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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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Форма поиска

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 10. Отображено 10.
09-07-2014 дата публикации

Scratch-resistant high-gloss spraying-free polypropylene composition with aesthetic effect as well as preparation method and application of composition

Номер: CN103910937A
Принадлежит:

The invention discloses a scratch-resistant high-gloss spraying-free polypropylene composition with aesthetic effect. The composition comprises the following components by weight percent: 40-94wt% of polypropylene, 0-15wt% of polyethylene, 0-20wt% of elastomer, 0-30wt% of filler, 1-6wt% of a scratch resistant agent system, 2-6wt% of effect pigment, 0.1-2wt% of brightener, and 0-4wt% of a compatilizer. Due to the synergistic effect of the scratch resistant agent system and the effect pigment, the spraying-free product is endowed with more excellent scratch resistance, thus having broader application prospect; in addition, the fluidity of the polypropylene composition is also affected, so that in injection molding or extruding, the change of the space position of the metal pigment of certain appearance shape along with melt flow is limited, the orientation of the metal pigment along with melt flow is reduced or even avoided, the defect of heterochromia of traditional spraying-free product ...

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09-07-2014 дата публикации

Spraying-free polypropylene composite with aesthetic effect, and preparation method and applications of polypropylene composite

Номер: CN103910941A
Принадлежит:

The invention discloses a spraying-free polypropylene composite with an aesthetic effect, and a preparation method and applications of the polypropylene composite. The spraying-free polypropylene composite contains 40-98wt% of polypropylene, 0-20wt% of an elastomer, 0.1-30wt% of filler, 0.5-6wt% of effect pigments, 0.1-2wt% of a brightener and 0.01-4wt% of a compatibilizer. The preparation method comprises the following steps: mixing the polypropylene, the elastomer, the compatibilizer and the brightener in a high-speed mixer for 1-3 minutes; then adding the filler and the effect pigments, and mixing for 1-3 minutes in the high-speed mixer at the rotation speed of 1000-2000 turns/minute, thereby obtaining a premixture; melting-extruding the premixture by a twin-screw extruder, wherein the temperature of each screw area is 190-230 DEG C; and performing vacuum granulation. By virtue of a cross-linked network structure which is formed by the filler and the polarity compatibilizer, the flowing ...

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05-08-2015 дата публикации

Polyamide composition and preparation method thereof

Номер: CN104817841A
Принадлежит:

The invention provides a polyamide composition and a preparation method thereof. The polyamide composition has high melt strength and is characterized in comprising thermoplastic polyamide resin and a maleic anhydride copolymer. The maleic anhydride copolymer is obtained through alternating copolymerization or block copolymerization of maleic anhydride and one or two monomers comprising alkenyl. The composition provided by the invention has relatively high melt strength and hydrolysis resistance.

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11-07-2023 дата публикации

Polyester composition as well as preparation method and application thereof

Номер: CN116410579A
Принадлежит:

The invention discloses a polyester composition which comprises the following components in parts by weight: 100 parts of PBT (polybutylene terephthalate) resin; 5 to 30 parts of copolyester containing terephthalic acid and cyclohexyl dimethyl carbinol units; 0.5 to 16 parts of a plasticizer; wherein the plasticizer is a fatty acid ester plasticizer containing more than or equal to 2 ester bond functional groups. By selecting the specific plasticizer and the specific content of copolyester containing terephthalic acid and cyclohexyl dimethyl carbinol units, the laser transmittance can be effectively improved, so that the laser welding strength is improved, and the selected plasticizer does not cause hydrolysis of the polyester composition; meanwhile, foaming and overflowing in the laser welding process can be reduced through copolyester containing terephthalic acid and cyclohexyl dimethyl carbinol units. Therefore, the polyester composition provided by the invention is suitable for laser ...

