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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3715. Отображено 100.
27-06-2013 дата публикации

Manual spray cleaner and protectants

Номер: US20130160798A1
Автор: Eric J. Hansen, Jesse J. Williams, Lindsay M. Ulman
Принадлежит: Bissell Homecare Inc

A method of cleaning a carpet surface comprises the steps of simultaneously dispensing a cleaning composition and an oxidizing composition that enhances the cleanability of the cleaning composition from separate first and second chambers onto the carpet surface and recovering a soiled cleaning solution from the carpet.

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Номер записи: 1
03-01-2019 дата публикации

AEROGELS, MATERIALS USING SAME, AND METHODS FOR PRODUCING SAME

Номер: US20190001293A1
Автор: Nakamura Taichi, OIKAWA Kazuma, Sakatani Shigeaki, TOYOTA KEI
Принадлежит:

Disclosed is an aerogel, having, on the surface of the aerogel, at least one type of dialkyldisiloxane bond serving as a hydrophobic group, and/or at least one type of crosslinked disiloxane bond serving as a hydrophobic group. Further disclosed is a material serving as at least one material selected from among a heat-insulation material, a sound-absorbing material, a water-repellant material, and an adsorption material, and this material includes the above-mentioned aerogel. Yet further disclosed is a method for producing the above-mentioned aerogel. 1. An aerogel comprising:a first aerogel having, on a surface of the first aerogel, at least one type of dialkyldisiloxane bond serving as a hydrophobic group; anda second aerogel having on a surface of the second aerogel one type of trialkylsiloxane bond.2. The aerogel according to claim 1 , wherein the alkyl groups present in the one type of dialkyldisiloxane bond each have a carbon number from 1 to 10.3. An aerogel claim 1 , according to claim 1 ,wherein the number of molecules of the first aerogel is about 0.5 to about 1.5 times greater than the number of molecules of the second aerogel.4. The aerogel according to claim 1 , wherein the alkyl groups present in the at least one type of trialkylsiloxane bond each have a carbon number from 1 to 10.5. (canceled)6. An aerogel claim 1 , comprising:an third aerogel having, on a surface of said third aerogel, at least one type of dialkyldisiloxane bond serving as a hydrophobic group, and/or at least one type of crosslinked disiloxane bond serving as a hydrophobic group; anda fourth aerogel having on a surface of said fourth aerogel at least one type of trialkylsiloxane serving as a hydrophobic group, wherein the number of molecules of the third aerogel is about 0.5 to about 1.5 times greater than the number of molecules of the fourth aerogel.7. The aerogel according to claim 6 , wherein the alkyl groups present in the at least one type of trialkylsiloxane bond each have a ...

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Номер записи: 2
04-01-2018 дата публикации

METHOD FOR PRODUCING AN AEROGEL MATERIAL

Номер: US20180001576A1
Автор: HUBER LUKAS, KOEBEL MATTHIAS
Принадлежит: EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT

The invention relates to a method for producing an aerogel material with a porosity of at least 0.55 and an average pore size of 10 nm to 500 nm, having the following steps: a) preparing and optionally activating a sol; b) filling the sol into a casting mold (); c) gelling the sol, whereby a gel is produced, and subsequently aging the gel; at least one of the following steps d) and e), d) substituting the pore liquid with a solvent; e) chemically modifying the aged and optionally solvent-substituted gel () using a reaction agent; followed by f) drying the gel, whereby the aerogel material is formed. The casting mold used in step b) is provided with a plurality of channel-forming elements () which are designed such that the sol filled into the casting mold lies overall at a maximum distance X from a channel-forming element over a specified minimum length L defined in the channel direction of the elements, with the proviso that X<15 mm and L/X>3. 1. A process for the production of an aerogel material with a porosity of at least 0.55 and an average pore size of 10 nm to 500 nm , comprising the following steps:a) preparing and optionally activating a sol;b) filling the sol into a casting mold;c) gelling the sol, whereby a gel is produced, and subsequently aging the gel; at least one of the following steps d) and e)d) exchanging the pore liquid with a solvente) chemically modifying the aged and optionally solvent-exchanged gel using a reacting agent; followed byf) drying the gel, whereby the aerogel material is formed; characterized in that the casting mold used in step b) is provided with a plurality of channel-forming elements, which are configured such that, along a specified minimum length L defined in the channel direction of the elements, every location of the sol filled into the casting mold has a maximum distance X from a channel-forming element fulfilling the provision that X≦15 mm and L/X>3.2. The process according to claim 1 , wherein the channel-forming ...

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Номер записи: 3
04-01-2018 дата публикации

METHOD OF PREPARING HYDROPHOBIC METAL OXIDE-SILICA COMPOSITE AEROGEL AND HYDROPHOBIC METAL OXIDE-SILICA COMPOSITE AEROGEL PREPARED THEREBY

Номер: US20180002182A1
Автор: JEON Hyun Woo, Kim Jong hun, Lee Je Kyun
Принадлежит:

The present invention relates to a method of preparing a hydrophobic metal oxide-silica composite aerogel having a high specific surface area and a low tap density and a hydrophobic metal oxide-silica composite aerogel prepared thereby. Thus, the preparation method may not only have excellent productivity and economic efficiency due to a relatively simpler preparation process and shorter preparation time than the related art, but may also prepare a hydrophobic metal oxide-silica composite aerogel having a high specific surface area and a low tap density. 1. A method of preparing a hydrophobic metal oxide-silica composite aerogel , the method comprising steps of:(1) adding a metal ion solution and an acid catalyst to a water glass solution and mixing together to prepare a metal oxide-silica composite gel;(2) surface-modifying the metal oxide-silica composite gel to prepare a hydrophobic metal oxide-silica composite wet gel; and(3) drying the hydrophobic metal oxide-silica composite wet gel,wherein the method further comprises treating the metal oxide-silica composite gel with alcohol before the surface modification of step 2.2. The method of claim 1 , wherein a concentration of water glass in the water glass solution is in a range of 0.1 M to 2.0 M.3. The method of claim 1 , wherein a concentration of metal ions in the metal ion solution is in a range of 0.05 M to 2.0 M.4. The method of claim 1 , wherein the metal ion solution is a binary metal ion solution including calcium ions (Ca) and magnesium ions (Mg).5. The method of claim 4 , wherein a molar ratio of the calcium ion (Ca) to the magnesium ion (Mg) in the metal ion solution is in a range of 1:0.3 to 1:3.6. The method of claim 1 , wherein the metal ion solution is added in an amount such that a molar ratio of metal ions to water glass is in a range of 0.5 to 1.7. The method of claim 1 , wherein step 1 is performed at a pH of 6 to 8.8. The method of claim 1 , wherein the acid catalyst comprises at least one ...

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Номер записи: 4
13-01-2022 дата публикации

METHOD FOR PRODUCING AEROGELS AND AEROGELS OBTAINED USING SAID METHOD

Номер: US20220009786A1
Автор: HINTEMANN Damian, KILZER Andreas, MÖLDERS Nils, RENNER Manfred, SENGESPEICK Andreas, WEIDNER Eckhard, WEISHAUPT Oliver
Принадлежит:

The invention relates to a method for producing an aerogel under increased pressure, to the aerogel obtained using said method and to their use. 1. A method for producing a silica aerogel by means of a sol-gel process , comprisingproducing a lyogel from a sol; andconverting the lyogel into an aerogel, whereinthe production of the lyogel is carried out at least partially at a pressure of more than 30 bar.2. The method according to claim 1 , wherein the production of the lyogel is carried out in a compressed gas claim 1 , a supercritical substance claim 1 , or a mixture of both.3. The method according to claim 1 , wherein:the pressure is selected from more than 40 bar, more than 50 bar, more than 60 bar, more than 70 bar, and more than 74 bar; and/orthe production of the lyogel is carried out at a temperature selected from above 50° C., 60° C., 70° C., and 80° C.4. The method according to claim 1 , wherein converting the lyogel into an aerogel is carried out at a pressure of more than 50 bar.5. The method according to claim 1 , wherein the sol is a solution or a dispersion of a precursor.6. The method according to claim 5 , wherein the precursor is selected from silicic acids claim 5 , in particular colloidal silicic acid claim 5 , colloidal silica claim 5 , silanes claim 5 , silica sols claim 5 , tetraalkoxysilanes claim 5 , siloxanes and mixtures thereof.7. The method according to claim 1 , wherein the sol comprises a hydrophobing silanizing agent.8. The method according to claim 1 , wherein the production of the lyogel is carried out by introducing the sol into a pressurized apparatus in the form of droplets.9. The method according to claim 1 , wherein after the production of the lyogel a solvent exchange is performed.10. The method according to claim 9 , wherein the solvent exchange occurs by contacting the lyogel with an organic solvent at elevated pressure.11. The method according to claim 10 , wherein the organic solvent is brought into contact with the lyogel ...

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Номер записи: 5
12-01-2017 дата публикации

GELLED COMPOSITION FOR AN ORGANIC MONOLITHIC GEL, USES THEREOF AND PROCESS FOR PREPARING SAME

Номер: US20170007975A1
Автор: Dorie Hugo, Dufour Bruno, Sonntag Philippe
Принадлежит:

The invention relates to a gelled carbon-based composition forming an organic polymeric monolithic gel which is suitable for forming an aerogel by drying, to uses and to a process for preparing this carbon-based composition. The invention applies especially to the production of such gels having a very low density and a very low heat conductivity, a very high specific surface area and a satisfactory compression strength, for their use as thermal superinsulators or as carbon-based electrode precursors of supercondensers. 1. A gelled carbon-based composition forming an organic polymeric monolithic gel which is capable of forming an aerogel by drying and a porous carbon monolith by pyrolysis of said aerogel , the composition comprising a resin derived at least partly from polyhydroxybenzenes H and from formaldehyde(s) F , said polyhydroxybenzenes comprising at least one unsubstituted polyhydroxybenzene R′ and at least one polyhydroxybenzene substituted with one or more alkyl groups , characterized in that said polyhydroxybenzenes comprise several said unsubstituted polyhydroxybenzenes R and R′ and in that the composition comprises a water-soluble cationic polyelectrolyte P.2. The gelled composition as claimed in claim 1 , characterized in that the composition has a heat conductivity of less than or equal to 40 mW.m.K.3. The gelled composition as claimed in claim 1 , characterized in that the composition comprises a product of a mixing reaction claim 1 , in an aqueous solvent:of a first said unsubstituted polyhydroxybenzene R, and in minor amount by mass, a second said unsubstituted polyhydroxybenzene R′, which is identical to or different from said first unsubstituted polyhydroxybenzene, and', 'in major amount by mass, said at least one substituted polyhydroxybenzene., 'of a premix H comprising4. The gelled composition as claimed in claim 3 , characterized in that claim 3 , in said product of the mixing reaction claim 3 , said premix H is present in equal or major ...

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Номер записи: 6
09-01-2020 дата публикации

METHOD OF PREPARING METAL OXIDE-SILICA COMPOSITE AEROGEL AND METAL OXIDE-SILICA COMPOSITE AEROGEL PREPARED BY THE SAME

Номер: US20200010328A1
Автор: Kim Jong hun, Lee Je Kyun
Принадлежит:

Provided is a method of preparing a metal oxide-silica composite aerogel and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method comprises adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step ); adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step ); and adding a second water glass solution to the precursor solution and performing a gelation reaction (step ). 1. A method of preparing a metal oxide-silica composite aerogel , the method comprising:1) adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution;2) adding a metal ion solution to the acidic water glass solution to prepare a precursor solution; and3) adding a second water glass solution to the precursor solution and performing a gelation reaction.2. The method according to claim 1 , wherein the pH of the acidic water glass solution is 0.1 to 2.9.3. The method according to claim 1 , wherein a reaction temperature while performing the gelation reaction is 10 to 100° C.4. The method according to claim 1 , wherein a reaction temperature while performing a gelation reaction is 10 to 80° C.5. The method according to claim 1 , wherein a concentration of the precursor solution is 0.1 to 3.9% by weight based on 1 L of a solvent.6. The method according to claim 1 , wherein a concentration of the precursor solution is 0.1 to 3.0% by weight based on 1 L of a solvent.7. The method according to claim 1 , wherein a concentration of the first water glass solution is 0.01 M to 2.0 M.8. The method according to claim 1 , wherein a concentration of the metal ion solution is 0.01 M to 2.0 M.9. The method according to claim 1 , wherein a concentration of the second water glass solution is 0.5 M to 6.0 M.10. The method according to claim 1 , wherein a concentration of the second water glass solution is higher than a ...

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Номер записи: 7
09-01-2020 дата публикации

SULFUR-LINKED HYBRID GEL COMPOSITIONS AND AEROGELS THEREOF

Номер: US20200010635A1
Автор: Deshpande Kiranmayi, Dong Wenting, Evans Owen R
Принадлежит:

Methods and materials are described for preparing organic-inorganic hybrid gel compositions where a sulfur-containing cross-linking agent covalently links the organic and inorganic components. The gel compositions are further dried to provide porous gel compositions and aerogels. The mechanical and thermal properties of the dried gel compositions are also disclosed. 1. A gel composition comprising an organic polymer and a silica network , with at least a cross link comprising sulfur.2. The gel composition of wherein the gel composition is an aerogel composition.3. The gel composition of or claim 1 , wherein the polymer is selected from the group consisting of unsaturated polyesters; prepolymers based on vinylesters claim 1 , acrylates claim 1 , methacrylates or polyurethanes claim 1 , polybutadiene claim 1 , polystyrene claim 1 , or polyisoprene; styrene-butadiene copolymers; butadiene-isoprene co-polymers; buradiene-isoprene-styrene terpolymers; copolymers or terpolymers of isobutylene claim 1 , para-methylstyrene and bromo-para-methyl-styrene; ethylene propylene diene monomer rubber and a combination thereof.4. The gel composition of or claim 1 , wherein the polymer is in the form of latex particles or polymer resin.5. The gel composition of or claim 1 , wherein the cross link is provided by a sulfur-containing cross linking agent.6. The gel composition of claim 5 , wherein the sulfur-containing cross linking agent is a hexasulfide compound claim 5 , a tetrasulfide compound claim 5 , or a disulfide compound.7. The gel composition of claim 5 , wherein the sulfur-containing cross linking agent is selected from the group consisting of polysulfide alkyl silanes claim 5 , mercapto aryl silanes claim 5 , polysulfide aryl silanes claim 5 , silated core polysulfides claim 5 , sulfur-containing silanes claim 5 , sulfanylsilanes claim 5 , sulfur-containing siloxanes claim 5 , sulfur-functional polyorganosiloxanes claim 5 , bis(triethoxysilylpropyl) tetrasulfide claim 5 , 3- ...

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Номер записи: 8
19-01-2017 дата публикации

PROCESS FOR PRODUCING AEROGELS BY DIELECTRIC HEATING

Номер: US20170014792A1
Автор: BONNARDEL Pierre-Antoine, CHAUSSON Sophie
Принадлежит: ENERSENS

The present invention relates to a process for producing aerogels, comprising the following successive steps: a) formation or casting of a sol in a reactor, optionally in the presence of a reinforcing material and/or an additive, b) complete gelling of the sol into a lyogel; c) optionally hydrophobization of the lyogel resulting in a hydrophobized lyogel; d) drying of the optionally hydrophobized lyogel so as to obtain an aerogel; said process being characterized in that the complete gelling step b) comprises dielectric heating by microwave or high-frequency electromagnetic irradiation, inducing an increase in temperature so as to reach a set temperature for complete gelling Tin a range of from 100° C. to 200° C., preferably from 100° C. to 150° C., the temperature Tbeing maintained in this range for a period of time U sufficient to attain complete gelling of the lyogel, and more particularly the end of syneresis of the lyogel. 115-. (canceled)16. Aerogel manufacturing process comprising the following successive steps:a) forming or pouring a sol into a reactor, optionally in the presence of a reinforcing material and/or an additive,b) complete jelling of the sol into a lyogel;c) optionally hydrophobing the lyogel leading to a hydrophobic lyogel;d) drying the optionally hydrophobic lyogel to obtain an aerogel;{'sub': b', 'b', '1, 'said process being characterized in that complete jellification step b) comprises dielectric heating by microwave or high-frequency electromagnetic irradiation inducing an increase in temperature to reach a complete jellification setpoint temperature Tin a range from 100° C. to 200° C., temperature Tbeing maintained in this range for a time tsufficient to reach the end of complete jellification of the lyogel, and more particularly completion of syneresis of the lyogel.'}17. The process of claim 16 , wherein time tis at least 6 minutes and less than or equal to 1 hour.18. The process of claim 16 , wherein temperature Tis comprised between ...

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Номер записи: 9
18-01-2018 дата публикации

TAILORING OF PORES IN AEROGELS USING 3D PRINTED STRUCTURES

Номер: US20180015436A1
Автор: Baumann Theodore F., Biener Juergen, Campbell Patrick, CHANDRASEKARAN Swetha, Oakdale James S., WORSLEY Marcus A.
Принадлежит:

In one embodiment, a method includes acquiring a three-dimensional printed template created using an additive manufacturing technique, infilling the template with an aerogel precursor solution, allowing formation of a sol-gel, and converting the sol-gel to an aerogel. In another embodiment, a product includes an aerogel having inner channels corresponding to outer walls of a three-dimensional printed template around which the aerogel was formed. 1. A method , comprising:acquiring a three-dimensional printed template created using an additive manufacturing technique;infilling the template with an aerogel precursor solution;allowing formation of a sol-gel; andconverting the sol-gel to an aerogel.2. The method of claim 1 , comprising removing the template.3. The method of claim 2 , wherein the template is removed by pyrolization.4. The method of claim 2 , wherein the template is removed by application of a solvent thereto.5. The method of claim 2 , wherein the aerogel has defined regions with different densities upon removal of the template therefrom.6. The method of claim 1 , wherein converting the sol-gel to the aerogel includes pyrollyzing the sol-gel.7. The method of claim 1 , wherein the template remains after conversion of the sol-gel to the aerogel.8. The method of claim 1 , wherein the aerogel is carbonaceous.9. The method of claim 1 , wherein the aerogel includes a metal oxide.10. The method of claim 1 , wherein the template is created using a photo-activated resist.11. The method of claim 1 , comprising creating the template.12. A product claim 1 , comprising:an aerogel having inner channels corresponding to outer walls of a three-dimensional printed template around which the aerogel was formed.13. The product of claim 12 , wherein the template is not present in the product.14. The product of claim 12 , wherein the template is present in the product.15. The product of claim 12 , wherein the aerogel is carbonaceous.16. The product of claim 12 , wherein the ...

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Номер записи: 10
18-01-2018 дата публикации

CONVERSION OF ADDITIVELY MANUFACTURED ORGANIC POLYMER PARTS TO SUBSTANTIALLY PURE CARBON

Номер: US20180016145A1
Автор: Baumann Theodore F., Biener Juergen, Campbell Patrick, CHANDRASEKARAN Swetha, Oakdale James S., WORSLEY Marcus A.
Принадлежит:

In one embodiment, a method includes creating a three-dimensional, carbon-containing structure using an additive manufacturing technique and converting the three-dimensional, carbon-containing structure to a substantially pure carbon structure. Moreover, the substantially pure carbon structure has an average feature diameter of less than about 100 nm. In another embodiment, a product includes a substantially pure carbon structure having an average feature diameter of less than about 100 nm. In yet another embodiment, a product includes an aerogel having inner channels corresponding to outer walls of a three-dimensional printed template around which the aerogel was formed. In addition, the inner channels have an average feature diameter of less than about 100 nm. 1. A method , comprising:creating a three-dimensional, carbon-containing structure using an additive manufacturing technique,converting the three-dimensional, carbon-containing structure to a substantially pure carbon structure,wherein the substantially pure carbon structure has an average feature diameter of less than about 100 nm.2. The method of claim 1 , wherein the substantially pure carbon structure has at least one of an edge and a diameter of at least 1 mm in length.3. The method of claim 1 , wherein the substantially pure carbon structure has at least one of an edge and a diameter of at least 1 cm in length.4. The method of claim 1 , wherein converting the three-dimensional claim 1 , carbon-containing structure to the substantially pure carbon structure includes heating the three-dimensional claim 1 , carbon-containing structure in a vacuum.5. The method of claim 4 , wherein the heating is performed in a sequence of steps claim 4 , each step including an increasing heating rate and a holding period at a predefined temperature.6. The method of claim 1 , wherein converting the three-dimensional claim 1 , carbon-containing structure to the substantially pure carbon structure includes heating the three- ...

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Номер записи: 11
17-01-2019 дата публикации

CENTRAL FED ROLLER FOR FILAMENT EXTENSION ATOMIZER

Номер: US20190015862A1
Автор: Johnson David Mathew
Принадлежит:

A roller has an outer cylindrical surface having an array of holes, a central feed channel inside the roller, and vanes connecting the channel to the holes, forming a path for liquid between the channel and the holes. An atomization system having a fluid reservoir; a pair of rollers, at least one of the rollers having: a central feed channel, the channel fluidically connected to the fluid reservoir, an array of holes on a surface of the roller, and vanes connecting the channels to the holes, a nip formed between the rollers, and a receiving surface positioned to receive droplets formed when liquid exits the holes, stretches between the rollers as they counterrotate to form filaments and the filaments break into droplets. 1. A roller , comprising:an outer cylindrical surface having an array of holes;a central feed channel inside the roller;vanes connecting the channel to the holes, forming a path for liquid between the channel and the holes.2. The roller of claim 1 , further comprising a coupling between the channel and a liquid repository.3. The roller of claim 1 , wherein the liquid comprises a polymer.4. The roller of claim 1 , wherein each hole in the array of holes are all a same size.5. The roller of claim 1 , wherein at least some of the holes in the array of holes are of different sizes than other holes in the array.6. The roller of claim 1 , wherein the holes are recessed.7. The roller of claim 1 , wherein the holes are protruding.8. An atomization system claim 1 , comprising:a fluid reservoir; a central feed channel, the channel fluidically connected to the fluid reservoir;', 'an array of holes on a surface of the roller; and', 'vanes connecting the channels to the holes;, 'a pair of rollers, at least one of the rollers havinga nip formed between the rollers; anda receiving surface positioned to receive droplets formed when liquid exits the holes, stretches between the rollers as they counterrotate to form filaments and the filaments break into droplets.9. ...

