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

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Применить Всего найдено 6. Отображено 6.
05-02-2014 дата публикации

Water-seepage-proof high-light coating composition for tipping paper and preparation method thereof

Номер: CN103556530A
Автор: YU MINGDONG, LI FUYA, DUAN KONGRONG, DAI SHENGJIE
Принадлежит:

The invention discloses a water-seepage-proof high-light coating composition for tipping paper and a preparation method thereof; the coating composition comprises the following components by weight: 6-80 parts of main part resin, 20-30 parts of alkali soluble resin, 0-4 parts of bentonite, 0.1-0.2 part of a thickening agent and 0.1-0.2 part of a defoaming agent. During preparation, the main part resin is added into a reaction kettle for low-speed stirring; while stirring, the alkali soluble resin is added for low-speed stirring for 10min; while stirring, the bentonite is added for low-speed stirring for 5-10min; while stirring, the defoaming agent is added for high-speed stirring for 40min; while stirring, the thickening agent is added for low-speed stirring for 20min; and then a material is discharged for packaging. The preparation method has the advantages of simple process and low cost; the prepared coating composition is good in printing adaptability and good in water-seepage-proof ...

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Номер записи: 1
07-10-2009 дата публикации

Resonance scattering spectrometry for measuring ammonia nitrogen in water rapidly

Номер: CN0101551328A
Автор: JIANG ZHILIANG, ZHOU LIANPING, TAN HUIMIN, LIANG AIHUI, LI FUYA, WEN GUIQING, ZHILIANG JIANG, LIANPING ZHOU, HUIMIN TAN, AIHUI LIANG, FUYA LI, GUIQING WEN
Принадлежит:

The present invention discloses a resonance scattering spectrometry for measuring ammonia nitrogen in water rapidly, the measurement steps is that 1. a standard system of ammonium muriate is prepared, and a scattering intensity I is mensurated at a point of 447m; 2. a blank system without ammonium muriate is prepared, and a scattering intensity I0 is mensurated; 3. calculation of Delta I447m = I-I0; 4. a working curve is made according to the concentration relation of the Delta I447m to the ammonium muriate; 5. a detection system is prepared by adding a measuring object containing ammonium muriate with ignorance concentration, and Delta I447M of the measuring system is obtained; 6. according to the working curve, the ammonium muriate concentration of the measuring object is calculated. Comparing with the existing method, the instrument of the method of the invention is simple, operation is easy, reagent is obtained easily, sensitivity is high, measurement range is wide, and cost is low.

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Номер записи: 2
19-03-2014 дата публикации

Water-based varnish with good resolubility and high water scrubbing resistance and preparation method therefor

Номер: CN103642339A
Автор: YU MINGDONG, DAI SHENGJIE, DUAN KONGRONG, LI FUYA
Принадлежит:

The invention relates to a water-based varnish with good resolubility and high water scrubbing resistance and a preparation method therefor. The water-based varnish comprises the following ingredients, by weight, 30-50 parts of water-based acrylic emulsion, 5-30 parts of water-based alkali-soluble type acrylic resins, 10-20 parts of deionized water, 10-30 parts of ethanol, 0.5-8 parts of neutralizers, 5-15 parts of hydrophobic agents, 1-5 parts of water-based wax slurry, and 0.1-0.4 part of auxiliary agents. During preparation, part of deionized water is taken and mixed with water-based alkali-soluble type acrylic resins and neutralizers, the mixture is heated up to the temperature of 60-70 DEG C, and an acrylic ester aqueous solution is obtained; the acrylic ester aqueous solution, water-based acrylic emulsion, ethanol, hydrophobic agents, water-based wax slurry and the rest of deionized water are put into a reactor, and stirred uniformly at a low speed; then auxiliary agents are added ...

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Номер записи: 3
10-12-2014 дата публикации

Polythiophene derivative aqueous dispersion and preparation method thereof

Номер: CN104194280A
Автор: ZHAO DACHENG, LI FUYA
Принадлежит:

The invention relates to a polythiophene derivative aqueous dispersion and a preparation method thereof, and aims at improving the electrical conductivity and other properties of the aqueous dispersion. The aqueous dispersion is prepared from the following components in percent by mass: 0.3-10 percent of poly(3,4-dialkoxythiophenes), 0.3-20 percent of polyanion and 0.06-20 percent of solubilizer. The preparation method comprises the following steps: mixing poly(3,4-dialkoxythiophenes), polyanion, oxidant, solubilizer and aqueous solvent to react; carrying out anion exchange and/or cation exchange treatment on the solution obtained after reaction so as to obtain the polythiophene derivative aqueous dispersion, wherein the solubilizer is one or more of polysorbates, polyoxyethylene aliphatates, tweens, polyoxyethylene hardened castor oil, polyoxyethylene castor oil, fatty alcohol polyoxyethylene-polyoxypropylene ether, polyoxyethylene sorbitan fatty acid ester and polyglycerol fatty acid ...

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Номер записи: 4
16-02-2011 дата публикации

Resonance scattering spectrometry for rapidly measuring ammonia nitrogen in water

Номер: CN0101551328B
Автор: JIANG ZHILIANG, ZHOU LIANPING, TAN HUIMIN, LIANG AIHUI, LI FUYA, WEN GUIQING, ZHILIANG JIANG, LIANPING ZHOU, HUIMIN TAN, AIHUI LIANG, FUYA LI, GUIQING WEN
Принадлежит:

The present invention discloses a resonance scattering spectrometry for measuring ammonia nitrogen in water rapidly, the measurement steps is that 1. a standard system of ammonium muriate is prepared,and a scattering intensity I is mensurated at a point of 447m; 2. a blank system without ammonium muriate is prepared, and a scattering intensity I0 is mensurated; 3. calculation of Delta I447m = I-I0; 4. a working curve is made according to the concentration relation of the Delta I447m to the ammonium muriate; 5. a detection system is prepared by adding a measuring object containing ammonium muriate with ignorance concentration, and Delta I447M of the measuring system is obtained; 6. according to the working curve, the ammonium muriate concentration of the measuring object is calculated. Comparing with the existing method, the instrument of the method of the invention is simple, operation is easy, reagent is obtained easily, sensitivity is high, measurement range is wide, and cost is low.

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Номер записи: 5
09-04-2014 дата публикации

Polythiophene derivative aqueous dispersion and preparation method thereof

Номер: CN103709417A
Автор: ZHAO DACHENG, LI FUYA
Принадлежит:

The invention discloses a preparation method of a polythiophene derivative aqueous dispersion. The preparation method comprises the following polymerization processes: firstly mixing an oxidant aqueous solution with 3,4-dialkoxythiophene shown in a formula (1) in the specification; dropwise adding the solution obtained after mixing to a solution containing polyanions, carrying out high-shear stirring for 24 hours to polymerize 3,4-dialkoxythiophene, then adding cation-anion resins, stirring the materials for 12 hours and filtering the product, thus obtaining the polythiophene derivative aqueous dispersion. The preparation method has the beneficial effects that the preparation method has the advantage that the proportion of an oxidant to EDOT (3,4-ethylenedioxythiophene) can be always kept consistent, so that the dispersion liquid with good stability is obtained; the preparation method is simple and is mild in production conditions and low in requirements of instruments and equipment; through ...

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Номер записи: 6