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21-07-2023 дата публикации

Halogen-free flame-retardant reinforced nylon composition as well as preparation method and application thereof

Номер: CN116462963A
Принадлежит:

The invention relates to a halogen-free flame-retardant reinforced nylon composition as well as a preparation method and application thereof. The halogen-free flame-retardant reinforced nylon composition comprises the following components: aliphatic PA resin, copolymerized PA resin, a compatilizer, a halogen-free flame retardant, modified flat glass fibers, an antioxidant, a lubricant and a nucleating agent. The prepared composite material is excellent in mechanical property, and after paint spraying, the appearance of a sample is free of sink marks and orange peel phenomena.

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09-04-2021 дата публикации

A tool for LoRaWAN node near field configuration is disclosed

Номер: CN212936210U

The invention relates to a tool for LoRaWAN node near-field configuration, and the tool comprises a communication module which is used for communicating with an upper computer; the microprocessor module is connected with the communication module; the first radio frequency chip module is connected with the microprocessor module; the second radio frequency chip module is connected with the microprocessor module; an antenna; and the antenna switch is used for switching the electrical connection between the antenna and the first radio frequency chip module and the second radio frequency chip module.

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25-03-2015 дата публикации

Thermoplastic resin composition and preparation method thereof

Номер: CN104448815A
Принадлежит:

The invention provides thermoplastic resin composition and a preparation method thereof. The thermoplastic resin composition is characterized by comprising thermoplastic polyamide resin and alcohol amide, wherein the alcohol amide is a vinyl alcohol allyl monomer copolymer, polyol substitute amide or a combination of the vinyl alcohol allyl monomer copolymer and the polyol substitute amide. The alcohol amide is added to the polyamide composition and has the unexpected stabilizing effect (especially the long-term effect) on thermo-oxidative aging, coolants, oil, road salts and even light and weather.

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28-07-2023 дата публикации

Antibacterial nylon composition as well as preparation method and application thereof

Номер: CN116496617A
Принадлежит:

The invention provides an antibacterial nylon composition as well as a preparation method and application thereof. The antibacterial nylon composition is prepared from the following components in parts by weight: 60 to 70 parts of fatty polyamide, 20 to 35 parts of high-strength glass fiber, 1 to 3 parts of antibacterial agent, 0.5 to 3 parts of odor adsorbent and 0.5 to 2 parts of auxiliary agent, wherein the antibacterial agent is selected from one or more of zinc pyrithione and copper pyrithione. The antibacterial nylon composition disclosed by the invention has the characteristics of excellent mechanical property, excellent antibacterial property and low odor.

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27-06-2023 дата публикации

Internet of vehicles product verification method and device based on LTE communication module

Номер: CN116347392A
Принадлежит:

According to the technical scheme disclosed by the embodiment of the invention, the method comprises the following steps: receiving a user input password length, a password complexity degree, a fixed character, an LTE communication module composition chip ID and an LTE communication module production code of an Internet of Vehicles product application end; generating a first password according to the password length, the password complexity degree and the fixed characters; encrypting the first password into a first password ciphertext, and packaging the first password ciphertext, an LTE communication module composition chip (chipID), an LTE communication module production code and preset international mobile equipment identification (IMEI) information to generate a first password packet; performing verification processing on the first password packet to obtain a first password verification packet; encrypting the first password verification packet to obtain a first key packet file, and determining ...

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01-12-2017 дата публикации

Modified polyester composite material used for flat fibers for welding and capable of improving laser transparency

Номер: CN0107418158A
Принадлежит:

The invention discloses a modified polyester composite material used for flat fibers for welding and capable of improving the laser transparency. A laser absorption part comprises thermoplastic polyester resin and a phosphate compound or a laser absorption component of boride micro-particles, which have the grain diameter not more than 900nm, of rare-earth metallic elements; a laser transmission part comprises thermoplastic polyester resin and surface modified metal oxide which takes at least one of surface modified titanium dioxide and zinc oxide with the diameter of 30nm to 400nm as a main part, wherein the intrinsic viscosity of the thermoplastic polyester resin is 50 to 220 and the content of a terminal carboxyl group is 0 to 100meq/kg. By adopting the polyester composite material disclosed by the invention, the laser transparency is improved; the polyester composite material can have good welding strength and relatively long product service life, and provides options for application ...

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