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Номер записи: 12
21-01-2021 дата публикации

METHOD OF PREPARING METAL OXIDE-SILICA COMPOSITE AEROGEL AND METAL OXIDE-SILICA COMPOSITE AEROGEL PREPARED BY THE SAME

Номер: US20210016239A1
Автор: Kim Jong hun, Lee Je Kyun
Принадлежит:

Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively. 1. A method of preparing a metal oxide-silica composite aerogel , the method comprising:1) adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution;2) adding a metal ion solution to the acidic water glass solution to prepare a precursor solution; and3) adding a second water glass solution to the precursor solution and performing a gelation reaction to yield a metal oxide-silica composite wet gel,wherein, in steps 2) and 3), bubbling of an inert gas is performed with an inert gas during the adding of the metal ion solution or the second water glass solution, respectively.2. The method according to claim 1 , wherein the inert gas comprises one or more of helium (He) claim 1 , neon (Ne) claim 1 , argon (Ar) claim 1 , krypton (Kr) claim 1 , xenon (Xe) claim 1 , radon (Rn) claim 1 , nitrogen (N) claim 1 , and carbon dioxide (CO) gases.3. The method according to claim 1 , wherein the pH of the acidic water glass solution is 0.1 to 2.9.4. The method according to claim 1 , wherein the concentration of the first water glass solution is 0.01 M to 2.0 M.5. The method according to claim 1 , wherein the concentration of the metal ion solution is 0.01 M to 2.0 M.6. The method ...

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Номер записи: 13
17-01-2019 дата публикации

LOW DENSITY CLOSED CELL COMPOSITE AEROGEL FOAM AND ARTICLES INCLUDING SAME

Номер: US20190016957A1
Автор: Markesbery Michael Glenn, Nash Jeffrey, Venna Rithvik
Принадлежит:

A composite foam is provided having silica aerogel particles dispersed in a closed cell polymeric foam. The silica aerogel particles are included in a volume fraction between 2 and 60%, and the composite foam has a thermal conductivity of 40 kW/mK or less and a density of 60 kg/mor less. In another embodiment, a composite foam is provided having a perforated closed cell polymeric foam and 2-60% hydrophobic silica aerogel particles by volume with a particle size distribution of 1 to 50 where the composite foam has a thermal conductivity of 30 kW/mK or less, a density of 20-45 kg/m, and an air permeability of 20-40 cubic feet per minute. 1. A composite foam comprising:silica aerogel particles dispersed in a closed cell polymeric foam,{'sup': '3', 'wherein the composite foam includes the silica aerogel particles in a volume fraction between 2 and 60%, and has a thermal conductivity of 40 kW/mK or less and a density of 60 kg/mor less.'}2. The composite foam of claim 1 , wherein the density is 50 kg/mor less.3. The composite foam of claim 1 , wherein the density is 20-45 kg/m.4. The composite foam of claim 1 , wherein the density is 30-40 kg/m.5. The composite foam of claim 1 , wherein the thermal conductivity is 30 kW/mK or less.6. The composite foam of claim 1 , wherein the silica aerogel particles are hydrophobic.7. The composite foam of claim 6 , wherein a water absorption of the composite foam is 0.1% by volume or less.8. The composite foam of claim 1 , wherein the composite foam has an average thickness between 1.5 to 6 mm.9. The composite foam of claim 1 , wherein the composite foam includes perforations having a diameter of 1 mm or less.10. The composite foam of claim 1 , wherein the composite foam is perforated with an air permeability of 5-60 cubic feet per minute.11. The composite foam of claim 1 , wherein the silica aerogel particles are included in a volume fraction from 3-40%.12. The composite foam of claim 1 , wherein the silica aerogel particles have a ...

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Номер записи: 14
25-01-2018 дата публикации

DEVICES AND METHODS FOR THE CONTROLLED FORMATION AND DISPENSION OF SMALL DROPS OF HIGHLY VISCOUS AND/OR NON-NEWTONIAN LIQUIDS

Номер: US20180021801A1
Автор: BECK VICTOR, Johnson David Mathew
Принадлежит:

A controlled-volume spray deposition system has a fluid feed system including a pair of bi-directional, counter-rotating rollers to dispense fluid as a first surface, the rollers operable to rotate in a first direction to dispense the fluid, a second surface positioned to receive the fluid when the rollers rotate in the first direction, and the rollers operable to rotate in a second direction to retract the fluid to cause the fluid to stretch and form a filament until it breaks to form a spray. A method of generating a controlled-volume spray includes feeding fluid between two counter-rotating rollers as a first surface as they rotate in a first direction until the fluid contacts a second surface, reversing the counter-rotating rollers such that they pull the fluid to form a fluid filament, and causing the filament to break into a spray. 1. A controlled-volume spray deposition system , comprising:a fluid feed system comprising a pair of bi-directional, counter-rotating rollers to dispense fluid as a first surface, the rollers operable to rotate in a first direction to dispense the fluid;a second surface positioned to receive the fluid when the rollers rotate in the first direction; andthe rollers operable to rotate in a second direction to retract the fluid to cause the fluid to stretch and form a filament until it breaks to form a spray.2. The system of claim 1 , wherein the rollers are movable in a direction towards and away from the second surface.3. The system of claim 1 , wherein the second surface is movable in a direction towards and away from the first surface.4. The system of claim 1 , wherein the first and second surfaces are movable towards and away from the first surface.5. The system of claim 1 , wherein the second surface comprises a piston.6. The system of claim 1 , wherein the second surface comprises a second set of counter-rotating rollers.7. A method of generating a controlled-volume spray claim 1 , comprising:feeding fluid between two counter- ...

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Номер записи: 15
26-01-2017 дата публикации

Monolithic, super heat-insulating, organic aerogel composition preparation method, said composition, and the use thereof

Номер: US20170022345A1
Автор: Benjamin Swoboda, Bruno Dufour, Cedric HUILLET, Florian FANNECHERE, Nadine Poupa
Принадлежит: HUTCHINSON SA

The invention relates to a process for preparing a gelled, dried composition forming a monolithic aerogel with a heat conductivity of less than or equal to 40 mW·m −1 ·K −1 and derived from a resin of polyhydroxybenzene(s) and formaldehyde(s), to this aerogel composition and to the use thereof. This process comprises: a) polymerization in an aqueous solvent of said polyhydroxybenzene(s) and formaldehyde(s) in the presence of an acidic or basic catalyst, to obtain a solution based on the resin, b) gelation of the solution obtained in a) to obtain a gel of the resin, and c) drying of the gel to obtain a dried gel. According to the invention, step a) is performed in the presence of a cationic polyelectrolyte dissolved in this solvent, and the process also comprises a step d) of heat treatment under inert gas of the dried gel obtained in step c) at temperatures of between 150° C. and 500° C. to obtain the non-pyrolyzed aerogel whose heat conductivity is substantially unchanged, even after exposure to a humid atmosphere.

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Номер записи: 16
10-02-2022 дата публикации

Process for continuous supercritical drying of aerogel particles

Номер: US20220041817A1
Автор: Dirk Weinrich, Fynn Missfeldt, lrina Smirnova, Marc Fricke, Pavel GURIKOV, Raman SUBRAHMANYAM, Sohajl MOVAHHED, Wibke LOELSBERG
Принадлежит: BASF SE

Processes for drying gel particles, in particular for producing aerogels, involve providing a suspension containing gel particles and a solvent, introducing the suspension into a column where carbon dioxide flows in countercurrent, and removing dried aerogel particles from the column. The suspension is introduced in the top region of the column and dried aerogel particles are removed in the lower region. Pressure and temperature in the column are set such that the mixture of carbon dioxide and solvent is virtually supercritical or is supercritical. The aerogel particles can be discharged via discharge vessels or continuous decompression. Aerogel particles can be obtained by such a process and the aerogel particles can be used for medical and pharmaceutical applications, as additive or carrier material for additives for foods, as catalyst support, for cosmetic, hygiene, washing and cleaning applications, for production of sensors, for thermal insulation, or as a core material for VIPs.

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Номер записи: 17
24-01-2019 дата публикации

PREPARATION OF A METASTABLE TETRAGONAL ZIRCONIA AEROGEL

Номер: US20190023581A1
Автор: Bækgaard Per, Jespersen Henrik Tofte, Schaumburg Kjeld
Принадлежит: Aproxi APS

The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material. 1. A process for the preparation of metastable tetragonal zirconia in the form of an aerogel material , said process comprising the sequential steps of:{'sub': 1', '4, '(a) allowing zirconium(IV) alkoxide to polycondensate in the presence of one or more C-Ccarboxylic acids so as to obtain an amorphous zirconia aerogel;'}(b) optionally washing said amorphous zirconia aerogel;(c) treating said amorphous zirconia aerogel with formic acid;{'sub': '2', '(d) flushing said amorphous zirconia aerogel with liquid or supercritical CO;'}(e) optionally grinding the amorphous zirconia aerogel to obtain a particulate amorphous zirconia aerogel;(f) heating said optionally particulate amorphous zirconia aerogel under a dry atmosphere at a temperature of in the range of 400-750° C. so as to obtain an optionally particulate metastable tetragonal zirconia aerogel.2. The process according to claim 1 , said process comprising the sequential steps of:{'sub': 2', '1', '4, '(a1) allowing zirconium(IV) alkoxide dissolved in liquid or supercritical COto polycondensate in the presence of one or more C-Ccarboxylic acids in a pressurized reaction vessel so as to obtain an amorphous zirconia aerogel;'}{'sub': '2', '(b1) optionally washing said amorphous zirconia aerogel with liquid or supercritical CO;'}{'sub': '2', '(c1) treating said amorphous zirconia aerogel with formic acid in liquid or supercritical CO;'}{'sub': '2', '(d1) flushing said amorphous zirconia aerogel with liquid or supercritical CO;'}(e) optionally grinding the amorphous zirconia aerogel to obtain a particulate amorphous zirconia aerogel;(f) heating said optionally ...

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Номер записи: 18
04-02-2016 дата публикации

TITANIUM OXIDE AEROGEL COMPOSITES

Номер: US20160030908A1
Автор: FORRÓ László, HORVÁTH Endre, MAGREZ Arnaud
Принадлежит:

The invention relates to titanium oxide aerogels, in particular to titanium oxide binary or ternary (e.g. titanium oxide-carbon) aerogel monoliths possessing ordered meso- and macroporosity. The porous scaffold can be made with or without addition of binders and/or surfactants. The aerogel obtained by this method has a specific surface area greater than 60 m2/g and porosity larger than 60%. The surface area ranges from 60 to 300 m2/g. The porosity can reach as high as 99.6%. The size of the titanium oxide crystals are between 5 nm and 100 nm. The aerogel contains 100% titanium oxide. The composite (binary or ternary) aerogel can be prepared by adding at least 10% carbon in the form of (carbon nanotubes, carbon nanofibers, carbon microfibers, exfoliated graphene, cellulose fibers, polymer fibers, metallic and metal oxide nano and microfibers etc.). The aerogel can be prepared with a predeterminable shape. It can be shaped in a mold having a shape of a cylinder, cube, sheet or sphere. The aerogel can be also transformed into a supported or self-standing film with a thickness. The material can be used as a self-cleaning filter e.g. in a solar-thermal water and air purification system, in mesoscopic solar cells e.g. dye sensitized solar cells, multifunctional filler in polymer composites, in ceramics, in metals, thermoelectric material to convert (waste) heat into electricity, heat insulation material and electrode material in lithium ion batteries and supercapacitors. 1. Titanium oxide aerogel made of at least 90% titanium oxide and showing a porosity of at least 90%.2. Aerogel according to with a porosity between 90% and 99.6%.3. Aerogel according to made of 100% of titanium oxide.4. Aerogel according to made of at least 90% titanium oxide claim 1 , showing a porosity of at least 60% claim 1 , having a specific surface area greater than 60 m/g and a porosity greater than 60% claim 1 , said aerogel being obtained according to a process including a step where a ...

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Номер записи: 19
17-02-2022 дата публикации

Molecularly doped nanodiamond

Номер: US20220048002A1
Автор: CRANE Matthew J., Pauzauskie Peter J., Stroud Rhonda M.
Принадлежит: The Government of the United States of America, as represented by the Secretary of the Navy

A method of making molecularly doped nanodiamond. A versatile method for doping diamond by adding dopants into a carbon precursor and producing diamond at high pressure, high temperature conditions. Molecularly doped nanodiamonds that have direct incorporation of dopants and therefore without the need for ion implantation. Molecularly-doped diamonds that have fewer lattice defects than those made with ion implantation. 1. A molecularly doped nanodiamond made from the steps comprising:adding a dopant to a sol-gel precursor;synthesizing via sol-gel synthesis an amorphous carbon aerogel comprising an open pore network;drying the amorphous carbon aerogel;sintering the amorphous carbon aerogel;preserving the open pore network;loading the amorphous carbon aerogel into a diamond anvil cell;forming a sealed chamber around the amorphous carbon aerogel;flowing a noble gas into the sealed chamber;liquefying the noble gas by condensation;allowing the liquefied noble gas to fill the open pore network of the doped amorphous carbon aerogel;generating noble gas defects within the doped amorphous carbon aerogel;without using ion implantation;pressurizing the diamond anvil cell;heating the doped amorphous carbon aerogel incorporating the noble gas dopants; andtransforming the doped amorphous carbon aerogel incorporating the noble gas dopants into molecularly doped nanodiamond incorporating the noble gas dopants.2. The molecularly doped nanodiamond ofwherein the noble gas is one selected from the group consisting of Ar, Kr, Xe, and Ne.3. The molecularly doped nanodiamond of wherein the step of liquefying the noble gas by condensation comprises condensing the noble gas with liquid nitrogen or cryogen.4. The molecularly doped nanodiamond of wherein the step of pressurizing the diamond anvil cell comprises pressures ≥20 Gpa and wherein the step of heating the doped amorphous carbon aerogel comprises temperatures ≥2000K.5. A molecularly doped nanodiamond comprising:an amorphous carbon ...

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Номер записи: 20
17-02-2022 дата публикации

METHOD OF FREEZE-DRYING

Номер: US20220048098A1
Автор: Golfetto Michael
Принадлежит:

A method of freeze-drying comprising rapidly freezing either liquid or supercritical carbon dioxide in and around a material having pores at a rate of at least 0.2° C./min to limit the size of crystals formed from the carbon dioxide so as to avoid the formation of gas bubbles and damage to the pores and exposure of the material to gas-liquid interfaces. During freezing a solid layer primarily of solid carbon dioxide is formed on and surrounding the material by transferring heat with a cryogenic liquid circulating about the material. This solid layer protects the material from gas-liquid interfaces and surface tension before decreasing pressure about the material by venting carbon dioxide. 1. A method of preserving a material in contact with a first fluid comprising the steps of;replacing the first fluid with a first non-gaseous fluid,cooling the first non-gaseous fluid to cause the first non-gaseous fluid to freeze to form a solid, andcharacterized by:forming a solid layer of the solid on and surrounding the material,then decreasing pressure about the material by expanding the first non-gaseous fluid to form a gas.2. The method of wherein the decreasing pressure is at a rate of at least 0.001 Mpa/min and less than or equal to 2.0 Mpa/min.3. The method of wherein the forming a solid layer of the solid on and surrounding the material comprises transferring heat with a liquid circulating about the material.4. The method of wherein the first fluid is non-gaseous.5. The method of wherein the replacing the first fluid with the first non-gaseous fluid comprises flushing the first fluid from the material with the first non-gaseous fluid.6. The method of comprising subliming the solid from the material.7. The method of including;preserving a material containing at least one pore,subjecting the material to an impregnating agent with the impregnating agent being non-gaseous at the temperature and pressure conditions at which the first non-gaseous fluid is sublimed and with the ...

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Номер записи: 21
30-01-2020 дата публикации

METHOD TO PRODUCE COLORLESS, HIGH POROSITY, TRANSPARENT POLYMER AEROGELS

Номер: US20200031977A1
Автор: BULGER ELI, Chintapalli Mahati, HO ALEC, Iftime Gabriel, KEOSHKERIAN Barkev, Van Overmeere Quentin
Принадлежит:

A method to produce a polymer gel includes dissolving precursors in a solvent to form a precursor solution, the precursors including polymer precursors, a stable free radical, one or more initiating radicals, and one or more stable free radical control agents, and heating the precursor solution to a temperature of polymerization to produce a cross-linked gel. A dried polymer aerogel has a Brunauer-Emmett Teller (BET) surface area over 100 m2/g, porosity of greater than 10%, visible transparency greater than 20%, color rendering index of over 20%, and average pore size of less than 100 nm. 1. A method to produce a polymer gel , comprising:dissolving precursors in a solvent to form a precursor solution, the precursors including polymer precursors, a stable free radical, one or more initiating radicals, and one or more stable free radical control agents; andheating the precursor solution to a temperature of polymerization to produce a cross-linked gel.2. The method of claim 1 , wherein the stable free radical control agent comprises one or more reducing agents.3. The method of claim 1 , wherein the stable free radical control agent comprises one or more time-controlled decomposing initiators.4. The method of claim 1 , wherein the stable free radical control agent comprises a mixture of one or more reducing agents and one or more time-controlled decomposing initiators.5. The method of claim 1 , further comprising mixing and deoxygenating the mixture of precursors in solvent.6. The method of claim 1 , wherein the polymer precursors comprise from at least one selected from a first group consisting of: difunctional monomers with two vinyl groups; crosslinkers with three or more vinyl groups; divinylbenzene claim 1 , tricyclodecane dimethanol diacrylate; hexanediol diacrylate; butanediol diacrylate; hexanediol dimethacrylate; butanediol dimethacrylate; trimethacryl adamantine; dipentaerythritol pentacrylate; and one of either alone or combined with at least one selected ...

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Номер записи: 22
24-02-2022 дата публикации

POROUS CO-POLYMERIC GEL COMPOSITIONS, POROUS CARBON COMPOSITIONS, AND METHODS FOR SYNTHESIS THEREOF

Номер: US20220055013A1
Автор: Leventis Nicholas, Saeed Malik Adnan, Sotiriou-Leventis Chariklia
Принадлежит: ASPEN AEROGELS, INC.

The present invention discloses novel porous polymeric compositions comprising random copolymers of amides, imides, ureas, and carbamic-anhydrides, useful for the synthesis of monolithic bimodal microporous/macroporous carbon aerogels. It also discloses methods for producing said microporous/macroporous carbon aerogels by the reaction of a polyisocyanate compound and a polycarboxylic acid compound, followed by pyrolytic carbonization, and by reactive etching with COat elevated temperatures. Also disclosed are methods for using the microporous/macroporous carbon aerogels in the selective capture and sequestration of carbon dioxide. 1. A porous co-polymeric composition comprising gels or aerogels , said composition including at least an amide linkage , an imide linkage and a urea linkage present in any random order.27-. (canceled)9. The composition of claim 8 , wherein R1 claim 8 , R2 claim 8 , R3 claim 8 , and R4 are H.10. (canceled)11. A porous co-polymeric composition comprising gels and/or aerogels:{'br': None, 'sub': 't', '-{-[G1-L5-G2]s-[G1-L6-G2]-[G1-L7-G2]u-}p-\u2003\u2003(Ib)'}wherein G1 is a moiety selected from C1-C10 straight chain alkyl or branched alkyl or cycloalkyl, alkylaryl, aryl, heteroalkyl, heterocyclylalkyl, or heteroaryl, each of which is optionally substituted;G2 is a moiety selected from alkyl, cycloalkyl, heteroalkyl, heterocylcoalkyl, alkylaryl, cycloalkylaryl, alkylheteroaryl, cycloalkylheteroaryl, an arene ring system, or a heteroarene ring system, each of which is optionally substituted;L5, L6, and L7 represent one or more linkages selected from any of amide, imide, and urea moieties, present in any random order, and/or any combinations thereof;s, t, and u are integers independently ranging from 0 to 10; and,p is an integer ranging from 1 to about 500.12. (canceled)14. The composition of claim 13 , wherein R1 claim 13 , R2 claim 13 , R3 claim 13 , and R4 are H.15. A porous carbon composition that comprises monolithic carbon gels and/or ...

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Номер записи: 23
24-02-2022 дата публикации

DEVICE AND METHOD FOR CONTROLLING SHAPE OF AEROSOL PARTICLE CONDENSATION GROWTH FLOW FIELD THROUGH ELECTROMAGNETIC FIELD

Номер: US20220055046A1
Автор: CAO Yanlong, Liu Chenyang, LIU Yueyan, WU Taiquan, YU Mingzhou, Zhang Qianyu, ZHANG Yitao, ZHU Binbin
Принадлежит:

The present disclosure provides a device for controlling the shape of an aerosol particle condensation growth flow field through an electromagnetic field. The device includes an aerosol growth device and a power supply. The aerosol growth device includes a porous medium, magnetic rubber and an electromagnet group. The magnetic rubber is sleeved in an inner cavity of the electromagnet group, and the porous medium is sleeved in an inner cavity of the magnetic rubber. The magnetic rubber is clung or clings to the porous medium, and the power supply is connected with the electromagnet group. The present disclosure also provides a method for controlling the shape of the aerosol particle condensation growth flow field through the electromagnetic field. 1. A device for controlling the shape of an aerosol particle condensation growth flow field through an electromagnetic field , comprising:an aerosol growth device and a power supply, wherein the aerosol growth device comprises a porous medium, magnetic rubber and an electromagnet group connected to the power supply;the magnetic rubber is sleeved in an inner cavity of the electromagnet group, and the porous medium is sleeved in an inner cavity of the magnetic rubber, where the magnetic rubber clings to the porous medium.2. The device for controlling the shape of an aerosol particle condensation growth flow field through an electromagnetic field according to claim 1 , wherein the electromagnet group is a circular electromagnet coil composed of a plurality of arc-shaped iron cores claim 1 , and a winding coil is arranged on the edge of the arc-shaped iron core;the winding coils are connected with the power supply; andthe magnetic rubber is prepared by taking rubber as a matrix and adding magnetic solid powder.3. The device for controlling the shape of an aerosol particle condensation growth flow field through an electromagnetic field according to claim 2 , wherein the electromagnet group comprises direct-current electromagnets ...

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Номер записи: 24
09-02-2017 дата публикации

NITROGEN-DOPED CARBON AEROGELS FOR ELECTRICAL ENERGY STORAGE

Номер: US20170040123A1
Автор: Baumann Theodore F., Biener Juergen, Campbell Patrick, Merrill Matthew, Montalvo Elizabeth, Reed Eric W., WORSLEY Marcus A.
Принадлежит:

Disclosed here is a method for making a nitrogen-doped carbon aerogel, comprising: preparing a reaction mixture comprising formaldehyde, at least one nitrogen-containing resorcinol analog, at least one catalyst, and at least one solvent; curing the reaction mixture to produce a wet gel; drying the wet gel to produce a dry gel; and thermally annealing the dry gel to produce the nitrogen-doped carbon aerogel. Also disclosed is a nitrogen-doped carbon aerogel obtained according to the method and a supercapacitor comprising the nitrogen-doped carbon aerogel. 1. A method for making a nitrogen-doped carbon aerogel , comprising:preparing a reaction mixture comprising formaldehyde, at least one nitrogen-containing resorcinol analog, at least one catalyst, and at least one solvent;curing the reaction mixture to produce a wet gel;drying the wet gel to produce a dry gel; andthermally annealing the dry gel to produce the nitrogen-doped carbon aerogel.2. The method of claim 1 , wherein the resorcinol analog is selected from (a) an aromatic compound comprising a nitrogen-containing ring linked to at least two hydroxyl groups and (b) an aromatic compound comprising a benzene ring or nitrogen-containing ring linked to at least one hydroxyl group and at least one amine group claim 1 , wherein the nitrogen-containing ring is selected from the group consisting of pyridine claim 1 , pyrazine claim 1 , pyrimidine claim 1 , pyridazine claim 1 , pyrrole claim 1 , pyrazole and imidazole.3. The method of claim 1 , wherein the resorcinol analog is pyridinediol.4. The method of claim 1 , wherein the resorcinol analog is aminophenol.5. The method of claim 1 , wherein the solvent is water and/or an organic solvent.6. The method of claim 1 , wherein the catalyst is selected from the group consisting of acetic acid claim 1 , nitric acid claim 1 , ascorbic acid claim 1 , hydrochloric acid claim 1 , sulfuric acid claim 1 , sodium carbonate claim 1 , sodium hydroxide claim 1 , ammonium hydroxide ...

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Номер записи: 25
16-02-2017 дата публикации

METHOD FOR PRODUCING DISPERSIONS OF NANOSHEETS

Номер: US20170044683A1
Автор: BUCKLEY David, CULLEN Patrick Linden, Howard Christopher, Skipper Neal
Принадлежит:

The present invention provides a method for producing a solution of nanosheets, comprising the step of contacting an intercalated layered material with a polar aprotic solvent to produce a solution of nanosheets, wherein the intercalated layered material is prepared from a layered material selected from the group consisting of a transition metal dichalcogenide, a transition metal monochalcogenide, a transition metal trichalcogenide, a transition metal oxide, a metal halide, an oxychalcogenide, an oxypnictide, an oxyhalide of a transition metal, a trioxide, a perovskite, a niobate, a ruthenate, a layered III-VI semiconductor, black phosphorous and a V-VI layered compound. The invention also provides a solution of nanosheets and a plated material formed from nanosheets. 1. A method for producing a solution of nanosheets , comprising the step of contacting an intercalated layered material with a polar aprotic solvent to produce a solution of nanosheets , wherein the intercalated layered material is prepared from a layered material selected from the group consisting of a transition metal dichalcogenide , a transition metal monochalcogenide , a transition metal trichalcogenide , a transition metal oxide , a metal halide , an oxychalcogenide , an oxypnictide , an oxyhalide of a transition metal , a trioxide , a perovskite , a niobate , a ruthenate , a layered III-VI semiconductor , black phosphorous and a V-VI layered compound.2. The method according to claim 1 , wherein the layered material is selected from the group consisting of a transition metal dichalcogenide claim 1 , a transition metal monochalcogenide claim 1 , a transition metal trichalcogenide claim 1 , a transition metal oxide claim 1 , a layered III-VI semiconductor claim 1 , black phosphorous and a V-VI layered compound.3. The method according to claim 2 , wherein the layered material is selected from the group consisting of a transition metal dichalcogenide claim 2 , a transition metal monochalcogenide ...

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Номер записи: 26
03-03-2022 дата публикации

INTERNALLY REINFORCED AEROGEL AND USES THEREOF

Номер: US20220063240A1
Автор: MERWIN Michael, POE Garrett, SAKAGUCHI Alan
Принадлежит:

A composite comprising a non-fibrous organic polymer aerogel layer having a first surface and an opposing second surface and a support layer having a first surface and an opposing second surface is disclosed. An interface can be formed between a portion of the first surface of the aerogel layer and a portion of the second surface of the support layer such that the aerogel and support layers are attached to one another. A majority of the volume of the aerogel layer does not have to include the support layer. The composite can have a thickness of 3 mils to 16 mils.

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Номер записи: 27
03-03-2022 дата публикации

THERMALLY TREATED POLYAMIC AMIDE AEROGEL

Номер: US20220064399A1
Автор: IRVIN DAVID J., JOAQUIN Alysa M., MANNING Janae D., Poe Garrett D., SAKAGUCHI Alan D.
Принадлежит:

Thermally treated aerogel compositions that include polyamic amides in an amount less than the aerogel compositions that include polyamic amides prior to thermal treatment, and articles of manufacture that include or are manufactured from the aerogel compositions are described.

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Номер записи: 28
13-02-2020 дата публикации

METHOD FOR PROVIDING AN AEROSOL-GENERATING DEVICE, AEROSOL-GENERATING DEVICE AND FLAT AEROSOL-GENERATING ARTICLE FOR USE IN SUCH A DEVICE

Номер: US20200046023A1
Автор: REEVELL Tony
Принадлежит:

The method for providing an aerosol-generating device for use with a shape-transformable aerosol-forming substrate comprises providing an aerosol-generating device comprising a device housing comprising a moulding cavity. The moulding cavity at least partially corresponds to a moulding space between a first mould half and a second mould half of a mould, the first mould half and the second mould half being internal surfaces of the device housing. The method further comprises the step of providing a flat aerosol-forming substrate adapted to change shape when pressed into the moulding cavity and being transformed into a non-flat aerosol-forming substrate. The invention also refers to a flat aerosol-generating article and a kit comprising a flat aerosol-generating article and an aerosol-generating device. 1. Method for providing an aerosol-generating device for use with a shape-transformable aerosol-forming substrate , the method comprising the steps of:providing an aerosol-generating device comprising a device housing comprising a moulding cavity, the moulding cavity at least partially corresponding to a moulding space between a first mould half and a second mould half of a mould, the first mould half and the second mould half being internal surfaces of the device housing;providing a flat aerosol-forming substrate adapted to change shape when pressed into the moulding cavity and being transformed into a non-flat aerosol-forming substrate having a shape corresponding to the non-flat moulding space in the mould upon closing of the mould.2. Method according to comprising the steps of:providing a device housing comprising a mouthpiece and a body portion, the body portion comprising a first internal surface having a shape comprising a frustum, the mouthpiece comprising a second internal surface having a shape corresponding to the shape of the first internal surface of the body portion, the first and second internal surfaces forming the first and second mould halves of the ...

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Номер записи: 29
25-02-2016 дата публикации

APPARATUS AND METHOD FOR PRODUCING DISPERSIONS AND SOLIDS

Номер: US20160051956A1
Автор: BAUMSTUEMMLER Bernd, Penth Bernd, PENTH Felix, TUERELI Akif Emre
Принадлежит: Instillo GmbH

The invention relates to an apparatus and method for the production of dispersions and solids by way of controlled precipitation, co-precipitation and self-organisation processes in a microjet reactor, a jet of solvent containing at least one target molecule and a jet of nonsolvent colliding with each other, at specified pressures and flow rates, at a collision point in the reactor chamber of the microjet reactor, and the microjet reactor having a gas inlet for introducing gas into the reactor chamber and an educt outlet for discharging the educts in a stream of gas. This results in very rapid precipitation, co-precipitation or a chemical reaction, during the course of which micro- or nanoparticles form. 114-. (canceled)15516676117. An apparatus , comprising a microjet reactor and a spray-drier unit , for producing dispersions and solids by way of controlled precipitation , co-precipitation and self-organization processes , the microjet reactor being configured such that it has at least two mutually opposite nozzles , each with its own pump and feed line for injecting a liquid medium into a reactor chamber enclosed in a reactor housing and onto a common collision point (K) , and the microjet reactor having a gas inlet () for introducing gas into the reactor chamber () and an educt outlet () for discharging the educts in a stream of gas , wherein the educt outlet () is followed immediately by a spray-drier unit () configured as a length of piping connected to the educt outlet () of the microjet reactor and being supplied from the side with one or more streams of air or inert gas , and wherein a feedback control system () is provided to optimize and maintain the operating parameters for the spray-drier unit ().1679. The apparatus according to claim 15 , wherein the spray-dryer unit () includes means () for heating the stream of air or inert gas.1711. The apparatus according to claim 15 , wherein the temperature of the stream of air or inert gas is controllable via the ...

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Номер записи: 30
03-03-2022 дата публикации

Polyimide bead materials and methods of manufacture thereof

Номер: US20220069290A1
Автор: Alexei A. Erchak, George L. Gould, Harris R. Miller, Nicholas A. ZAFIROPOULOS, Nicholas Leventis, Redouane Begag, Roxana Trifu, Wendell E. Rhine
Принадлежит: Aspen Aerogels Inc

Nanoporous carbon-based scaffolds or structures, and specifically carbon aerogels and their manufacture and use thereof are provided. Embodiments include a silicon-doped anode material for a lithium-ion battery, where the anode material includes beads of a polyimide-derived carbon aerogel. The carbon aerogel may further include silicon particles and accommodates expansion of the silicon particles during lithiation. The anode material provides optimal properties for use within the lithium-ion battery.

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Номер записи: 31
10-03-2022 дата публикации

DEVICE AND METHOD FOR THE CONTINUOUS HIGH-PRESSURE TREATMENT OF BULK MATERIAL AND USE THEREOF

Номер: US20220072447A1
Автор: HERBER Ansgar, STEINHAGEN Volkmar
Принадлежит:

An apparatus and method for high pressure treatment of bulk material by extraction and/or impregnation may involve high pressure treating bulk material in a high pressure treatment volume of a pressure vessel apparatus at a high pressure level, especially high pressure in the range from 40 to 1000 bar. The method comprises at least the three following step sequences that are each controllable individually: pressurization, high pressure treatment, and depressurization. The high pressure treatment is performed in a continuous manner in the high pressure treatment volume. The high pressure treatment volume or the entire pressure vessel apparatus is in a fixed arrangement during the high pressure treatment. The continuity of the high pressure treatment is ensured solely by means of the high pressure treatment volume. This especially enables engineering optimization of high pressure treatment processes, for example extraction. 116-. (canceled)17. A method for high pressure treatment of bulk material by extraction , wherein the bulk material is disposed in a high pressure treatment volume , which has cavities , of a pressure vessel apparatus and is treated at a high pressure level in a range from 40 to 1000 bar , wherein the method comprises:pressurizing the high pressure treatment volume;high pressure treating the bulk material in a continuous manner in the high pressure treatment volume, with continuity of the high pressure treating being ensured solely by way of the high pressure treatment volume, wherein the high pressure treatment volume or the pressure vessel apparatus is in a fixed arrangement during the high pressure treating, wherein the high pressure treating comprises continuously displacing the bulk material by translation of a translational actuator within the high pressure treatment volume; anddepressurizing the high pressure treatment volume.18. The method of wherein the translational actuator is a piston inserted into an end face of the high pressure ...

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Номер записи: 32
10-03-2022 дата публикации

APPARATUS AND METHOD FOR PREPARING AEROGEL BLANKET

Номер: US20220072734A1
Автор: BAEK Se Won, KANG Tae Gyeong, KIM Bong June
Принадлежит:

Provided is an apparatus for preparing an aerogel blanket, the apparatus comprising: a bobbin around which a blanket is wound; a body provided with a gelling tank in which the bobbin is accommodated; a driving member configured to allow the bobbin accommodated in the gelling tank to rotate; and a silica sol supply member configured to gelate the blanket as silica sol is injected into the gelling tank to impregnate the blanket rotating by the bobbin. 1. An apparatus for preparing an aerogel blanket , the apparatus comprising:a bobbin around which a blanket is wound;a main body provided with a gelling tank in which the bobbin is accommodated;a driving member configured to allow the bobbin accommodated in the gelling tank to rotate; anda silica sol supply member configured to deliver a silica sol to gelate the blanket as silica sol is injected into the gelling tank to impregnate the blanket rotating by the bobbin.2. The apparatus of claim 1 , wherein the bobbin comprises a winding rod around which the blanket is wound in a roll shape and a support plate coupled to each end of the winding rod to support a side portion of the blanket wound around the winding rod.3. The apparatus of claim 2 , wherein the winding rod comprises an inner portion comprising a hollow claim 2 , into which the silica sol injected into the gelling tank is introduced claim 2 , and an outer portion comprising a plurality of connection holes claim 2 , through which the silica sol introduced into the hollow is discharged to the outside of the winding rod so as to impregnate the blanket wound around the winding rod.4. The apparatus of claim 2 , wherein each support plate comprises a plurality of opening holes.5. The apparatus of claim 1 , wherein the gelling tank comprises a gelling chamber that is provided inside the gelling tank to accommodate the bobbin claim 1 , a discharge part provided at an outer lower end of the gelling tank and connected to the gelling chamber claim 1 , and an inflow part ...

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Номер записи: 33
21-02-2019 дата публикации

METHOD FOR PREPARING MODIFIED NANOCRYSTALLINE CELLULOSE

Номер: US20190055324A1
Автор: Grubbs Robert, Knopf Daniel, Orlov Alexander, Ramakrishnan Girish
Принадлежит: The Research Foundation for The State University of New York

The present disclosure provides methods for functionalizing the surfaces of cellulose nanoparticles. In embodiments, nanoparticles are aerosolized, and then passed through a flow reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. In other embodiments, the nanoparticles are aerosolized, and then passed through a plasma reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. Once the functionalized nanoparticles are produced, they may be combined with polymers to form polymer composites having both a polymer and the functionalized nanoparticles. Systems for producing these functionalized nanoparticles, coupled with downstream polymer processing equipment for forming the polymer composites, are also provided. 1. A method comprising:aerosolizing cellulose nanoparticles;introducing the aerosolized cellulose nanoparticles into an aerosol flow reactor;introducing gaseous silanes into the aerosol flow reactor;allowing the gaseous silanes to functionalize the surface of the cellulose nanoparticles as they pass through the aerosol flow reactor to produce functionalized cellulose nanoparticles; andcollecting the functionalized cellulose nanoparticles.2. The method of claim 1 , wherein the silane possesses functional groups selected from the group consisting of amino claim 1 , vinyl claim 1 , methacryl claim 1 , mercapto claim 1 , glycidoxy claim 1 , chloro claim 1 , azide claim 1 , alkyl claim 1 , and combinations thereof.3. The method of claim 1 , wherein the silane is selected from the group consisting of 3-aminopropyl triethoxysilane claim 1 , vinyltrimethoxysilane claim 1 , 3-methacryloxypropyltrimethoxysilane claim 1 , γ-mercapto propyltriethoxysilane claim 1 , glycidoxypropyltrimethoxy-silane claim 1 , dichlorosilane claim 1 , vinyltrimethoxysilane grafted polypropylene claim 1 , vinyltrimethoxysilane grafted polyethylene claim 1 , azidotrimethylsilane claim 1 , ...

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Номер записи: 34
21-02-2019 дата публикации

Method of preparing aerogels/nonwoven composites fireproof and heat-insulating materials

Номер: US20190055374A1
Автор: CHANG Chih-Shun, Chen Jean-Hong, Chen Shiu-Shiu, Li Chin-Chih
Принадлежит:

A method of preparing aerogels/nonwoven composites fireproof and heat-insulating materials with a hydrophobic or hydrophilic surfaces and includes steps as follows. A mixture solution in which alkoxysilane, silicones and silane coupling agents are mixed and stirred is instilled by acidic catalysts for a hydrolysis reaction during which a silane coupling agent solution is added for continuous stirring; a hydrous alkali catalytic (anhydrous alkali catalytic) organic solution is added in the mixture solution for a condensation reaction and development of a “silicones-silica aerogels-silane coupling agents” aerogel mixture solution; a non-woven felt is impregnated with the mixture solution for development of soft hydrophobic (hydrophilic) aerogels/nonwoven composites fireproof and heat-insulating materials after curing and natural drying. The aerogels/nonwoven composites materials with softness and surface hydrophobicity/hydrophilicity available in mass production are applicable to thermal-insulating materials for high-temp industrial facilities or indoor heat-insulating and fireproof panels of a building structure. 1. A method of preparing aerogels/nonwoven composites fireproof and heat-insulating materials with a hydrophobic or hydrophilic surfaces , comprising steps as follows:a mixture step: wherein a mixture solution in which alkoxysilane, silicones and silane coupling agents are mixed is stirred, and the molar ratio of alkoxysilane to silicones to silane coupling agents is kept at between 1.0:0.0001:0.0001 and 1.0:0.65:1.0;a hydrolysis step: wherein hydrous acidic catalysts are instilled into the mixture solution in the mixture step, for inducing a hydrolysis reaction during which a silane coupling agent solution is added and continuously stirred for production of a “silicones-silica aerogels-silane coupling agents” aerogel mixture solution, and the acidic catalyst is selected from either sulfuric acid, phosphoric acid, nitric acid or hydrochloric acid or a ...

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Номер записи: 35
17-03-2022 дата публикации

AEROGEL BLANKET AND METHOD FOR MANUFACTURING SAME

Номер: US20220080377A1
Автор: BAEK Se Won, KANG Tae Gyeong, KIM Bong June
Принадлежит:

Provided is a method for manufacturing an aerogel blanket, and an aerogel blanket having uniform thermal conductivity inside a substrate, wherein the method is capable of simplifying manufacturing equipment by performing gelation while rotating a substrate for a blanket into which a catalyzed sol is impregnated, improving manufacturing efficiency by controlling manufacturing time regardless of the thickness of the aerogel blanket, and improving thermal conductivity by uniformly forming aerogel in the substrate for a blanket. 1. A method for manufacturing an aerogel blanket , the method comprising:1) introducing a catalyzed sol and a substrate for a blanket into a reaction vessel to impregnate the catalyzed sol into the substrate for a blanket; and2) rotating the substrate for a blanket into which the catalyzed sol is impregnated to perform gelation.2. The method of claim 1 , wherein the substrate for a blanket is introduced into the reaction vessel in the state of being wound on a bobbin claim 1 , and the bobbin is rotated to rotate the substrate for a blanket into which the catalyzed sol is impregnated.3. The method of claim 1 , wherein the introducing of a catalyzed sol and a substrate for a blanket in Step 1) is performed by any one method selected from among a method for introducing a substrate for a blanket into a reaction vessel and then introducing a catalyzed sol claim 1 , a method for introducing a catalyzed sol into a reaction vessel and then introducing a substrate for a blanket claim 1 , and a method for introducing a substrate for a blanket while introducing a catalyzed sol into a reaction vessel.4. The method of claim 1 , wherein the impregnation in Step 1) is performed by rotating the substrate for a blanket.5. The method of claim 1 , wherein Step 2) is performed before the completion of Step 1) claim 1 , and when Step 2) is performed before the completion of Step 1) claim 1 , all of the catalyzed sol is introduced into the reaction vessel until the ...

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Номер записи: 36
28-02-2019 дата публикации

SILICA AEROGEL BLANKET FOR ULTRA-HIGH TEMPERATURE, METHOD FOR PRODUCING SAME, AND METHOD FOR CONSTRUCTING SAME

Номер: US20190062167A1
Автор: Kim Mi Ri, Lee Je Kyun
Принадлежит: LG CHEM, LTD.

The present invention relates to a silica aerogel blanket for ultra-high temperature, a method for producing the same, and a method for constructing the same. More specifically, the present invention provides a method for producing a silica aerogel blanket, the method capable of suppressing the generation of a bad odor during construction by including a step of heat treatment after producing a hydrophobic silica aerogel blanket so as to remove a volatile organic compound (VOC), a silica aerogel blanket produced thereby, and a method for constructing a silica aerogel blanket for ultra-high temperature, the method capable of suppressing the generation of a bad odor during the construction of the silica aerogel blanket produced by the above-mentioned production method on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air. 1. A method for producing a silica aerogel blanket , the method comprising the steps of:1) preparing a silica sol by mixing a silica precursor, alcohol, and an acidic aqueous solution;2) producing a silica gel composite by adding a basic catalyst to the silica sol, and then depositing the silica sol added with the basic catalyst in a base material for blanket;3) producing a hydrophobic silica aerogel by aging, surface modifying, and drying the silica gel composite; and4) heat treating the hydrophobic silica aerogel.2. The method of claim 1 , wherein the acidic aqueous solution of Step 1) comprises one or more kinds of acid catalysts selected from the group consisting of nitric acid claim 1 , hydrochloric acid claim 1 , acetic acid claim 1 , sulfuric acid claim 1 , and hydrofluoric acid.3. The method of claim 1 , wherein the basic catalyst of Step 2) comprises one or more selected from the group consisting of ammonium hydroxide (NHOH) claim 1 , tetramethylammonium hydroxide (TMAH) claim 1 , tetraethylammonium hydroxide (TEAH) claim 1 , tetrapropylammonium ...

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Номер записи: 37
17-03-2022 дата публикации

HEAT RESISTANT AEROGEL MATERIALS

Номер: US20220081532A1
Автор: deKrafft Kathryn E., Dong Wenting, Evans Owen R., Gould George L., Melnikova Irene, Mihalcik David J., Zafiropoulos Nicholas A.
Принадлежит: ASPEN AEROGELS, INC.

The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition. 1. A reinforced hydrophobic aerogel composition comprising a silica-based framework , the silica-based framework comprising hydrophobic bound silicon; wherein the reinforced hydrophobic aerogel composition has the following properties: i) liquid water uptake of 40 wt % or less; and ii) heat of combustion of less than 717 cal/g.2. The reinforced hydrophobic aerogel composition of claim 1 , further comprising a fiber reinforcement material or a sheet of the fiber reinforcement material.3. The reinforced hydrophobic aerogel composition of claim 1 , further comprising a reinforcement material that is non-fibrous.4. The reinforced hydrophobic aerogel composition of claim 1 , further comprising a foam reinforcement material.5. The reinforced hydrophobic aerogel composition of claim 1 , wherein the reinforced hydrophobic aerogel composition has a heat of combustion of from 250 cal/g to 717 cal/g.6. The reinforced hydrophobic aerogel composition of claim 5 , wherein the reinforced hydrophobic aerogel composition has a heat of combustion of from 460 cal/g to 717 cal/g.7. The reinforced hydrophobic aerogel composition of claim 5 , wherein the reinforced hydrophobic aerogel composition has a heat of combustion of from 600 cal/g to 717 cal/g.8. The reinforced hydrophobic aerogel composition of claim 1 , wherein the reinforced hydrophobic aerogel composition has a ...

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Номер записи: 38
27-02-2020 дата публикации

AEROGEL COMPOSITIONS FOR HIGH TEMPERATURE APPLICATIONS

Номер: US20200061569A1
Автор: Abeles, Evans Owen R., JR. Jon C., Nebo Jon F., Rhine Wendell E.
Принадлежит: ASPEN AEROGELS, INC.

Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described. 1. An aerogel composition comprising (i) a fibrous structure , (ii) a silica aerogel material within the fibrous structure , and (iii) fillers , the fillers comprising hydroxides , borates , silicates , carbonates , oxides , or combinations thereof , at least a portion of the fillers being in hydrated form.2. The aerogel composition of claim 1 , wherein the fillers comprise at least a smoke suppressing filler.3. The aerogel composition of claim 1 , wherein the composition is hydrophobic.4. The aerogel composition of claim 3 , wherein the silica aerogel material includes covalently attached hydrophobic materials.5. The aerogel composition of claim 1 , wherein a majority of the filler is in hydrated form.6. The aerogel compositions of claim 1 , wherein the hydroxides comprise metal hydroxides.7. The aerogel composition of claim 6 , wherein the metal hydroxides comprise magnesium hydroxide.8. The aerogel composition of claim 6 , wherein the metal hydroxides comprise aluminum hydroxide.9. The aerogel composition of claim 6 , wherein the metal hydroxides are present at a level of 1 to 40 percent by weight of the aerogel composite.10. The aerogel composition of claim 1 , wherein the borates comprise zinc borate.11. The aerogel composition of claim 10 , wherein the zinc borate is present at a level of 1 to 40 percent by weight of the aerogel composite.12. The aerogel composition of claim 1 , wherein the silicates comprise aluminum silicate.13. The aerogel composition of claim 12 , wherein the aluminum silicate is present at a level of less than 50 percent by weight of the aerogel composite.14. The aerogel composition of claim 12 , wherein the ...

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Номер записи: 39
27-02-2020 дата публикации

Aerosol Generator, In Particular Soot Generator

Номер: US20200061572A1
Автор: Beck Harald
Принадлежит:

An aerosol generator, in particular a soot generator. The aerosol generator includes a combustion chamber, in which fuel can be burned with an oxidizing agent in at least one soot-particle-creating flame, and a fluid feeding device for feeding fuel and an oxidizing agent into the combustion chamber. The fluid feeding device has at least three feed lines, the outlet-side end portions of which run parallel, so that at least three fluids of different types, in particular gases, can be introduced into the combustion chamber unmixed and in a parallel inflow direction. 1. An aerosol generator , configured as a soot generator , comprisinga combustion chamber, in which fuel can be burned with an oxidizing agent in at least one soot-particle-creating flame;a fluid feeding device for feeding the fuel and the oxidizing agent into the combustion chamber;wherein the fluid feeding device has at least three feed lines each feed line having a respective end portion, the respective end portions of each feed line are arranged parallel to each other so that at least three fluids of different types can be introduced into the combustion chamber unmixed and in a parallel inflow direction.2. The aerosol generator according to claim 1 , wherein the respective end portions of the at least three feed lines are arranged coaxially in one another.3. The aerosol generator according to claim 1 , wherein at least one ofthe respective end portions are arranged lying parallel next to one another; andthe respective end portions are arranged parallel next to one another to form an arrangement of lines with a packing density that is as great as possible.4. The aerosol generator according to claim 1 , wherein the fluid feeding device has one of:at least four feed lines;four feed lines; andseven feed lines.5. The aerosol generator according to claim 1 , wherein respective outlets of the feed lines are located at a same height with respect to an inflow direction.6. The aerosol generator according to claim ...

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Номер записи: 40
27-02-2020 дата публикации

Dryer For Preparation of Dry Nanoparticles

Номер: US20200064065A1
Автор: Der Leon, Kosarzycki Roman, Maglieri Grace, Van Keuren Edward
Принадлежит: GEORGETOWN UNIVERSITY

A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions. 1. A process for drying liquid-suspended nanoparticles comprising:receiving a liquid solution into a closed tubing system, wherein the liquid solution contains suspended nanoparticles therein;misting the liquid solution into an aerosol containing droplets, wherein the droplets contain liquid and suspended nanoparticles;heating a first portion of the closed tubing system, creating an updraft therein, and causing the aerosol to move through at least a second portion of the closed tubing system and further causing the evaporation of at least some liquid from the droplets in the aerosol, thereby leaving dried nanoparticles; andcollecting, by an electrostatic collector comprised of one or more electrodes located in a third portion of the closed tubing system, the dried nanoparticles at the one or more electrodes of the electrostatic collector as the aerosol flows therethrough.2. The process according to claim 1 , wherein the heating a first portion of the closed tubing system further comprises heating to a temperature within the closed tubing system equal to or less than 50 degrees Celsius.3. The process according to claim 1 , further comprising recirculating any remaining aerosol through the closed tubing at least one additional time and collecting any additional dried nanoparticles therefrom at the electrostatic collector.4. The process according to claim 1 , further comprising receiving any remaining aerosol in a fourth portion of the closed tubing for cooling therein wherein any additional moisture generated from cooling is caught in a moisture trap at the end of the fourth portion of the closed tubing.5. The process according to claim 3 , further comprising receiving any remaining aerosol in a fourth portion ...

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Номер записи: 41
07-03-2019 дата публикации

Carbogel anode materials and method for their preperation

Номер: US20190071311A1
Автор: Agnieszka CHOJNACKA, Marcin Molenda, Michal SWIETOSLAWSKI, Monika BAKIERSKA
Принадлежит: UNIWERSYTET JAGIELLONSKI

Carbogel anode materials and method for their preparation are disclosed. The described carbogels exhibit, at a temperature of 20° C., an electrical conductance of at least 0.5 S/cm and a reversible electrochemical capacity in relation to lithium of at least 350 mAh/g under a C/2 discharge current, enabling their use for preparation of anode materials, particularly those intended for preparation of lithium-ion cells.

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Номер записи: 42
16-03-2017 дата публикации

Aerosol Generator, In Particular Soot Generator

Номер: US20170073230A1
Автор: Beck Harald
Принадлежит:

An aerosol generator, in particular a soot generator. The aerosol generator includes a combustion chamber, in which fuel can be burned with an oxidizing agent in at least one soot-particle-creating flame, and a fluid feeding device for feeding fuel and an oxidizing agent into the combustion chamber. The fluid feeding device has at least three feed lines, the outlet-side end portions of which run parallel, so that at least three fluids of different types, in particular gases, can be introduced into the combustion chamber unmixed and in a parallel inflow direction. 1. An aerosol generator , configured as a soot generator , comprisinga combustion chamber, in which fuel can be burned with an oxidizing agent in at least one soot-particle-creating flame;a fluid feeding device for feeding the fuel and the oxidizing agent into the combustion chamber;wherein the fluid feeding device has at least three feed lines each feed line having a respective end portion, the respective end portions of each feed line are arranged parallel to each other so that at least three fluids of different types can be introduced into the combustion chamber unmixed and in a parallel inflow direction.2. The aerosol generator according to claim 1 , wherein the respective end portions of the at least three feed lines are arranged coaxially in one another.3. The aerosol generator according to claim 1 , wherein at least one ofthe respective end portions are arranged lying parallel next to one another; andthe respective end portions are arranged parallel next to one another to form an arrangement of lines with a packing density that is as great as possible.4. The aerosol generator according to claim 1 , wherein the fluid feeding device has one of:at least four feed lines;four feed lines; andseven feed lines.5. The aerosol generator according to claim 1 , wherein respective outlets of the feed lines are located at a same height with respect to an inflow direction.6. The aerosol generator according to claim ...

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Номер записи: 43
05-03-2020 дата публикации

FIBER-REINFORCED ORGANIC POLYMER AEROGEL

Номер: US20200071481A1
Автор: FLETCHER Ashleigh, NASH David, POE Garrett, SILLARS Fiona, Taylor Stewart, WEBLEY Andrew, Yang Liu
Принадлежит:

Fiber-reinforced organic polymer aerogels, articles of manufacture and uses thereof are described. The reinforced aerogels include a fiber-reinforced organic polymer matrix having an at least bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm and a thermal conductivity of less than or equal to 30 mW/m·K at a temperature of 20° C. 1. A fiber-reinforced organic polymer aerogel comprising a non-fibrous organic polymer matrix and fibers comprised in the non-fibrous organic polymer matrix , wherein the aerogel comprises a thermal conductivity of less than or equal to 30 mW/m·K at a temperature of 20° C. and an at least bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm.2. The fiber-reinforced organic polymer aerogel of claim 1 , wherein the first mode of pores has an average pore size from 3 nm to 50 nm and the second mode of pores has an average pore size greater than 50 nm to 10 μm.3. The fiber-reinforced organic polymer aerogel of claim 1 , wherein the pore size distribution is at least trimodal.4. The fiber-reinforced organic polymer aerogel of claim 3 , wherein the first mode of pores has an average pore size of 3 nm to 65 nm claim 3 , the second mode of pores has an average pore size of 65 nm to 10 μm claim 3 , and the third mode of pores has an average pore size of greater than 1 micron (μm).5. The fiber-reinforced organic polymer aerogel of claim 1 , wherein the weight ratio of the organic polymer matrix to the fibers is 50 to 65.6. The fiber-reinforced organic polymer aerogel of claim 1 , wherein the non-fibrous organic polymer matrix comprises resorcinol formaldehyde claim 1 , phenol formaldehyde claim 1 , polyimide claim 1 , polyamine claim 1 , polyamide ...

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Номер записи: 44
18-03-2021 дата публикации

AEROGEL COMPOSITIONS WITH ENHANCED PERFORMANCE

Номер: US20210079300A1
Автор: Abeles, Evans Owen R., JR. Jon C., Nebo Jon F., Rhine Wendell E.
Принадлежит: ASPEN AEROGELS, INC.

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described. 1. A flexible aerogel blanket comprising an aerogel material , the aerogel material comprising an opacifying compound and hydrophobic materials covalently attached to a surface of the aerogel material , wherein the opacifying compound is embedded within the aerogel matrix.2. The aerogel composition of claim 1 , further comprising a fibrous structure.3. The aerogel composition of claim 2 , wherein the fibrous structure is in a woven claim 2 , nonwoven claim 2 , mat claim 2 , felt claim 2 , batting claim 2 , or a combination thereof.4. The aerogel composition of claim 1 , wherein the opacifying compound is selected from the group consisting of BC claim 1 , Diatomite claim 1 , Manganese ferrite claim 1 , MnO claim 1 , NiO claim 1 , SnO claim 1 , AgO claim 1 , BiO claim 1 , TiC claim 1 , WC claim 1 , carbon black claim 1 , titanium oxide claim 1 , iron titanium oxide claim 1 , zirconium silicate claim 1 , zirconium oxide claim 1 , iron (I) oxide claim 1 , iron (III) oxide claim 1 , manganese dioxide claim 1 , iron titanium oxide (ilmenite) claim 1 , chromium oxide claim 1 , silicon carbide claim 1 , and combinations thereof.5. The aerogel composition of claim 1 , wherein the opacifying compound comprises silicon carbide.6. The aerogel composition of claim 1 , further comprising a filler.7. The aerogel composition of claim 6 , wherein the filler comprises hydroxides claim 6 , borates claim 6 , silicates claim 6 , carbonates claim 6 , oxides claim 6 , or combinations thereof.8. The aerogel composition of claim 6 , at least a portion of the filler is in hydrated form.9. The aerogel composition of claim 6 , wherein a majority of the filler ...

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Номер записи: 45
14-03-2019 дата публикации

SILICA-TITANIA COMPOSITE AEROGEL PARTICLE, PHOTOCATALYST-FORMING COMPOSITION, AND PHOTOCATALYST

Номер: US20190076808A1
Автор: IWANAGA Takeshi, KADOKURA Yasuo, KASHIMA Yasunobu, NOZAKI Shunsuke, OKUNO Hiroyoshi, TAKEUCHI Sakae, YOSHIKAWA Hideaki, ZENITANI Yuka
Принадлежит: FUJI XEROX CO., LTD.

A silica-titania composite aerogel particle includes: a base particle including silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; and a surface layer present on the base particle and including a metal compound having a metal atom and a hydrocarbon group. The silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, has a BET specific surface area in the range of 200 m/g to 1,200 m/g, and has a value A in the range of 0.03 to 0.3. The value A is calculated by formula: A=(peak intensity of C—O bond+peak intensity of C═O bond)/(peak intensity of C—C bond+peak intensity of C═C bond). The peak intensity is obtained from a C is XPS spectrum. 1. A silica-titania composite aerogel particle comprising:a base particle that includes silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; anda surface layer that is present on the base particle and includes a metal compound having a metal atom and a hydrocarbon group,and the silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum,{'sup': 2', '2, 'has a BET specific surface area in a range of 200 m/g to 1,200 m/g, and has a value A being calculated by formula below in a range of 0.03 to 0.3A=(peak intensity of C—O bond+peak intensity of C═O bond)/(peak intensity of C—C bond+peak intensity of C═C bond)wherein the peak intensity is a value obtained from a C is XPS spectrum.2. The silica-titania composite aerogel particle according to claim 1 , wherein the silica-titania composite aerogel particle has absorption over an entire wavelength range of 400 nm to 800 nm in the visible absorption spectrum.3. The silica-titania composite aerogel particle according to claim 1 , wherein the silica-titania composite aerogel particles have a volume average particle size in a range of 0.1 μm to 3 μm and a volume particle size distribution in a range of 1.5 to 10. ...

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Номер записи: 46
24-03-2016 дата публикации

METHODS AND APPARATUSES FOR PRODUCING DISPERSED NANOSTRUCTURES

Номер: US20160082404A1
Автор: Pigos Elena
Принадлежит:

Methods and apparatuses are provided for the production of homogeneous dispersions of nanostructures within a matrix, which may be used as precursors of carbon-reinforced or boron nitride-reinforced composite materials. An apparatus for producing a nanostructure dispersion comprises a reactor and a mixing chamber, wherein the reactor is configured to produce an aerosol of nanostructures and is in fluidic communication with the mixing chamber. A matrix material is provided in the mixing chamber, and the aerosol of nanostructures can disperse into the matrix material to form a nanostructure dispersion. The apparatus may further comprise a matrix tank comprising a matrix material, wherein the matrix material is transferred to the mixing chamber. An aerosol of matrix particles may be produced from the matrix material and provided in the mixing chamber, so as to produce a fine dispersion of nanostructures in the matrix. The apparatus may be configured to continuously produce a nanostructure dispersion. 1. A method for producing a nanostructure dispersion , the method comprising:providing a reactor and a mixing chamber, wherein the reactor is in fluidic communication with the mixing chamber;producing an aerosol of nanostructures in the reactor;providing a matrix material in the mixing chamber;transferring the aerosol of nanostructures from the reactor to the mixing chamber; anddispersing the aerosol of nanostructures into the matrix material, thereby producing a nanostructure dispersion.2. The method of claim 1 , further comprising:producing an aerosol of matrix particles from the matrix material;providing the aerosol of matrix particles in the mixing chamber; anddispersing the aerosol of nanostructures into the matrix material comprising the aerosol of matrix particles, thereby producing a nanostructure dispersion.3. The method of any one of to claim 1 , wherein the matrix material is a solid powder or liquid.4. The method of any one of to claim 1 , wherein the aerosol ...

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Номер записи: 47
23-03-2017 дата публикации

METHODS AND SYSTEMS FOR THE SYNTHESIS OF NANOPARTICLES INCLUDING STRAINED NANOPARTICLES

Номер: US20170081199A1
Автор: Haag Michael Allen
Принадлежит: MSMH, LLC

A method for synthesizing nanoparticles includes aerosolizing a precursor solution in the presence of a flowing carrier gas to yield a reactant stream, the precursor solution comprising a volatile solvent and a nanoparticle precursor. The method further includes heating the reactant stream to a temperature above a boiling point of the volatile solvent to form a product stream comprising a plurality of nanoparticles, cooling the product stream, and passing the product stream through a collection liquid to collect the nanoparticles from the product stream. 1. A method for synthesizing nanoparticles comprising aerosolizing a precursor solution in the presence of a flowing carrier gas to yield a reactant stream , the precursor solution comprising a volatile solvent and a nanoparticle precursor;heating the reactant stream to a temperature above a boiling point of the volatile solvent to form a product stream comprising a plurality of nanoparticles;cooling the product stream; andpassing the product stream through a collection liquid to collect the nanoparticles from the product stream.2. The method of claim 1 , wherein the carrier gas is an inert gas.3. The method of claim 1 , wherein the volatile solvent comprises at least one selected from the group consisting of methanol claim 1 , ethanol claim 1 , isopropanol claim 1 , butanol claim 1 , and any combination thereof.4. The method of claim 1 , wherein the nanoparticle precursor comprises an organometallic compound.5. The method of claim 1 , wherein the nanoparticle precursor comprises a Group IV compound.6. The method of claim 1 , wherein the temperature above the boiling point of the volatile solvent is between about 500° C. and about 1200° C.7. The method of claim 1 , wherein heating the reactant stream involves passing the reactant stream through a tube furnace.8. The method of claim 1 , wherein the nanoparticles comprise a Group IV element and have a shifted crystal plane peak.9. The method of claim 1 , wherein the ...

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Номер записи: 48
23-03-2017 дата публикации

SEGMENTED FLEXIBLE GEL COMPOSITES AND RIGID PANELS MANUFACTURED THEREFROM

Номер: US20170081495A1
Автор: Evans Owen R., Melnikova Irene
Принадлежит:

The present invention describes various methods for manufacturing gel composite sheets using segmented fiber or foam reinforcements and gel precursors. Additionally, rigid panels manufactured from the resulting gel composites are also described. The gel composites are relatively flexible enough to be wound and when unwound, can be stretched flat and made into rigid panels using adhesives. 1. A process comprising the steps of:providing a segmented reinforcement sheet comprising a segmented fiber reinforcement sheet or a segmented open-cell foam reinforcement sheet;combining the segmented reinforcement sheet with a gel precursor;gelling the gel precursor in the segmented reinforcement sheet to make a segmented reinforced gel composite sheet;anddrying the segmented reinforced gel composite sheet to make a reinforced aerogel composite sheet.2. The process of further comprising the step of applying an adhesive to at least one face of the reinforced aerogel composite sheet and attaching it to another planar material.3. The process of claim 1 , further comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'providing the reinforced aerogel composite sheet of with at least two major surfaces and multiple segmented cross-sectional surfaces;'}applying an adhesive to at least one surface of said reinforced aerogel composite sheet; andattaching the reinforced aerogel composite sheet to another aerogel composite sheet.4. (canceled)5. The process of wherein the segmented reinforcement sheet has a facing layer or sheet attached to it.6. The process of wherein facing layer comprises fibers.7. The process of wherein the segmented reinforcement sheet comprises a segmented fiber reinforcement sheet which comprises non-continuous fibers.8. The process of further comprising the step of incorporating additives selected from the group consisting of titanium dioxide claim 1 , iron oxides claim 1 , carbon black claim 1 , graphite claim 1 , aluminum hydroxide claim 1 , ...

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Номер записи: 49
12-03-2020 дата публикации

SYSTEM AND METHOD FOR FIBER REINFORCED AEROGEL INSULATION

Номер: US20200080681A1
Автор: Fay Ralph Michael, Kukatin Stanislav
Принадлежит:

A fiber reinforced insulation product may include a first layer of fiber reinforced aerogel composite and a second layer of fiber reinforced aerogel composite. The first layer may include entangled fibers, aerogel particles dispersed within the entangled fibers, and a first binder that may form a first binding framework that bonds the entangled fibers and the aerogel particles of the first layer together. The second layer may include entangled fibers, aerogel particles dispersed within the entangled fibers, and a second binder that may form a second binding framework that bonds the entangled fibers and the aerogel particles of the second layer together. The fiber reinforced insulation product may further include a third binder that may form a third binding framework that bonds the first layer and the second layer together. The third binder may be dispersed throughout the first layer and the second layer. 1. A fiber reinforced insulation product for insulating pipes , wherein the fiber reinforced insulation product comprises:a first layer of fiber reinforced aerogel composite, the first layer including a plurality of entangled fibers, aerogel particles that are dispersed within the plurality of entangled fibers, and a first binder that forms a first binding framework that bonds the plurality of entangled fibers and the aerogel particles of the first layer together;a second layer of fiber reinforced aerogel composite, the second layer including a plurality of entangled fibers, aerogel particles that are dispersed within the plurality of entangled fibers, and a second binder that forms a second binding framework that bonds the plurality of entangled fibers and the aerogel particles of the second layer together; anda third binder that forms a third binding framework that bonds the first layer and the second layer together;wherein the third binder is dispersed throughout the first layer and the second layer.2. The fiber reinforced insulation product for insulating pipes ...

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Номер записи: 50
02-04-2015 дата публикации

Practical method of producing an aerogel composite continuous thin film thermoelectric semiconductor material

Номер: US20150093850A1
Автор: The Pen
Принадлежит: Individual

A method is disclosed of constructing a composite material structure, comprised of an aerogel precursor foundation, which is then overlaid throughout its interior with an even and continuous thin layer film of doped thermoelectric semiconductor such that electrical current is transmitted as a quantum surface phenomena, while the cross-section for thermal conductivity is kept low, with the aerogel itself dissipating that thermal conductivity. In one preferred embodiment this is achieved using a modified successive ionic layer adsorption and reaction in the liquid phase.

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Номер записи: 51
01-04-2021 дата публикации

SOLAR THERMAL AEROGEL RECEIVER AND MATERIALS THEREFOR

Номер: US20210094834A1
Автор: Bhatia Bikramjit S., Bierman David M., Boriskina Svetlana, Chen Gang, COOPER Thomas A., Huang Xiaopeng, Loomis James, Strobach Elise M., Wang Evelyn N., Weinstein Lee A., Yang Sungwoo, Zhao Lin
Принадлежит:

A silica aerogel having a mean pore size less than 5 nm with a standard deviation of 3 nm. The silica aerogel may have greater than 95% solar-weighted transmittance at a thickness of 8 mm for wavelengths in the range of 250 nm to 2500 nm, and a 400° C. black-body weighted specific extinction coefficient of greater than 8 m/kg for wavelengths of 1.5 μm to 15 μm. Silica aerogel synthesis methods are described. A solar thermal aerogel receiver (STAR) may include an opaque frame defining an opening, an aerogel layer disposed in the opaque frame, with at least a portion of the aerogel layer being proximate the opening, and a heat transfer fluid pipe in thermal contact with and proximate the aerogel layer. A concentrating solar energy system may include a STAR and at least one reflector to direct sunlight to an opening in the STAR. 1. An aerogel material comprising:silica aerogel defining a porous material with pores having a mean radius of less than 5 nm with a standard deviation of 3 nm.2. The aerogel material of claim 1 , wherein the aerogel material comprises percent solids of less than 10%.3. The aerogel material of claim 1 , wherein the aerogel material comprises a mean particle size of 1.3 nm.4. The aerogel material of claim 1 , wherein the silica aerogel has a solar absorptance of >0.9 and IR emittance of <0.3 at a temperature of 400° C. when in thermal contact with a black absorber.536.-. (canceled) This application is a divisional of application Ser. No. 16/079,172 filed on Aug. 23, 2018 which is the national stage of International (PCT) Patent Application No. PCT/2017/019415, entitled “Solar Thermal Aerogel Receiver and Materials Therefor” and filed on Feb. 24, 2017, which claims priority to and the benefit of U.S. Provisional Patent Application No. 62/299,090, entitled “Solar Thermal Aerogel Receiver (STAR)” and filed Feb. 24, 2016, the entire contents of each of which are incorporated by reference herein.This invention was made with Government support under ...

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Номер записи: 52
12-05-2022 дата публикации

METHOD OF PREPARING METAL OXIDE-SILICA COMPOSITE AEROGEL AND METAL OXIDE-SILICA COMPOSITE AEROGEL PREPARED BY THE SAME

Номер: US20220144652A1
Автор: Kim Jong hun, Lee Je Kyun
Принадлежит:

Provided is a method of preparing a metal oxide-silica composite aerogel and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method comprises adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3). 1. A metal oxide-silica composite aerogel , having:a full width at half maximum (FWHM) value of 34 nm or less in a pore diameter-dependent distribution, and{'sup': '3', 'an effective pore volume of 0.9 cm/g or more.'}2. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide-silica composite aerogel has a single particle effective density of 0.7 g/ml or less.3. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide-silica composite aerogel is in which the metal oxide is doped with silica.4. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide comprises one or more metals selected from the group consisting of alkali metals claim 1 , alkaline earth metals claim 1 , lanthanides claim 1 , actinides claim 1 , transition metals claim 1 , and metals in Group 13 (IIIA).5. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide is magnesium oxide claim 1 , calcium oxide claim 1 , or a mixture thereof6. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide-silica composite aerogel has the full width at half maximum (FWHM) value of 0.1 to 5 nm in a pore diameter-dependent distribution.7. The metal oxide-silica composite aerogel according to claim 1 , wherein the metal oxide-silica composite aerogel has the effective pore volume of 1.3 to 2.5 cm/g8. The metal oxide-silica composite aerogel ...

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Номер записи: 53
06-04-2017 дата публикации

HEAT INSULATION COMPOSITES HAVING AEROGEL WITH PRESERVING AEROGEL PORES USING VOLATILE SOLVENT AND METHOD FOR PREPARING THE SAME

Номер: US20170096548A1
Автор: JUNG Yong Chae, Kim Hyun-Soo, KIM Jaewoo, KIM Seong Yun, LEE Hun-su, LIM Soon Ho, YANG Cheol-Min, YOUN Sang Jun, YU Jaesang
Принадлежит: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Provided is an aerogel-containing heat insulation composite obtained by providing a volatile material to the pores of the aerogel, blending the aerogel with a polymer resin, particularly a flexible polymer resin, to form a composite, and removing the volatile material. Thus, it is possible to prevent a decline of the porosity of the aerogel caused by infiltration and impregnation of the pores of the aerogel with the resin. As a result, the aerogel-containing heat insulation composite, particularly containing a high content of aerogel, may retain the heat insulation property of the aerogel as well as the flexibility of the plastic material. 1. An aerogel-containing heat insulation composite comprising an aerogel and a polymer resin , wherein the pores of the aerogel are preserved through treatment with a volatile material by providing the volatile material to the pores of the aerogel and removing the volatile material.2. The aerogel-containing heat insulation composite according to claim 1 , wherein the polymer resin is a flexible polymer resin claim 1 , and the heat insulation composite is a flexible heat insulation composite.3. The aerogel-containing heat insulation composite according to claim 2 , which retains flexibility as compared to the composite having no aerogel incorporated thereto.4. The aerogel-containing heat insulation composite according to claim 1 , wherein the pores of the aerogel are prevented from infiltration of the polymer resin by virtue of the volatile material provided in the pores.5. The aerogel-containing heat insulation composite according to claim 1 , which has a pore volume or porosity increased according to an increase in aerogel content.6. The aerogel-containing heat insulation composite according to claim 1 , which has a thermal conductivity decreased according to an increase in aerogel content.7. The aerogel-containing heat insulation composite according to claim 1 , wherein the aerogel in the composite retains its pore volume to at ...

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Номер записи: 54
14-04-2016 дата публикации

NANOPOROUS METAL-CARBON COMPOSITE

Номер: US20160101398A1
Автор: Charnvanichborikarn Supakit, Colvin Jeffrey, Felter Thomas, Kim Sangil, Kucheyev Sergei, Merrill Matthew, Orme Christine, Satcher Joe, WORSLEY Marcus A.
Принадлежит:

Described here is a metal-carbon composite, comprising (a) a porous three-dimensional scaffold comprising one or more of carbon nanotubes, graphene and graphene oxide, and (b) metal nanoparticles disposed on said porous scaffold, wherein the metal-carbon composite has a density of 1 g/cmor less, and wherein the metal nanoparticles account for 1 wt. % or more of the metal-carbon composite. Also described are methods for making the metal-carbon composite.

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Номер записи: 55
23-04-2015 дата публикации

Method for preparing bulk c-aln composite aerogel with high strength and high temperature resistance

Номер: US20150108389A1
Автор: Sheng Cui, Xiaodong Shen, Ya Zhong
Принадлежит: NANJING TECH UNIVERSITY

Provided is a method for preparing a bulk C—AlN composite aerogel with high strength and high temperature resistance, which includes: evenly stirring aluminum chloride crystals, water, ethanol and epoxy propane, to obtain a clear aluminum oxide sol solution, then adding formaldehyde and resorcinol to the solution and performing even stirring, to obtain an RF/Al 2 O 3 composite aerogel sol solution, leaving the gel to stand, treating the sample by using a supercritical CO 2 drying method, and finally heat-treating the sample at a high temperature under the condition of nitrogen, to obtain the bulk C—AlN composite aerogel with high strength and high temperature resistance. The composite aerogel prepared by using this method has advantages of high integrity, high specific surface area, intact structure, low heat conductivity, low density, and high strength.

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Номер записи: 56
04-04-2019 дата публикации

SOLAR THERMAL AEROGEL RECEIVER AND MATERIALS THEREFOR

Номер: US20190100439A1
Автор: Bhatia Bikramjit S., Bierman David M., Boriskina Svetlana, Chen Gang, COOPER Thomas A., Huang Xiaopeng, Loomis James, Strobach Elise M., Wang Evelyn N., Weinstein Lee A., Yang Sungwoo, Zhao Lin
Принадлежит:

A silica aerogel having a mean pore size less than 5 nm with a standard deviation of 3 nm. The silica aerogel may have greater than 95% solar-weighted transmittance at a thickness of 8 mm for wavelengths in the range of 250 nm to 2500 nm, and a 400° C. black-body weighted specific extinction coefficient of greater than 8 m/kg for wavelengths of 1.5 μm to 15 μm. Silica aerogel synthesis methods are described. A solar thermal aerogel receiver (STAR) may include an opaque frame defining an opening, an aerogel layer disposed in the opaque frame, with at least a portion of the aerogel layer being proximate the opening, and a heat transfer fluid pipe in thermal contact with and proximate the aerogel layer. A concentrating solar energy system may include a STAR and at least one reflector to direct sunlight to an opening in the STAR. 1. An aerogel material comprising:silica aerogel defining a porous material with pores having a mean radius of less than 5 nm with a standard deviation of 3 nm.2. The aerogel material of claim 1 , wherein the aerogel material comprises percent solids of less than 10%.3. The aerogel material of claim 1 , wherein the aerogel material comprises a mean particle size of 1.3 nm.4. The aerogel material of claim 1 , wherein the silica aerogel has a solar absorptance of >0.9 and IR emittance of <0.3 at a temperature of 400° C. when in thermal contact with a black absorber.5. An aerogel material comprising:{'sup': '2', 'silica aerogel having (i) greater than 95% solar-weighted transmittance at a thickness of 8 mm for wavelengths selected from the range of 250 nm to 2500 nm; and (ii) a 400° C. black-body weighted specific extinction coefficient of greater than 8 m/kg for wavelengths selected from the range of 1.5 μm to 15 μm.'}6. The aerogel material of claim 5 , wherein the silica aerogel has a thermal conductivity of less than 0.025 W/mK at room temperature and less than 0.1 W/mK at 400° C.7. A method for forming a silica aerogel claim 5 , the method ...

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Номер записи: 57
04-04-2019 дата публикации

SOL COMPOSITION, AEROGEL COMPOSITE, SUPPORT MEMBER PROVIDED WITH AEROGEL COMPOSITE, AND HEAT INSULATOR

Номер: US20190100630A1
Автор: IWANAGA Kouta, KOTAKE Tomohiko, Makino Tatsuya, MIYATAKE Masato, TAKAYASU Satoshi
Принадлежит:

The present invention relates to a sol composition for forming an aerogel composite, wherein the sol composition is a sol composition with a sufficient pot life for forming an aerogel composite superior in thermal insulation and flexibility, and comprises: at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group or a condensable functional group and a hydrolysis product of the silicon compound having a hydrolyzable functional group; and a silica particle having an average primary particle diameter of 5 to 300 nm or a specific surface area of 10 to 600 m/g. 1. A sol composition for forming an aerogel composite , the sol composition comprising:at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group or a condensable functional group and a hydrolysis product of the silicon compound having a hydrolyzable functional group; and{'sup': '2', 'a silica particle having an average primary particle diameter of 5 to 300 nm, or having a specific surface area of 10 to 600 m/g.'}2. (canceled)3. The sol composition according to claim 1 , wherein the silicon compound further comprises a polysiloxane compound having a hydrolyzable functional group or a condensable functional group.5. An aerogel composite as a dried product of a wet gel claim 1 , wherein the wet gel is a condensate of the sol composition according to .6. An aerogel composite comprising:an aerogel component; and{'sup': '2', 'a silica particle having an average primary particle diameter of 5 to 300 nm, or having a specific surface area of 10 to 600 m/g.'}7. (canceled)8. The aerogel composite according to claim 6 , having:a three-dimensional network skeleton formed of the aerogel component and the silica particle; anda pore.9. The aerogel composite according to claim 5 , wherein the silica particle is an amorphous silica particle.12. A support member provided with an aerogel composite claim 5 , the support member ...

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Номер записи: 58
19-04-2018 дата публикации

Dryer For Preparation of Dry Nanoparticles

Номер: US20180106536A1
Автор: Der Leon, Kosarzycki Roman, Maglieri Grace, Van Keuren Edward
Принадлежит: GEORGETOWN UNIVERSITY

A system for producing dry nanoparticles from a liquid includes a closed tubing system which incorporates a mister, heater and an electrostatic collector therein. The system is able to produce dry nanoparticles from liquid-suspensions and from solvent solutions. 1. A system for drying liquid-suspended nanoparticles comprising:a closed tubing system including an access port for receiving a liquid solution therein, wherein the liquid solution contains suspended nanoparticles therein;a mister for transforming the liquid solution into an aerosol containing droplets, wherein the droplets contain liquid and suspended nanoparticles;a heater for heating a first portion of the closed tubing system, creating an updraft therein, and causing the aerosol to move through at least a second portion of the closed tubing system and further causing the evaporation of at least some liquid from the droplets in the aerosol, thereby leaving dried nanoparticles; andan electrostatic collector comprised of one or more electrodes located in a third portion of the closed tubing system, wherein the dried nanoparticles are collected at the one or more electrodes of the electrostatic collector as the aerosol flows therethrough.2. The system according to claim 1 , wherein the mister is selected from the group consisting of a nebulizer claim 1 , an atomizer and an electrospray device.3. The system according to claim 2 , wherein the mister produces aerosol droplets with sizes on the order of approximately 0.1 to 100 microns.4. The system according to claim 1 , wherein the heater is selected from the group consisting of an infrared lamp claim 1 , a hotplate and an electrical heating element.5. The system according to claim 4 , wherein the temperature within the closed tubing system does not exceed 50 degrees Celsius.6. The system according to claim 1 , wherein an approximate length of the closed tubing system from the mister to the electrostatic collector is at least 1 meter.7. The system according ...

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Номер записи: 59
29-04-2021 дата публикации

FIBER-REINFORCED ORGANIC POLYMER AEROGEL

Номер: US20210122896A1
Автор: FLETCHER Ashleigh, NASH David, POE Garrett, SILLARS Fiona, Taylor Stewart, WEBLEY Andrew, Yang Liu
Принадлежит:

Fiber-reinforced organic polymer aerogels, articles of manufacture and uses thereof are described. The reinforced aerogels include a fiber-reinforced organic polymer matrix having an at least bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm and a thermal conductivity of less than or equal to 30 mW/m·K at a temperature of 20° C. 144-. (canceled)45. A fiber-reinforced composite comprising a porous organic polymer matrix and fibers comprised in the porous organic polymer matrix ,wherein the composite comprises a thermal conductivity of less than or equal to 30 mW/m·K at a temperature of 20° C. and an at least bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm, and wherein the fibers have:{'sub': '2', 'sup': '2', '(a) an average filament cross sectional area of 25 μmto 40,000 μm; and'}(b) an average length of 20 mm to 100 mm.46. The fiber-reinforced composite of claim 45 , wherein the first mode of pores has an average pore size from 3 nm to 50 nm and the second mode of pores has an average pore size greater than 50 nm to 10 μm.47. The fiber-reinforced composite of claim 45 , comprising an at least trimodal pore size distribution.48. The fiber-reinforced composite of claim 47 , wherein the first mode of pores has an average pore size of 3 nm to 65 nm claim 47 , the second mode of pores has an average pore size of 65 nm to 10 μm claim 47 , and the third mode of pores has an average pore size of greater than 1 micron (μm).49. The fiber-reinforced composite of claim 45 , wherein a weight ratio of the porous organic polymer matrix to the fibers is 50 to 65.50. The fiber-reinforced composite of claim 45 , wherein the porous organic polymer matrix comprises resorcinol ...

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Номер записи: 60
11-04-2019 дата публикации

Gas dispersion manufacture of nanoparticulates, and nanoparticulate-containing products and processing thereof

Номер: US20190105804A1
Автор: Aaron D. Stump, David E. Dericotte, Karel Vanheusden, Klaus Kunze, Mark J. Hampden-Smith, Toivo T. Kodas
Принадлежит: SICPA HOLDING SA

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material.

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Номер записи: 61
28-04-2016 дата публикации

METHOD AND APPARATUS FOR PREPARING AEROGEL BY DRYING UNDER REDUCED PRESSURE

Номер: US20160114304A1
Автор: LI GUANGWU
Принадлежит:

A method and an apparatus for preparing aerogel by drying under reduced pressure. The gel to be dried is placed into a sealed drying apparatus which can be depressurized by air extraction or/and can be heated to raise the temperature. The methods of reducing pressure by air extraction or/and raising temperature are acted upon the water and solvents within the aerogel to be dried, and an outward force is thus generated for the water and solvents to be volatilized outwards. By controlling the rates of reducing pressure by air extraction or/and raising temperature, the outward force is allowed to be equal to or close to the inward capillary force, such that the pores of the gel may not be collapsed or cracked. At the same time, drying is carried out continuously, and finally the interior water and solvents are removed completely. 1. A method for preparing aerogel by drying under reduced pressure is that: the gel to be dried is placed into a sealed drying apparatus which can be depressurized by air extraction or/and heated to raise temperature; the method of depressurization by air extraction , that is , gradient depressurization or slow depressurization , or temperature-raising , that is , gradient temperature-raising or slow temperature-raising , or controlling the depressurization by air extraction and the temperature-raising in the meantime is acted upon the water and solvents within the aerogel to be dried , and outward force is thus generated for the water and solvents to be volatilized outwards; by controlling the rates of reducing pressure by air extraction or/and raising temperature , the outward force is allowed to be equal to or close to the inward capillary force , such that the pores of the gel may not be collapsed or cracked; at the same time , drying is carried out continuously , and finally the interior water and solvents are removed completely; the above-mentioned method of reducing pressure by air extraction is described as following: when a vapor- ...

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Номер записи: 62
28-04-2016 дата публикации

Insulating composite materials comprising an inorganic aerogel and a melamine foam

Номер: US20160115685A1
Автор: Emilie Gerardin, Pierre-Antoine Bonnardel, Sophie Chausson
Принадлежит: Aspen Aerogels Inc

The invention relates to insulating composite materials comprising an inorganic aerogel and a melamine foam. The invention also relates to the production method of said materials, and to the use of same.

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Номер записи: 63
09-06-2022 дата публикации

METHOD OF PRODUCING NANOPARTICLES

Номер: US20220176333A1
Автор: Casey James Allen, Serrano Charles, Witker David Lawrence
Принадлежит:

Disclosed is a method for preparing a nanoparticle composition. The method includes forming a nanoparticle aerosol in a low pressure reactor, wherein the aerosol comprises MX-functional nanoparticles entrained in a gas, where M is an independently selected Group IV element and X is a functional group independently selected from H and a halogen atom. The method further includes collecting the MX-functional nanoparticles of the aerosol in a capture fluid, where the capture fluid is in fluid communication with the low pressure reactor. The capture fluid includes a polar aprotic fluid immiscible with water and having a viscosity of from 5 to 200 centipoise at 25° C. The capture fluid further includes a functionalization compound miscible with the polar aprotic fluid, the functionalization compound comprising a functional group Y reactive with the functional group X of the MX-functional nanoparticles. 1. A method for preparing a nanoparticle composition , the method comprising:forming a nanoparticle aerosol in a low pressure reactor, wherein the aerosol comprises MX-functional nanoparticles entrained in a gas, wherein M is an independently selected Group IV element and X is a functional group independently selected from H and a halogen atom; andcollecting the MX-functional nanoparticles of the aerosol in a capture fluid in fluid communication with the low pressure reactor, thereby preparing the nanoparticle composition;{'sup': 2', '3', '2', '3, 'sub': 2', '2', '4, 'wherein the capture fluid comprises a polar aprotic fluid immiscible with water and having a viscosity of from 5 to 200 centipoise at 25° C., the polar aprotic fluid comprising a tetraethylene glycol dialkyl ether having the formula R—[OCHCH]OR, where each of Rand Ris an independently selected C5-C8 hydrocarbyl group.'}2. The method of claim 1 , wherein the capture fluid further comprises a functionalization compound that is miscible with the polar aprotic fluid and comprises a functional group Y reactive with ...

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Номер записи: 64
26-04-2018 дата публикации

FIREPROOF MATERIAL INCORPORATING AEROGEL WITH WOOD MATERIAL AND METHOD FOR MAKING THE SAME

Номер: US20180111287A1
Автор: Chen Jean-Hong
Принадлежит:

A fireproof material incorporating aerogel with a wood material and a method for making the same are provided. The method is carried out as follows: A. a mixed solution of a precursor and an organic solvent is added with an acid catalyst and becomes an aerogel solution through hydrolysis; B. the aerogel solution is added with an aqueous alkali catalyst solution and forms an aqueous aerogel solution through condensation; C. a wood material is impregnated with the aqueous aerogel solution such that aerogel generated by gelation covers the wood material; and D. the wood material is dried and then shaped to produce a fireproof material. The fireproof material is highly proof against fire and can pass the limiting oxygen index test. 1. A method for making a fireproof material incorporating aerogel with a wood material , the method comprising the steps of:A. adding an acid catalyst into a mixed solution of a precursor and an organic solvent in order for the mixed solution to undergo hydrolysis and become an aerogel solution, wherein the precursor is alkoxysilane or methyl silicate, the organic solvent is prepared by mixing water with ethanol, the mole ratio of the water to the ethanol ranges from 10:1 to 120:8, the mole fraction of the precursor in the mixed solution ranges from 9% to 16%, the mole fraction of the organic solvent in the mixed solution ranges from 84% to 91%, and the mole ratio of the precursor to the acid catalyst ranges from 1:0.001 to 1:0.1 such that the mole fraction of the precursor in the aerogel solution ranges from 9.1% to 16.66%, the mole fraction of the organic solvent in the aerogel solution ranges from 83.33% to 90.60%, and the mole fraction of the acid catalyst in the aerogel solution ranges from 0.003% to 0.3%;B. adding an aqueous alkali catalyst solution into the aerogel solution in order for the aerogel solution to undergo condensation and form an aqueous aerogel solution, wherein the aqueous alkali catalyst solution is prepared from an ...

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Номер записи: 65
30-04-2015 дата публикации

METHODS AND SYSTEMS FOR CREATING AEROSOLS

Номер: US20150119477A1
Автор: BECK VICTOR, Johnson David Mathew
Принадлежит: PALO ALTO RESEARCH CENTER INCORPORATED

Aerosols can be created by filament stretching and breaking of Newtonian and non-Newtonian fluids by applying a strain to and stretching the fluid. The fluid is stretched along a strain pathway and forms a fluid filament. The fluid filament is caused to break into droplets that can be harvested to form a mist or aerosol. Such a system for aerosol creation can include a pair of counter-rotating rollers that are positioned adjacent to each other that stretch the fluid or a pair of pistons that move toward and away from each other to stretch the fluid. 1. A method of creating a mist from a fluid having a point of capillary break-up , comprising:stretching the fluid along a strain pathway that extends between two diverging surfaces, the stretched fluid forming a fluid filament by applying a strain to the fluid;causing the fluid filament to break into a plurality of droplets when the applied strain exceeds the capillary break-up point of the fluid filament; andharvesting the plurality of droplets to form the mist.2. The method of claim 1 , wherein the stretching of the fluid is performed by a pair of pistons between which the fluid is stretched.3. The method of claim 2 , wherein the strain pathway extends between the pair of pistons.4. The method of claim 3 , further comprising:pooling excess fluid remaining after the mist is formed from the fluid filament on at least one of the pair of pistons, the excess fluid having an excess fluid capillary break-up point;stretching the excess fluid along the strain pathway to form an excess fluid filament by applying the strain to the excess fluid filament;causing the excess fluid filament to break into a plurality of excess fluid droplets when the applied strain exceeds the excess fluid capillary break-up point of the excess fluid filament; andharvesting the plurality of excess fluid droplets to form the mist.5. The method of claim 1 , wherein the stretching of the fluid is performed by a pair of counter-rotating rollers.6. The ...

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Номер записи: 66
27-04-2017 дата публикации

CATALYST PARTICLE AND METHOD FOR PRODUCING THEREOF

Номер: US20170113213A1
Автор: Anisimov Anton Sergeevich, BROWN David P., NASIBULIN Albert G., Reynaud Olivier
Принадлежит:

A method for producing catalyst particles is disclosed and includes forming a solution including a solvent and a material including catalyst material, wherein the material including catalyst material is dissolved or emulsified in the solvent; aerosolizing the formed solution to produce droplets including the material including catalyst material; and treating the droplets to produce catalyst particles or intermediate catalyst particles from the material including catalyst material comprised in the droplets. A method for producing nanomaterials, an apparatus, a catalyst particle and a solution droplet for the production of a catalyst particle are also disclosed. 1. A method for producing catalyst particles , characterized in that the method comprises:forming a solution comprising a solvent and a material including catalyst material, wherein the material including catalyst material is dissolved or emulsified in the solvent,aerosolizing the formed solution to produce droplets comprising the material including catalyst material, andtreating the droplets to produce catalyst particles or intermediate catalyst particles from the material including catalyst material comprised in the droplets.2. The method of claim 1 , wherein intermediate catalyst particles are produced claim 1 , the method further comprising: treating the intermediate catalyst particles to produce catalyst particles.3. The method of any one of and claim 1 , wherein the formed solution has a viscosity between 0.0001 Pascal Seconds and 10 Pascal Seconds claim 1 , preferably between 0.0001 Pascal Seconds and 1 Pascal Seconds.4. The method of any one of to claim 1 , wherein the solution comprises 10-99.9 weight-percent of solvent claim 1 , and preferably 90-99.9 weight-percent of solvent.5. The method of any one of to claim 1 , wherein the solution comprises 0.01-50 weight-percent of material including catalyst material claim 1 , and preferably 0.1-4 weight-percent of material including catalyst material.6. The ...

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Номер записи: 67
18-04-2019 дата публикации

METHODS AND SYSTEMS FOR CREATING AEROSOLS

Номер: US20190111446A1
Автор: BECK VICTOR, Johnson David Mathew
Принадлежит:

A method of creating aerosols includes drawing a fluid from a fluid source through a first nip, the first nip defined between a first roller and an inner surface of a ring, the first nip having an upstream side and a downstream side, drawing the fluid from the fluid source through a second nip, the second nip defined between a second roller and the inner surface of the ring, the second roller positioned adjacent to and spaced apart from the first roller in a circular configuration, the second nip having an upstream side and a downstream side, stretching the fluid between diverging surfaces of the first roller and the inner surface of the ring on the downstream side of the first nip to form a first fluid filament, stretching the fluid between diverging surface of the second roller and the inner surface of the ring on the downstream side of the second nip to form a second fluid filament, causing the first fluid filament to break into a plurality of first droplets, and causing the second fluid filament to break into a plurality of second droplets. 1. A method of creating aerosols , comprising:drawing a fluid from a fluid source through a first nip, the first nip defined between a first roller and an inner surface of a ring, the first nip having an upstream side and a downstream side;drawing the fluid from the fluid source through a second nip, the second nip defined between a second roller and the inner surface of the ring, the second roller positioned adjacent to and spaced apart from the first roller in a circular configuration, the second nip having an upstream side and a downstream side;stretching the fluid between diverging surfaces of the first roller and the inner surface of the ring on the downstream side of the first nip to form a first fluid filament;stretching the fluid between diverging surface of the second roller and the inner surface of the ring on the downstream side of the second nip to form a second fluid filament;causing the first fluid filament to ...

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Номер записи: 68
17-07-2014 дата публикации

POROUS NANOPARTICLES PRODUCED BY SOLVENT-FREE EMULSIFICATION

Номер: US20140199352A1
Автор: FAUCHER Santiago, Lawton David John William
Принадлежит: XEROX CORPORATION

The process for manufacturing porous nanoparticles disclosed herein includes feeding a dry-blended mixture of at least one resin and a neutralizing agent into a feed section of a screw extruder, injecting a surfactant solution downstream of the hopper, and adding an aqueous composition both directly after the surfactant solution as well as further downstream. Porous nanoparticles having a particle size of from about 50 nm to about 2 μm and a pore diameter of from about 20 nm to about 400 nm may be continuously recovered from the extruder following this process. 2. The process according to claim 1 , wherein the resin composition further comprises a neutralizing agent.3. The process according to claim 2 , wherein the neutralizing agent is sodium hydroxide.4. The process according to claim 1 , further comprising adding deionized water after formation of the double emulsion.5. The process according to claim 1 , wherein the porous nanoparticles recovered from the double emulsion comprise at least one member selected from the group consisting of an active compound claim 1 , a cosmetic compound claim 1 , and a pharmaceutical compound.6. The process according to claim 1 , wherein the first aqueous solution comprising a surfactant further comprises at least one member selected from the group consisting of an active compound claim 1 , a cosmetic compound claim 1 , and a pharmaceutical compound.7. The process according to claim 1 , wherein the second aqueous solution further comprises a surfactant.8. The process according to claim 1 , wherein the porous nanoparticles have cell walls with a cell wall thickness of from about 5 nm to about 100 nm.9. The process according to claim 1 , wherein the at least one resin is a polyester resin selected from the group consisting of amorphous resins claim 1 , crystalline resins claim 1 , and combinations thereof.10. A continuous process for producing porous nanoparticles claim 1 , the process comprising:continuously adding a resin ...

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Номер записи: 69
13-05-2021 дата публикации

PIEZORESISTIVE SENSOR MATERIAL AND PREPARATION METHOD AND USE THEREOF

Номер: US20210143321A1
Автор: Nie Kangchen, SHEN Xiaoping, Sun Qingfeng, ZHENG Li
Принадлежит:

The present disclosure provides a method for preparing a piezoresistive sensor material, including: preparing a wood fiber aerogel; conducting dopamine self-polymerization on the surface of the aerogel to obtain a wood fiber-based hydrogel; soaking the wood fiber-based hydrogel in a nano conductive phase suspension or a nano conductive phase precursor to form a conductive phase-loaded wood fiber-based hydrogel; subjecting the conductive phase-loaded wood fiber-based hydrogel to reaction with an aqueous solution including a polyelectrolyte monomer, a crosslinker, an initiator and a catalyst to form a conductive phase-wood fiber-based hydrogel composite; and complexing the composite with metal ions. The present disclosure further discloses a piezoresistive sensor including the sensor material, and a preparation method thereof. The sensor material prepared by the method of the present disclosure has excellent mechanical strength and ionic conductivity, and a sensor further prepared has extremely-high sensitivity. 120-. (canceled)21. A method for preparing a piezoresistive sensor material , comprising:a first step of treating a wood powder with an ionic liquid, and subjecting a resulting wood powder to solation, chemical crosslinking-gelation, and lyophilization to obtain a wood fiber aerogel;a second step of soaking the aerogel in an alkaline buffer of dopamine hydrochloride to conduct self-polymerization on the surface of the aerogel for 10 hours to 14 hours to obtain a wood fiber-based hydrogel deposited with polydopamine;a third step of soaking the wood fiber-based hydrogel in a nano conductive phase suspension or a nano conductive phase precursor for 10 hours to 24 hours, and compressing the liquid in the wood fiber-based hydrogel, and repeating the step operations 3 to 5 times to form a conductive phase-loaded wood fiber-based hydrogel;a fourth step of subjecting the conductive phase-loaded wood fiber-based hydrogel to reaction with an aqueous, solution comprising ...

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Номер записи: 70
27-05-2021 дата публикации

METHOD FOR MANUFACTURING AEROGEL BLANKET

Номер: US20210155486A1
Автор: BAEK Se Won, KANG Tae Gyeong
Принадлежит:

A method for manufacturing an aerogel blanket, the method capable of simplifying manufacturing equipment by performing gelation while rotating a reaction vessel, improving manufacturing efficiency by controlling manufacturing time regardless of the thickness of an aerogel blanket and improving thermal conductivity by uniformly forming an aerogel in a substrate for blanket. 1. A method for manufacturing an aerogel blanket , the method comprising:(Step 1) introducing a catalyzed sol and a substrate for blanket into a reaction vessel, and(Step 2) performing gelation while rotating the reaction vessel,wherein the substrate for blanket is a porous substrate.2. The method of claim 1 , wherein the reaction vessel in Step 2 is rotated at a rate of 10 rpm to 400 rpm.3. The method of claim 1 , wherein the rotation in Step 2 is performed by disposing the long axis of the reaction vessel in a lateral direction.4. The method of claim 1 , wherein the reaction vessel is a reaction vessel in a cylindrical shape.5. The method of claim 1 , wherein the substrate for blanket is a film claim 1 , a sheet claim 1 , a net claim 1 , a fiber claim 1 , a foam claim 1 , a non-woven body claim 1 , or a laminate of two or more layers thereof.6. The method of claim 1 , wherein the catalyzed sol is introduced in an amount of 80-120% based on the volume of a substrate for blanket.7. The method of claim 1 , wherein the catalyzed sol is a catalyzed silica sol.8. The method of claim 1 , further comprising aging step and surface modification step after Step 2.9. The method of claim 8 , wherein the aging step and the surface modification step are performed inside the reaction vessel.10. The method of claim 1 , further comprising drying step after Step 2 claim 1 ,wherein the drying step is performed by supercritical drying or by an atmospheric drying process performed under the conditions of a pressure of 1±0.3 atm and a temperature of 70° C. to 200° C.11. A method for manufacturing an aerogel blanket ...

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Номер записи: 71
25-08-2022 дата публикации

THIN AEROGEL MATERIALS

Номер: US20220271375A1
Автор: Dong Wenting, Evans Owen Richard, Rhine Wendell E., White Shannon Olga, Zafiropoulos Nicholas Anthony
Принадлежит:

The present invention provides a fiber-reinforced aerogel material which can be used as insulation in thermal battery applications. The fiber-reinforced aerogel material is highly durable, flexible, and has a thermal performance that exceeds the insulation materials currently used in thermal battery applications. The fiber-reinforced aerogel insulation material can be as thin as 1 mm less, and can have a thickness variation as low as 2% or less. Also provided is a method for improving the performance of a thermal battery by incorporating a reinforced aerogel material into the thermal battery. Further provided is a casting method for producing thin fiber-reinforced aerogel materials. 1. A battery comprising an insulation material , wherein the insulation material comprises a reinforced aerogel composition.2. The battery of claim 1 , wherein the reinforced aerogel composition comprises an organic aerogel.3. The battery of claim 1 , wherein the reinforced aerogel composition comprises a silica-based framework.4. The battery of claim 1 , wherein the reinforced aerogel composition has a thermal conductivity of between about 12 mW/mK and about 20 mW/mK.5. The battery of claim 1 , wherein the insulation material comprises a layer having an average thickness of less than 5 mm and a thickness variation of less than 15%.6. The battery of claim 1 , wherein the insulation material comprises a layer having an average thickness of from 1 mm to 10 mm and a thickness variation of from 5% to 15%.7. The battery of claim 1 , wherein the reinforced aerogel composition comprises an inorganic reinforcement material.8. The battery of claim 1 , wherein the reinforced aerogel composition comprises an organic reinforcement material.9. The battery of claim 1 , wherein the reinforced aerogel composition comprises a fiber reinforcement material.10. The battery of claim 1 , wherein the insulation material has a resilience of from 50% to 95%.11. A battery comprising an insulation sheet claim 1 , ...

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Номер записи: 72
02-05-2019 дата публикации

3D RUTHENIUM / GRAPHENE AEROGEL COMPOSITE LOADED WITH METAL-ORGANIC FRAMEWORKS, PREPARATION METHOD THEREOF, AND ITS APPLICATION IN CONTINUOUS TREATMENT OF CO

Номер: US20190126236A1
Автор: Chen Dongyun, Jiang Jun, LU Jianmei
Принадлежит:

A 3D ruthenium/graphene aerogel composite loaded with MOF, preparation method thereof, and its application in continuous treatment of CO are disclosed. Using a simple solvothermal method, ruthenium is simultaneously embedded in the aerogel formation process to form a 3D ruthenium/graphene aerogel, which is freeze-dried; the dried aerogel is surface carboxylated, and the MOF material is modified on the surface by step-by-step assemble strategy, and finally the ruthenium/graphene aerogel composite loaded with MOF is obtained. Also disclosed are a simple method, and a cycle involving the simultaneous adsorption and catalytic oxidation of CO eventually formed due to the adsorption ability of MOF and the catalytic ability of catalysts. Furthermore, the adsorption of MOF can increase the instantaneous concentration of CO around the catalyst, which in turn increases the reaction rate. In particular, the product prepared by the simple method has excellent properties for catalytic CO performance. 1. A preparation method of 3D ruthenium/graphene aerogel composite loaded with metal-organic frameworks , characterized in comprising the following steps:(1) adding ruthenium trichloride and graphene oxide in ethylene glycol, reacting after sonication; and then freeze-drying to obtain a 3D ruthenium/graphene aerogel;(2) taking surface carboxylation to said 3D ruthenium/graphene aerogel, to obtain a 3D ruthenium/graphene aerogel composite with carboxyl groups on the surface;(3) modifying MOF material on the surface of 3D ruthenium/graphene aerogel, to obtain 3D ruthenium/graphene aerogel composite loaded with MOF.2. The preparation method of 3D ruthenium/graphene aerogel composite loaded with metal-organic frameworks according to claim 1 , wherein in step (1) claim 1 , the mass ratio of ruthenium trichloride claim 1 , graphene oxide and ethylene glycol is 10:15:4000 claim 1 , the reaction temperature is 170 to 200° C. claim 1 , the reaction time is 18 to 36 h.3. The preparation ...

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Номер записи: 73
23-04-2020 дата публикации

MONOLITHIC, SUPER HEAT-INSULATING, ORGANIC AEROGEL COMPOSITION PREPARATION METHOD, SAID COMPOSITION, AND THE USE THEREOF

Номер: US20200123340A1
Автор: Dufour Bruno, FANNECHERE Florian, HUILLET Cédric, POUPA Nadine, SWOBODA Benjamin
Принадлежит: HUTCHINSON

The invention relates to a process for preparing a gelled, dried composition forming a monolithic aerogel with a heat conductivity of less than or equal to 40 mW·m·Kand derived from a resin of polyhydroxybenzene(s) and formaldehyde(s), to this aerogel composition and to the use thereof. This process comprises: 1. A gelled , dried and non-pyrolyzed composition forming an organic monolithic aerogel with a heat conductivity of less than or equal to 40 mW·m·K , the gelled , dried and non-pyrolyzed composition being based on a resin derived at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F and being able to be obtained by a process comprising:a) polymerization in an aqueous solvent W of said polyhydroxybenzene(s) R and formaldehyde(s) F in the presence of an acidic or basic catalyst, to obtain a solution based on said resin,b) gelation of the solution obtained in a) to obtain a gel of said resin, andc) drying of the gel obtained in b) to obtain a dried gel,step a) being performed in the presence of at least one water-soluble cationic polyelectrolyte P dissolved in said solvent, and the process also comprising a step d) of heat treatment under inert gas of said dried gel obtained in step c) at temperatures of between 150° C. and 500° C. to obtain the non-pyrolyzed aerogel whose said heat conductivity is substantially unchanged, even after exposure to a humid atmosphere,wherein the gelled, dried and non-pyrolyzed composition comprises at least one water-soluble cationic polyelectrolyte P and has said heat conductivity which increases by less than 10% and less than 20%, respectively, after 1 hour and 2 hours of exposure to a humid atmosphere regulated at 20° C. and 65% relative humidity, said heat conductivity being measured with a Neotim conductimeter via the hot wire technique according to standard ASTM D5930-97.2. The gelled claim 1 , dried and non-pyrolyzed composition as claimed in claim 1 , wherein said heat conductivity is measured according to the ...

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Номер записи: 74
03-06-2021 дата публикации

AEROGEL-BASED COMPONENTS AND SYSTEMS FOR ELECTRIC VEHICLE THERMAL MANAGEMENT

Номер: US20210163303A1
Автор: Baur David E., DeKrafft Kathryn Elizabeth, Evans Owen R., Gould George L., Mihalcik David J.
Принадлежит: ASPEN AEROGELS, INC.

Aerogel-based components and systems for electric vehicle thermal management are provided. Exemplary embodiments include a heat control member. The heat control member can include reinforced aerogel compositions that are durable and easy to handle, have favorable performance for use as heat control members and thermal barriers for batteries, have favorable insulation properties, and have favorable reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework reinforced with a fiber and including one or more opacifying additives. 1. A heat control member comprising:at least one layer of an aerogel composition, the aerogel composition including one or more additives, the additives being present at a level of at least about 5 to 20 percent by weight of the aerogel composition;at least one compliant member; anda thermally capacitive material2. The heat control member of claim 1 , wherein the additives are present at a level of at least about 10 to 20 percent by weight of the aerogel composition.3. The heat control member of claim 1 , wherein the one or more additives include fire-class additives.4. The heat control member of claim 1 , wherein the one or more additives include opacifiers.5. The heat control member of claim 1 , wherein the one or more additives include a combination of fire-class additives and opacifers.6. (canceled)7. (canceled)8. The heat control member of claim 1 , wherein the one or more additives are selected from the group consisting of boron carbide claim 1 , diatomite claim 1 , manganese ferrite claim 1 , MnO claim 1 , NiO claim 1 , SnO claim 1 , Ag2O claim 1 , Bi2O3 claim 1 , carbon black claim 1 , graphite claim 1 , titanium oxide claim 1 , iron titanium oxide claim 1 , aluminum oxide claim 1 , zirconium silicate claim 1 , zirconium oxide claim 1 , iron (II) oxide claim 1 , ...

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Номер записи: 75
19-05-2016 дата публикации

Highly porous aerogels

Номер: US20160137503A1
Автор: Hengchang BI, Hua Zhang
Принадлежит: NANYANG TECHNOLOGICAL UNIVERSITY

Provided are methods for the manufacture of highly porous aerogels, particularly to twisted carbon fibers (TCF) and carbon microbelt (CMB) aerogels, by providing a carbon raw material and heating said carbon raw material under inert gas atmosphere and reduced pressure up to 900° C. Also encompassed are the thus obtained aerogels and the use thereof, particularly for treating waste water.

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Номер записи: 76
21-05-2015 дата публикации

SILICA AEROGEL COMPOSITE

Номер: US20150141533A1
Автор: Joshi Sunil Chandrakant, Sachithanadam Mahesh
Принадлежит:

A method of preparing a silica aerogel composite is provided. The method includes providing an aqueous solution comprising a water soluble polymeric binder and a surfactant, adding a silyl-modified silica aerogel to the aqueous solution to form a mixture, and freeze-drying the mixture under reduced pressure at a temperature sufficient to sublime water in the mixture to obtain the silica aerogel composite. A silica aerogel composite is also provided. 1. A method of preparing a silica aerogel composite , the method comprisinga) providing an aqueous solution comprising a water soluble polymeric binder and a surfactant,b) adding a silyl-modified silica aerogel to the aqueous solution to form a mixture, andc) freeze-drying the mixture under reduced pressure at a temperature sufficient to sublime water in the mixture to obtain the silica aerogel composite.2. The method according to claim 1 , wherein providing the aqueous solution comprising a water soluble polymeric binder and a surfactant comprisesa) dissolving the water soluble polymeric binder in an aqueous medium, andb) adding the surfactant to the aqueous medium comprising the water soluble polymeric binder.3. The method according to claim 2 , wherein steps a) and b) are carried out under agitation.4. The method according to claim 2 , wherein amount of water soluble polymeric binder in the aqueous medium is in the range of about 10 wt % to about 50 wt %.5. The method according to claim 2 , wherein amount of surfactant in the aqueous medium comprising the water soluble polymeric binder is in the range of about 0.01 wt % to about 0.66 wt %.6. The method according to claim 1 , wherein the water soluble polymeric binder comprises at least one of —COOH or —NHfunctional groups on a surface of the water soluble polymeric binder.7. The method according to claim 1 , wherein the water soluble polymeric binder is gelatin claim 1 , collagen claim 1 , polyacrylamide claim 1 , polyvinyl pyrrolidone claim 1 , polymethacrylamide ...

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Номер записи: 77
17-05-2018 дата публикации

PROCESS FOR PRODUCING ORGANICALLY MODIFIED AEROGELS

Номер: US20180134565A1
Автор: GOTTSCHALK-GAUDIG Torsten, HINDELANG Konrad, Jantke Dominik, Weidner Richard
Принадлежит: Wacker Chemie AG

It is an object of the invention to provide an economically viable process for the production of hydrophobized aerogels which works both inexpensively and in a resource-conserving manner. 2.2. This object is achieved by the provision of a process for producing organically modified aerogels by producing a sol containing [SiO] units and [RSiO] a units, where x may be the same or different and is 1, 2 or 3, and R may be the same or different and is hydrogen or an organic substituted or unsubstituted radical, using the sol to form a gel, surface-modifying the gel obtained in the presence of more than 0.1% by weight of a phase modifier in a mixture comprising organosiloxane and initiator, wherein the mixture contains at least 20% by weight of organosiloxane and wherein the initiator consists of acid or organosiloxane or mixtures thereof and the gels obtained are dried. 2.3. The aerogels provided can be used as insulating materials, especially in thermal insulation. 2. (canceled)3. The process as claimed in claim 1 , wherein the step of preparing the sol (step i) is carried out by later admixing not less than 1 wt % of starting materials to form [RSiO] units to already initially charged starting materials.4. (canceled)5. The process as claimed in claim 1 , wherein step iii takes place without a solvent exchange beforehand.6. The process as claimed in claim 1 , wherein the initiator consists of trimethylchlorosilane or hydrochloric acid or mixtures thereof.7. The process as claimed in claim 1 , wherein shaping is effected concurrently with the step of gel formation.8. The process as claimed in claim 1 , wherein the organosiloxane used is hexamethyldisiloxane.9. The process as claimed in claim 7 , wherein said shaping is effected by dispersing the sol in a continuous phase claim 7 , wherein the continuous phase comprises not less than 20 wt % of the organosiloxane and simultaneously serves as a reagent for surface modification.10. The process as claimed in claim 1 , wherein ...

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Номер записи: 78
08-09-2022 дата публикации

AEROGEL FOR HARVESTING ATMOSPHERIC WATER

Номер: US20220280915A1
Автор: HO Ghim Wei, YILMAZ KANARGI Gamze
Принадлежит:

An aerogel for harvesting atmospheric water is provided. More specifically, there is provided a polymer-metal organic framework mixed-matrix aerogel comprising a polymer cross-linked with a metal organic framework, wherein the aerogel is capable of continuous sorption-desorption of atmospheric water. There is also provided a method of forming the aerogel. 1. A polymer-metal organic framework mixed-matrix aerogel comprising a polymer cross-linked with a metal organic framework , wherein the aerogel is capable of continuous sorption-desorption of atmospheric water.2. The aerogel according to claim 1 , wherein the polymer cross-linked with the metal organic framework is in a coil state.3. The aerogel according to claim 1 , wherein the polymer comprises: polyacrylamide (PAM) claim 1 , polypyrrole (PPy) claim 1 , polyvinyl alcohol (PVA) claim 1 , polyacrylic acid (PAA) claim 1 , polyether claim 1 , polyoxazole claim 1 , poly(N-vinylcaprolactam) (PVCL) claim 1 , polysilicone claim 1 , agarose claim 1 , cellulose claim 1 , chitosan claim 1 , co-polymers or mixtures thereof.4. The aerogel according to claim 3 , wherein the polymer comprises: poly(N-isopropylacrylamide) (PNIPAM).5. The aerogel according to claim 1 , wherein the metal organic framework comprises chromium claim 1 , zirconium claim 1 , iron claim 1 , aluminium claim 1 , titanium claim 1 , hafnium claim 1 , gallium claim 1 , yttrium claim 1 , vanadium claim 1 , zinc claim 1 , cobalt claim 1 , copper claim 1 , magnesium claim 1 , nickel claim 1 , alloys or mixtures thereof.6. The aerogel according to any claim 5 , wherein the metal organic framework comprises MIL-101(Cr).7. The aerogel according to claim 1 , wherein the metal organic framework is doped with a photothermal material claim 1 , a plasmonic material or a mixture thereof.8. The aerogel according to claim 1 , wherein the polymer cross-linked with a metal organic framework further comprises a hygroscopic salt.9. The aerogel according to claim 8 , wherein ...

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Номер записи: 79
24-05-2018 дата публикации

HYDROPHOBIC AEROGELS COMPRISING LOW OCCUPANCY OF MONOFUNCTIONAL UNITS

Номер: US20180141821A1
Автор: HINDELANG Konrad, Jantke Dominik, Weidner Richard
Принадлежит: Wacker Chemie AG

The problem addressed by the invention is that of producing aerogels which have as high and permanent a hydrophobicity as possible and which have a reduced combustibility, that is as low a carbon content as possible, and are simultaneously less rigid and brittle than known systems, i.e. which with reduced combustibility have a high flexibility and high stability at the same time, that is high mechanical load-bearing capacity. Said problem is solved in that the invention provides gels chosen from lyogel or aerogel, which are synthesised from oxide units and [RSiO] units, wherein the primary particles have a change of concentration in [RSiO] units from the inside to the outside, wherein x can be the same or different and is 1 or 2, and R can be the same or different and is hydrogen or an organic substituted or unsubstituted radical, and wherein the oxide units contain [SiO] units, and a method for producing same. The gels provided can be used in cosmetic, medical or for chromatographic applications, and as a catalyst or catalyst support. If the gels are aerogels, same are preferably used for thermal and/or acoustic insulation. 1. A gel selected from among lyogel- or aerogel-containing primary particles which are made up of oxidic units and [RSiO] units , wherein the primary particles have a change in a concentration of [RSiO] units from inside to outside , where indices x can be identical or different and are in each case 1 or 2 and radicals R can be identical or different and are each hydrogen or an organic , substituted or unsubstituted radical ,{'sub': '4/2', 'and the oxidic units contain [SiO] units.'}2. The gel as claimed in claim 1 , wherein the primary particles have an increase in the concentration of [RSiO] units from the inside to the outside.3. The gel as claimed in claim 1 , wherein the primary particles are built up in a form of a core-shell model claim 1 , where a core contains a concentration of [RSiO] units of less than 20 mol % and a shell contains a ...

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Номер записи: 80
16-05-2019 дата публикации

METHODS FOR FABRICATION OF SILICA AEROGELS WITH CUSTOM SHAPES USING FREEZE DRYING

Номер: US20190143290A1
Автор: BERTINO Massimo, ECHARD Dalton, SELDEN Tyler, White Lauren
Принадлежит:

A method of synthesizing aerogels and cross-linked aerogels are described that incorporate freeze-drying in lieu of supercritical solvent drying. Advantages over supercritical drying include a reduction in hazard risks posed by drying at supercritical conditions as well as the ability to up-scale the process to accommodate large pieces of material without introducing risk. In addition, inexpensive and more sophisticated mold technologies, which are not impervious to supercritical conditions, can be used to produce aerogel materials according to the freeze-drying method of the invention. This introduces a level of freedom never before available for the production of aerogel components. 164-. (canceled)65. A method of producing a hybrid aerogel , comprising:forming an alcogel from a gelation solution comprising a siloxane, polymerizable monomers, and a polymerization initiator;activating the polymerization initiator in a selected pattern in the alcogel to form polymer in said selected pattern from the polymerizable monomers; anddrying the alcogel to produce a composite comprising a patterned polymer with aerogel cores in openings of the patterned polymer.66. The method of wherein the selected pattern is a honeycomb pattern.67. The method of wherein at least some of the aerogel cores are at least 50% visible light transmission.68. The method of wherein the drying is performed by freeze-drying.69. The method of wherein the aerogel cores are comprised of silica aerogel.70. The method of wherein said at least one acrylic monomer comprises a multifunctional acrylic monomer.71. The method of wherein said at least one acrylic monomer comprises two or more acrylic monomers.72. The method of wherein activating is performed by selective exposure to electromagnetic radiation.73. The method of wherein the electromagnetic radiation is or includes visible light.74. The method of wherein activating is performed by application of heat.75. The method of wherein the forming claim 72 , ...

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Номер записи: 81
16-05-2019 дата публикации

METHOD OF PRODUCING A METAL FORM CONTAINING DISPERSED AEROGEL PARTICLES IMPREGNATED WITH POLYMERS

Номер: US20190143400A1
Автор: Golfetto Michael
Принадлежит:

A method of producing a metal form containing dispersed aerogel particles impregnated with polymers comprising a method of impregnating an aerogel with polymers, placing the aerogel impregnated with polymers within a dissolved polymer, cooling the dissolved polymer to create a polymer form with dispersed aerogel particles impregnated with polymers, adding molten metal to the polymer form, vaporizing the polymer form, replacing the polymer form with molten metal, and cooling the molten metal to yield a metal form containing dispersed aerogel particles impregnated with polymers. Dispersing the aerogel particles impregnated with polymers within the polymer form prior to adding molten metal allows the aerogel particles to be fully dispersed throughout the metal form. 1. A method of producing a metal form containing dispersed aerogel particles impregnated with polymers , said method comprising the steps of;(a) mixing at least one solvent to produce a homogeneous mixture,(b) stirring a catalyst into the homogenous mixture to produce a liquid containing solid nanoparticles,(c) mixing the liquid containing solid nanoparticles with a hydrocarbon to create an emulsion,(d) stirring the emulsion until gelation occurs,(e) removing the hydrocarbon from the emulsion with a first dissolving agent to produce a plurality of aerogel particles containing pores,(f) dissolving a polymer in a second dissolving agent to create a dissolved polymer,(g) mixing the plurality of aerogel particles with an alcohol and the dissolved polymer to produce a first mixture,(h) dilating the pores of the aerogel particles within the first mixture,(i) placing the first mixture into a first mold,(j) freezing the first mixture within the first mold creating a solid form,(k) removing the solid form from the first mold,(l) separating the solid form into a plurality of solid particles,(m) placing the solid particles into a chemical bath,(n) replacing the first and second dissolving agent within the solid ...

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Номер записи: 82
15-09-2022 дата публикации

Method for manufacturing a plurality of bodies made of a porous material

Номер: US20220289928A1
Автор: Erbes Joerg, FRICKE Marc, KAMINSKY Torben, Loelsberg Wibke, Movahhed Sohaji, Thomas Maria, Vogelsang Volker, Weinrich Dirk, Wiegmann Rene Thomas
Принадлежит: BASF SE

A method can be used for manufacturing one or more bodies made of a porous material derived from precursors of the porous material in a sol-gel process. The method involves filling precursors of the porous material into a mold defining the shape of the body, where the precursors include at least two reactive components and a solvent, and forming a gel body. The step is then repeated so as to form several gel bodies. The gel bodies are then removed from the mold after a predetermined time in which the gel bodies are formed from the precursors of the porous material. The gel bodies are arranged adjacent to one another, a spacer is provided between two adjacent gel bodies so as to provide a clearance therebetween, and the solvent is then removed from the gel bodies. 1: A method for manufacturing a plurality of bodies made of a porous material derived from precursors of the porous material in a sol-gel process , the method comprising:(i) filling precursors of a porous material into a mold defining a shape of a body, wherein the precursors include at least two reactive components and a solvent, and forming a gel body,(ii) repeating (i) so as to form a plurality of gel bodies,(iii) removing the plurality of gel bodies from the mold after a predetermined time in which the plurality of gel bodies are formed from the precursors of the porous material,(iv) arranging the plurality of gel bodies adjacent to one another,(v) providing a spacer between two adjacent gel bodies so as to provide a clearance therebetween, and(vi) removing the solvent from the plurality of gel bodies.2: The method according to claim 1 , wherein the spacer is a grid assembly comprising a first grid and a second grid connected to one another claim 1 ,wherein the first grid comprises first openings and the second grid comprises second openings, wherein the first openings and the second openings are shifted relative to one another.3: The method according to claim 2 , wherein the grid assembly comprises a ...

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Номер записи: 83
15-09-2022 дата публикации

HEAT RESISTANT AEROGEL MATERIALS

Номер: US20220289939A1
Автор: deKrafft Kathryn E., Dong Wenting, Evans Owen R., Gould George L., Melnikova Irene, Mihalcik David J., Zafiropoulos Nicholas A.
Принадлежит: ASPEN AEROGELS, INC.

The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition. 1. A reinforced aerogel composition comprising a silica-based framework and at least one hydrophobic-bound silicon , wherein the reinforced aerogel composition has a ratio of T:Tof from 0.01 to 0.5 as determined using nuclear magnetic resonance (NMR) spectra.2. The reinforced aerogel composition of claim 1 , wherein the ratio of T:Tis from 0.01 to 0.463.3. The reinforced aerogel composition of claim 1 , further comprising a ratio of Q:Qof between 0.1 and 1.5 as determined using NMR spectra.4. The reinforced aerogel composition of claim 1 , further comprising one or more of microfibers claim 1 , fillers claim 1 , reinforcing agents claim 1 , stabilizers claim 1 , thickeners claim 1 , elastic compounds claim 1 , opacifiers claim 1 , coloring or pigmentation compounds claim 1 , radiation absorbing compounds claim 1 , radiation reflecting compounds claim 1 , corrosion inhibitors claim 1 , thermally conductive components claim 1 , phase change materials claim 1 , pH adjustors claim 1 , redox adjustors claim 1 , HCN mitigators claim 1 , off-gas mitigators claim 1 , electrically conductive compounds claim 1 , electrically dielectric compounds claim 1 , magnetic compounds claim 1 , radar blocking components claim 1 , hardeners claim 1 , anti-shrinking agents claim 1 , smoke suppressors claim 1 , or fire suppressants.5. The reinforced aerogel composition of ...

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Номер записи: 84
07-05-2020 дата публикации

AEROSOLIZATION METHOD FOR PRODUCING SOLID PRODUCT PARTICLES HAVING DESIRED CHARACTERISTICS FROM PRECURSOR PARTICLES

Номер: US20200139324A1
Автор: Ostraat Michele L.
Принадлежит:

The present application provides aerosol processes for selectively incorporating properties of solid precursor particles into processed materials is provided. In one aspect, a carrier gas and a precursor mixture are injected into an aerosol generator. The precursor mixture includes solid precursor particles and a liquid component. One or more ultrasonic transducers are applied to the to the precursor mixture in the aerosol generator to aerosolize a portion of the precursor mixture that comprises solid particles that are smaller than a predetermined size. The aerosolized portion of the precursor mixture is transferred, via the carrier gas, into a reactor. The aerosolized portion in the reactor is then dried and sometimes reacted to produce solid product particles, and the solid product particles are collected in a particle collector. 1. An aerosol process for selectively incorporating properties of solid precursor particles into processed materials , the process comprising:injecting a carrier gas and a precursor mixture into an aerosol generator, wherein the precursor mixture includes solid precursor particles and a liquid component;applying one or more ultrasonic transducers to the precursor mixture in order to aerosolize a portion of the precursor mixture that comprises solid particles that are smaller than a predetermined size;transferring, via the carrier gas, the aerosolized portion of the precursor mixture into a reactor;drying the aerosolized portion in the reactor to produce solid product particles; andcollecting the solid product particles in a particle collector.2. The aerosol process of claim 1 , wherein the solid precursor particles included in the precursor mixture comprise a set of particles having variable sizes including a subset having a largest dimension smaller than the predetermined size.3. The aerosol process of claim 1 , wherein the liquid droplets form over the surface of the solid precursor particles.4. The process of claim 1 , wherein the ...

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Номер записи: 85
07-05-2020 дата публикации

METHODS FOR PRODUCING WET GEL AND XEROGEL

Номер: US20200139328A1
Автор: MUROFUSHI Hidenobu
Принадлежит: AGC Inc.

To provide methods for producing a wet gel and a xerogel, in which variation in gel thickness is little even without highly controlling the levelness of the mold and the gels are less likely to break at the time of gelation or demolding. 1. A method for producing a wet gel , which comprises , in such a state that a second liquid layer made of a second liquid containing a gel raw material , is present on a first liquid layer made of a first liquid , letting the second liquid layer be gelled.2. The method for producing a wet gel according to claim 1 , wherein the second liquid layer is let be gelled while maintaining the separation state between the first liquid layer and the second liquid layer.3. The method for producing a wet gel according to claim 1 , wherein the amount of the second liquid which is dissolved in 100 g of the first liquid is at most 100 g.4. The method for producing a wet gel according to claim 1 , wherein the specific gravity of the first liquid is larger than the specific gravity of the second liquid.5. The method for producing a wet gel according to claim 1 , wherein as the first liquid and the second liquid claim 1 , ones which do not react with each other are used.6. The method for producing a wet gel according to claim 1 , wherein the first liquid does not substantially contain a gel raw material.7. The method for producing a wet gel according to claim 1 , wherein the standard deviation in the thickness of the wet gel obtained by letting the second liquid layer be gelled claim 1 , is at most 0.5 mm.8. The method for producing a wet gel according to claim 1 , wherein the first liquid is a liquid compound having a fluorine atom claim 1 , a liquid compound having a chlorine atom claim 1 , a liquid compound having a silicon atom claim 1 , water claim 1 , or mercury.9. The method for producing a wet gel according to claim 1 , wherein the first liquid is a fluorinated solvent claim 1 , a fluorinated oil claim 1 , a chlorinated solvent claim 1 , a ...

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Номер записи: 86
24-06-2021 дата публикации

THERMALLY TREATED POLYAMIC AMIDE AEROGEL

Номер: US20210189091A1
Автор: IRVIN DAVID J., JOAQUIN Alysa M., MANNING Janae D., Poe Garrett D., SAKAGUCHI Alan D.
Принадлежит:

Thermally treated aerogel compositions that include polyamic amides in an amount less than the aerogel compositions that include polyamic amides prior to thermal treatment, and articles of manufacture that include or are manufactured from the aerogel compositions are described. 1. A method of making , a thermally treated polyamic amide aerogel , the method comprising:(a) providing at least one diamine compound to a solvent to form a solution;(b) providing at least one dianhydride compound to the solution of step (a) under conditions sufficient to form a polyamic acid solution;(c) providing a secondary amine to the polyamic acid solution;(d) subjecting the solution of step (c) to conditions suitable to produce a polymer matrix solution comprising a polyamic amide;(e) subjecting the polymer matrix solution to conditions sufficient to form an aerogel comprising an open-cell structured polymer matrix having a polyamic amide; and(f) thermally treating the (e) polyamic amide aerogel at a temperature sufficient to lower the amount of the polyamic amide in the aerogel.2. The method of claim 1 , wherein step (f) conditions comprise heating the aerogel at a temperature of 275° C. to 550° C. claim 1 , or 290° C. to 500° C. claim 1 , or 300° C. to 350° C. claim 1 , to produce a thermally treated polyimide aerogel.3. The method of claim 2 , wherein step (f) is performed under an inert atmosphere or in air.4. The method of claim 1 , further comprising subjecting the thermally treated polyimide aerogel to a second temperature cycle claim 1 , under vacuum or in air to remove compounds not chemically bound to the polymer matrix.5. The method of claim 1 , wherein the aerogel includes at least 0.01 wt. % and up to 4.95 wt. % of the polyamic amide polymer.6. The method of claim 1 , wherein thermally treating reduces the amount of polyamic amide in the aerogel by at least 15% claim 1 , or at least 50%.7. The method of claim 1 , wherein the secondary amine is a substituted or an ...

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Номер записи: 87
14-06-2018 дата публикации

METHOD AND APPARATUS FOR MANUFACTURING AEROGEL SHEET

Номер: US20180161744A1
Автор: KIM Ye Hon, Lee Je Kyun, OH Kyoung Shil
Принадлежит:

A method for manufacturing an aerogel sheet according to the present invention includes: a step (a) of preparing a blanket having a plate shape; a step (b) of mixing silica sol with gelling catalyst to prepare a silica sol precursor; and a step (c) of injecting the silica sol precursor prepared in the step (b) to a surface of the blanket prepared in the step (a) through an injection device to gelate the silica sol precursor, wherein, in the step (c), the injection device injects the silica sol precursor while moving from one side to the other side of the surface of the blanket. 1. A method for manufacturing an aerogel sheet , the method comprising:a step (a) of preparing a blanket having a plate shape;a step (b) of mixing silica sol with gelling catalyst to prepare a silica sol precursor; anda step (c) of injecting the silica sol precursor prepared in the step (b) to a surface of the blanket prepared in the step (a) through an injection device to gelate the silica sol precursor,wherein, in the step (c), the injection device injects the silica sol precursor while moving from one side to the other side of the surface of the blanket.2. The method of claim 1 , wherein the step (a) comprises a loading step loading the blanket having the plate shape in a storage vessel claim 1 , a transfer step adsorbing the plate-shaped blanket loaded in the storage vessel to transfer the blanket claim 1 , and a preparation step of inserting the blanket transferred by the transfer part into a fixing vessel claim 1 , andthe silica sol precursor is injected to a surface of the blanket inserted into the fixing vessel through the injection device.3. The method of claim 1 , wherein claim 1 , in the step (b) claim 1 , tetraethyl orthosilicate (TEOS) and ethanol are mixed to prepare the silica sol.4. The method of claim 3 , wherein the tetraethyl orthosilicate (TEOS) comprises hydrolyzed TEOS.5. The method of claim 1 , wherein claim 1 , in the step (b) claim 1 , ethanol and ammonia water (NHOH) ...

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Номер записи: 88
30-05-2019 дата публикации

WET GEL GRANULE OF AEROGEL AND PREPARATION METHOD THEREOF

Номер: US20190160446A1
Автор: Chen Jean-Hong, Chen Shiu-Shiu
Принадлежит:

A wet gel granule of aerogel is prepared by the following steps: mixing step: mixing with an organic mixed solvent to form a mixed solution; hydrolysis step: adding an acid catalyst to the mixed solution for carrying out a hydrolysis reaction, and adding a dispersion solvent during the condensation reaction, and agitating to gel the mixed solution during agitation and produce multiple hydrophilic or hydrophobic wet gel granules of aerogel. The overall preparation speed can be shortened quickly and at the same time the hydrophilic or hydrophobic wet gel granules of aerogel wet glue particles are prepared to increase the production efficiency of the wet gel granules of aerogel. 1. A method of preparing wet gel granule of aerogel , comprising steps of:mixing step: mixing a siloxane compound mixture with an organic mixed solvent to form a mixed solution;hydrolysis step: adding an acid catalyst to said mixed solution for carrying out a hydrolysis reaction;condensation and dispersion step: adding a basic catalyst to said mixed solution to carry out a condensation reaction, and adding a hydrophilic or hydrophobic dispersion solvent during the condensation reaction, and agitating, to gel said mixed solution during agitation and produce multiple hydrophilic or hydrophobic wet gel granules of aerogel.2. The method as claimed in claim 1 , wherein said siloxane compound mixture is one or more selected from the group consisting of the following substances: tetramethoxysilane (TMOS) or tetraethoxysilane (TEOS) or R-olefinyl trimethoxysilane (RTMS) or R-olefinyl triethylsilicate (RTES) or R-olefinyl silicone or R-olefinyl silicon coupling agent; wherein R-olefinyl is a functionally substituted olefin cluster claim 1 , comprising Acid (—COOH) claim 1 , amino (—NH) claim 1 , imino (═NH) claim 1 , hydroxy (—OH) claim 1 , ether (—COC—) claim 1 , epoxy (—COH—COH) claim 1 , thiol (—SOOH) claim 1 , halide (—X) claim 1 , phosphate (—PO) claim 1 , Sulfate (—SO) claim 1 , the number of ...

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Номер записи: 89
29-09-2022 дата публикации

METHODS FOR PREPARING AEROGELS BY PLASTICIZING AND FOAMING WITH SOLVENTS

Номер: US20220306473A1
Автор: GAO CHAO, PANG KAI, Xu Zhen
Принадлежит:

The present invention provides a method for preparing an aerogel based on plasticizing and foaming with solvent, and the aerogel material is prepared through plasticization with solvent and generation of in-situ bubbles. The method solves the difficult problem that the non-polymer is difficult to realize thermoplastic foaming, and has wide applicability. In addition, a lot of foaming agents can be uses for this method, and this method is easy to implement, and does not require a special drying process, so that the industrialization development of the porous aerogel is greatly promote. 1. A method for preparing aerogel material , wherein the method is realized based on plasticizing and foaming with solvent and comprises:mixing a material to be foamed with a foaming agent precursor, assembling the resulted mixture into a macroscopical material; andplacing the macroscopical material into a plastic solution to be plasticized and foamed, and then dried to obtain the aerogel material.2. The method according to claim 1 , wherein the plastic solution contains an initiator which initiates the foaming agent precursor to generate gas.3. The method according to claim 1 , wherein the foaming agent precursor is initiated by heating to generate gas.4. A method for preparing aerogel material claim 1 , wherein the method is realized based on plasticizing and foaming with solvent and comprises:assembling a material to be foamed into a macroscopical material; andplacing the macroscopical material into a plastic solution containing, a foaming agent to be plasticized and foamed, and then dried to obtain the aerogel material.5. The method according to claim 4 , wherein the foaming agent comprises a spontaneous foaming agent and a reactive foaming agent claim 4 , wherein the reactive foaming agent is a foaming agent that can generate gas by reacting with the material to be foamed claim 4 , and the spontaneous foaming agent is a foaming agent that can be decomposed to generate gas.6. The ...

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Номер записи: 90
23-06-2016 дата публикации

CROSS-LINKED CARBON NANOTUBE NETWORKS

Номер: US20160175799A1
Автор: Ainara Garcia Gallastegui, Althabaiti Shaeel, Asiri Abdullah, Shaffer Milo
Принадлежит:

The present invention relates to a method for the production of cross-linked carbon nanotube network which are selected from aerogels and xerogels with improved performance and characteristics thereof. The invention is also concerned with carbon nanotube networks which are selected from aerogels and xerogels produced by such processes and uses thereof. 1. An aerogel or xerogel having a covalently cross-linked carbon nanotube network comprising: carbon nanotubes, a solvent, and a linking molecule selected from group consisting of bis(diazonium) salts, wherein the solvent is in an amount that is less than 10% by weight. The present invention relates to a method for the production of cross-linked carbon nanotube networks, which are selected from aerogels and xerogels with improved performance and characteristics thereof. The invention is also concerned with carbon nanotube networks, which are selected from aerogels and xerogels produced by such processes and uses thereof.Xerogels and aerogels are highly porous materials with a particularly low envelope density and high surface area. They typically also display exceptionally low thermal conductivity and acoustic propagation properties. As such, they are useful in a wide range of applications including as purification/separation media, non-reflective panels, gas storage media, catalyst support, porous substrates e.g. sponges and electrochemical device electrodes (for supercapacitors, fuel cells and lithium ion batteries).The most common examples are silica aerogels usually made by sol-gel processes and carbon hydrogels obtained from pyrolysis of resorcinol-formaldehyde resin.Carbon nanotubes are a new form of carbon with an intrinsically high aspect ratio and nanoscale diameter. Individually, they have high strength, high modulus, useful electrical conductivity, and large surface area. Attempts to exploit these properties in macroscopic form depend on the development of appropriate processing techniques.In recent years, ...

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Номер записи: 91
01-07-2021 дата публикации

METHOD FOR MANUFACTURING AEROGEL BLANKET

Номер: US20210198112A1
Автор: BAEK Se Won, LEE Kyu Reon, OH Myung Eun
Принадлежит:

Provided is a method for manufacturing an aerogel blanket having improved processability by reducing manufacturing time and cost, the method including the steps of mixing a precursor material, an acid catalyst and a hydrous alcohol to prepare a sol, depositing a substrate in the sol, and reacting with a gaseous silazane-based compound to form a gel and to perform aging and surface modification reaction simultaneously to form a wet gel blanket, and drying the wet gel blanket to manufacture an aerogel blanket. 1. A method for manufacturing an aerogel blanket , the method comprising:mixing a precursor material, an acid catalyst, and a hydrous alcohol to prepare a sol;depositing a substrate in the sol and reacting the sol with a gaseous silazane-based compound to form a gel and to perform aging and surface modification reaction simultaneously to form a wet gel blanket; anddrying the wet gel blanket to manufacture the aerogel blanket.2. The method of claim 1 , wherein the aging is performed by ammonia generated when the gaseous silazane-based compound reacts with the hydrous alcohol included in the sol.4. The method of claim 1 , wherein the silazane-based compound comprises any one compound or a mixture of two or more compounds selected from the group consisting of tetraalkyldisilazane and hexaalkyldisilazane claim 1 , and the alkyl is an alkyl group having 1 to 4 carbon atoms.5. The method of claim 1 , wherein the silazane-based compound comprises hexamethyldisilazane (HMDS).6. The method of claim 1 , wherein the surface modification is performed by at least one compound selected from the group consisting of an alkoxy silane-based compound and an alkyl silanol-based compound generated when the gaseous silazane-based compound reacts with the hydrous alcohol included in the sol.7. The method of claim 1 , wherein the gaseous silazane-based compound is supplied in an amount of 2.5 parts by weight to 4.2 parts by weight with respect to 100 parts by weight of the sol.8. The ...

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Номер записи: 92
01-07-2021 дата публикации

AEROGEL COMPOSITIONS FOR HIGH TEMPERATURE APPLICATIONS

Номер: US20210198578A1
Автор: Abeles, Evans Owen R., JR. Jon C., Nebo Jon F., Rhine Wendell E.
Принадлежит: ASPEN AEROGELS, INC.

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described. 122-. (canceled)23. A method comprising: (a) forming a silica gel mixture comprising silica gel and fillers; (b) combining the silica gel mixture with a reinforcing structure; and (c) drying the combined mixture to form a silica aerogel composition comprising an aerogel and the fillers; the fillers comprising hydroxides , borates , silicates , carbonates , oxides or combinations thereof; at least a portion of the fillers being in hydrated form.24. The method of claim 23 , wherein the fillers comprise at least a smoke suppressing filler.25. The method of claim 23 , wherein a majority of the fillers are in hydrated form.26. The method of claim 23 , wherein the fillers are present at a level of 1 to 40 percent by weight of the aerogel composite.27. The method of claim 23 , wherein the fillers are present at a level of 1 to 50 percent by weight of the aerogel composite.28. The method of claim 23 , wherein the fillers are present at a level of 5 to 50 percent by weight of the aerogel composite.29. The method of claim 23 , wherein the silica gel mixture is formed by mixing an amount of a filler with an amount of silica gel in a suitable solvent.30. The method of claim 23 , wherein the reinforcing structure is fibrous.31. The method of claim 23 , wherein the fibrous reinforcing structure is in a woven claim 23 , nonwoven claim 23 , mat claim 23 , felt claim 23 , batting claim 23 , or a combination thereof.32. The method of claim 23 , wherein drying comprises drying the composition with a supercritical fluid which comprises carbon dioxide.33. The method of claim 23 , wherein the silica aerogel composition includes an aerogel in which the ...

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Номер записи: 93
28-05-2020 дата публикации

INTERNALLY REINFORCED AEROGEL AND USES THEREOF

Номер: US20200164330A1
Автор: MERWIN Michael, POE Garrett, SAKAGUCHI Alan
Принадлежит:

Internally reinforced aerogels, articles of manufacture and uses thereof are described. An internally reinforced aerogel includes an aerogel having a support at least partially penetrating the aerogel and having the aerogel penetrating the porous structure of the support. 130-. (canceled)31. A composite comprising:a non-fibrous organic polymer aerogel layer having a first surface and an opposing second surface; anda support layer having a first surface and an opposing second surface,wherein an interface is formed between a portion of the first surface of the aerogel layer and a portion of the second surface of the support layer such that the aerogel and support layers are attached to one another, andwherein a majority of the volume of the aerogel layer does not include the support layer.32. The composite of claim 31 , wherein the support layer is integrated with the aerogel layer such that the support layer adheres to the aerogel layer without the use of an adhesive or binder.33. The composite of claim 31 , wherein the aerogel layer is a polyimide aerogel.34. The composite of claim 31 , wherein the aerogel layer is at most 15 mils thick.35. The composite of claim 31 , wherein the aerogel layer is between 1.5 to 15 mils thick.36. The composite of claim 31 , wherein a ratio of the thickness of the support layer to the aerogel layer is 1:1 to 1:10.37. The composite of claim 31 , wherein a ratio of the thickness of the support layer to the aerogel layer is 1:10 to 1:50.38. The composite of claim 31 , wherein the composite has a flex fatigue of at least 100 claim 31 ,000 cycles to failure.39. The composite of claim 31 , wherein the composite has a tensile strength of at least 15 MPa.40. The composite of claim 31 , wherein the composite is 1.5 to 15 mils thick.41. The composite of claim 31 , wherein the support layer is 1 mil or less in thickness.42. The composite of claim 31 , wherein the support layer is 0.5 and 2 mil thick.43. The composite of claim 31 , wherein the ...

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Номер записи: 94
08-07-2021 дата публикации

Aerogel compositions for high temperature applications

Номер: US20210207032A1
Автор: Jon C. Abeles, Jr., Jon F. Nebo, Owen R. Evans, Wendell E. Rhine
Принадлежит: Aspen Aerogels Inc

Aerogel materials, aerogel composites, and the like may be improved by the addition of opacifiers to reduce the radiative component of heat transfer. Such aerogel materials, aerogel composites, and the like may also be treated to impart or improve hydrophobicity. Such aerogel materials and methods of manufacturing the same are described.

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Номер записи: 95
04-06-2020 дата публикации

GEL COMPOSITION AND METHOD FOR PRODUCING GEL COMPOSITION

Номер: US20200171166A1
Автор: MATSUI Hayato, Ozeki Eiichi
Принадлежит: SHIMADZU CORPORATION

The gel composition according to the present invention comprises an amphiphilic block polymer that comprises a hydrophilic block chain having 20 or more sarcosine units and a hydrophobic block chain having 10 or more lactate units. The gel composition of the present invention has an excellent sustained releasability of a water-soluble drug, etc. and places a reduced burden on the living body. The gel composition may be provided in the form of an organogel, hydrogel or xerogel. A xerogel can be obtained by removing a dispersion medium from an organogel. A hydrogel can be obtained by wetting a xerogel with water or an aqueous solution. 1. A method of manufacturing a hydrogel composition , comprising: 'mixing an amphipathic block polymer and an organic solvent, wherein the amphipathic block polymer includes a hydrophilic block chain and a hydrophobic block chain, the hydrophilic block chain has 20 or more sarcosine units, and the hydrophobic block chain has 10 or more lactic acid units;', 'preparing an organogel composition, including'}removing the organic solvent from the organogel composition to obtain a xerogel composition; andwetting the xerogel composition by water or an aqueous solution.2. A method of claim 1 , wherein the organic solvent includes an alcohol of 1 to 6 carbon atoms.3. A method of claim 1 , wherein the mixing includesdissolving or expanding, under heating, the amphipathic block polymer in the organic solvent such that a viscous liquid having fluidity is prepared; andcooling the viscous liquid.4. A method of claim 3 , wherein the viscous liquid includes a drug before the cooling of the viscous liquid. The present application is a divisional and claims the benefit of priority to U.S. application Ser. No. 15/747,576, filed Jan. 25, 2018, which is a National Stage of International Application No. PCT/JP2016/050407, filed Jan. 7, 2016, which is based upon and claims the benefits of priority to Japanese Application No. 2015-148362, filed Jul. 28, 2015. ...

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Номер записи: 96
15-07-2021 дата публикации

ANISOTROPIC LAMELLAR INORGANIC FIBER AEROGEL MATERIALS AND PREPARATION METHOD THEREOF

Номер: US20210213411A1
Автор: Jia Chao, Wu Hui
Принадлежит:

The present disclosure provides an anisotropic lamellar inorganic fiber aerogel material and a preparation method thereof. The method includes: mixing a polymer solution, an inorganic precursor and a chloride to obtain a spinning precursor solution; blow spinning the spinning precursor solution to obtain a composite fiber aerogel; calcinating the composite fiber aerogel to obtain the anisotropic lamellar inorganic fiber aerogel material. Therefore, the method has advantages of simplicity, easy operation, low cost, high efficiency and easy industrialized production. The inorganic fiber aerogel materials prepared by the above method are composed of multi-layer stacked fibers and have an anisotropic lamellar structure, which can be cut into any desired shape, and stacked to any desired thickness. In addition, the inorganic fiber aerogel materials have good flexibility and compressibility, excellent fire resistance, good high and low temperature resistance and superior thermal insulation, which greatly expands their application field. 1. A method for preparing an anisotropic lamellar inorganic fiber aerogel material , comprising:mixing a polymer solution, an inorganic precursor and a chloride to obtain a spinning precursor solution;blow spinning the spinning precursor solution to obtain a composite fiber aerogel;calcinating the composite fiber aerogel to obtain the anisotropic lamellar inorganic fiber aerogel material.2. The method according to claim 1 , wherein the polymer solution comprises polymer material and a solvent claim 1 , wherein the mass ratio of the polymer material to the solvent is in a range of 2:100 to 30:100.3. The method according to claim 1 , wherein the spinning precursor solution further comprises a catalyst.4. The method according to claim 3 , wherein the spinning precursor solution comprises:2 to 30 parts by weight of the polymer material;100 parts by weight of the solvent;0.5 to 100 parts by weight of the inorganic precursor;0.001 to 1 part by ...

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Номер записи: 97
11-06-2020 дата публикации

METHOD FOR PRODUCING PLATE TYPE METAL-SILICA COMPOSITE AEROGEL AND PLATE TYPE METAL-SILICA COMPOSITE AEROGEL PRODUCED THEREBY

Номер: US20200179894A1
Автор: KANG Tae Gyeong, Kim Jong hun, Lee Je Kyun
Принадлежит:

A method for producing a plate type metal-silica composite aerogel and a plate type metal-silica composite aerogel produced thereby in which the metal salt concentration and the basic catalyst concentration are adjusted to form a plate type intermediate first, and then an appropriate amount of a water glass solution is added, thereby enabling the plate type metal-silica composite aerogel to be produced in a short time under conditions of low temperature and atmospheric pressure, so that the process is simpler than the conventional production method, and the cost is reduced, which is excellent in economy. Also provided is a plate type metal-silica composite aerogel, which is produced by the claimed method and has excellent dispersibility that requires no additional surface modifier. 1. A method for producing a plate type metal-silica aerogel particle , the method comprising:1) adding a basic catalyst to a reaction solution including a metal salt to form a plate type intermediate; and2) reacting a water glass solution added with a reaction solution in which the plate type intermediate is formed,wherein a molar concentration ratio of the metal salt in the reaction solution to the water glass solution is 2:1 to 4:1.2. The method of claim 1 , wherein an aspect ratio of the plate type metal-silica aerogel particle is 1:50 to 1:100.3. The method of claim 1 , wherein the plate type metal-silica aerogel particle is formed by bonding silica to the surface of the plate type intermediate.4. The method of claim 3 , wherein the bonding is formed by gelation.5. The method of claim 3 , wherein the silica is present in an amount of 20 to 30 wt % claim 3 , based on the total weight of the plate type metal-silica aerogel particle.6. The method of claim 1 , wherein the reaction is performed at a temperature of 25 to 50° C.7. The method of claim 1 , wherein the reaction is performed at a pressure of 1 to 1.2 bar.8. The method of claim 1 , wherein the reaction is performed for 3 to 6 ...

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Номер записи: 98
11-06-2020 дата публикации

Preparation of SiO2-TiO2 Composite Aerogels and SiO2@TiO2 Core-shell Aerogels with High Thermal Stability and Enhanced Photocatalysis

Номер: US20200180969A1
Автор: Filho Ubirajara Pereira Rodrigues, Neto Elias Paiva Ferreira, WORSLEY Marcus A.
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According to one inventive concept, a method for forming an aerogel includes forming a SiOgel, forming a mixture of the SiOgel and a TiCl-derived precursor sol, wherein the TiClsol is comprised of TiCland a solvent, forming a SiO/TiOwet gel, drying the SiO/TiOwet gel, and heating the dried SiO/TiOgel. 1. A method for forming an aerogel , the method comprising:{'sub': '2', 'forming a SiOgel;'}{'sub': 2', '4', '4', '4, 'forming a mixture of the SiOgel and a TiCl-derived precursor sol, wherein the TiClsol is comprised of TiCland a solvent;'}{'sub': 2', '2, 'forming a SiO/TiOwet gel;'}{'sub': 2', '2, 'drying the SiO/TiOwet gel; and'}{'sub': 2', '2, 'heating the dried SiO/TiOgel.'}2. The method of claim 1 , wherein the solvent includes a mixture of dimethylformamide and water.3. The method of claim 1 , wherein the drying comprises supercritical carbon dioxide drying.4. The method of wherein the heating is at a temperature in a range of about 600° C. to about 1000° C.5. The method of claim 1 , wherein a SiO-TiOcomposite aerogel is formed using epoxide-assisted gelation.6. The method of claim 5 , wherein forming the SiOgel comprises:{'sub': 2', '2', '2, 'drying the SiOgel, wherein the SiOgel is a SiOwet gel; and'}{'sub': 2', '2, 'crushing the SiOaerogel into a powder comprising SiOaerogel particles.'}7. The method of claim 6 , wherein forming the SiO-TiOwet gel comprises adding epoxide to a mixture of SiOaerogel particles dispersed in the TiClsol for gelation of the mixture.8. The method of claim 5 , wherein the formed aerogel is a SiO-TiOcomposite aerogel.9. The method of claim 1 , wherein a SiO@TiOcore-shell aerogel is formed using thermo-induced deposition.10. The method of claim 9 , wherein the TiOis deposited on the SiOin one step using TiClas a precursor.11. The method of claim 10 , wherein the one step of depositing the TiOon the SiOcomprises:{'sub': 2', '4', '2', '2, 'soaking the SiOgel in a bath comprising TiClsol, wherein the SiOgel is a SiOwet gel, wherein the ...

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Номер записи: 99
11-06-2020 дата публикации

SYSTEM AND METHOD FOR FIBER REINFORCED AEROGEL INSULATION

Номер: US20200182394A1
Автор: Fay Ralph Michael, Kukatin Stanislav
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A fiber reinforced insulation product may include a first layer of fiber reinforced aerogel composite and a second layer of fiber reinforced aerogel composite. The first layer may include entangled fibers, aerogel particles dispersed within the entangled fibers, and a first binder that may form a first binding framework that bonds the entangled fibers and the aerogel particles of the first layer together. The second layer may include entangled fibers, aerogel particles dispersed within the entangled fibers, and a second binder that may form a second binding framework that bonds the entangled fibers and the aerogel particles of the second layer together. The fiber reinforced insulation product may further include a third binder that may form a third binding framework that bonds the first layer and the second layer together. The third binder may be dispersed throughout the first layer and the second layer. 1. A method for producing a pipe insulation product , wherein the method comprises:providing a first mat of fiber reinforced aerogel composite, the first mat having a first density;providing a second mat of fiber reinforced aerogel composite, the second mat having a second density; andforming an insulation product of fiber reinforced aerogel composite from the first mat and the second mat, the insulation product having a third density, wherein the third density is greater than the first density and the second density and wherein a ratio of the third density to the first density or the second density is between about 1.2:1 and about 2:1.2. The method for producing a pipe insulation product of claim 1 , wherein the first density or second density is between about 4 pcf and about 5 pcf claim 1 , and the third density is between about 6 pcf and about 8 pcf.3. The method for producing a pipe insulation product of claim 1 , wherein providing the first mat of fiber reinforced aerogel composite or the second mat of fiber reinforced aerogel composite comprises:providing an ...

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Номер записи: 100