Composite sol and method for preparing material for anti-radiation space suit by use of same

A composite sol and aerospace technology, applied in textiles and papermaking, fiber treatment, coating, etc., can solve the problems of decreased protective performance, formation of micropores, decreased protective effect, etc., and achieve the effect of ensuring stability

Inactive Publication Date: 2013-03-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the simple silicon oxide film is prone to cracks under the action of the space radiation environment, resulting in a decline in the protective effect.
The simple aluminum oxide film is prone to particle shedding in the space radiation environment, forming micropores, resulting in a decrease in protective performance

Method used

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  • Composite sol and method for preparing material for anti-radiation space suit by use of same
  • Composite sol and method for preparing material for anti-radiation space suit by use of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, silica-alumina composite sol

[0041] It is composed of silica sol and alumina sol. The silica sol includes ethyl orthosilicate, γ-(methacryloyloxy)propyltrimethoxysilane, absolute ethanol, hydrochloric acid, N,N-dimethoxysilane Methylformamide, wherein the molar ratio of ethyl orthosilicate, γ-(methacryloyloxy)propyltrimethoxysilane, absolute ethanol, water, and hydrochloric acid is 1 / (0~1.0) / [16 ~20] / [6~10] / [0.01~0.03]. The alumina sol includes aluminum isopropoxide distilled water and nitric acid, wherein the molar ratio of aluminum isopropoxide to distilled water is 100 to 200, and the pH value of the alumina sol is 3 to 5.

Embodiment 2

[0043] This example is a special example of Example 1. The silica-alumina composite sol is composed of silica sol and alumina sol. The silica sol includes tetraethyl orthosilicate, γ-(methacryloyloxy)propyl Trimethoxysilane, absolute ethanol, hydrochloric acid, N,N-dimethylformamide, including ethyl orthosilicate, γ-(methacryloyloxy)propyltrimethoxysilane, absolute ethanol, water , The molar ratio of hydrochloric acid is 1 / 0.1 / 16 / 6 / 0.01. The alumina sol includes aluminum isopropoxide distilled water and nitric acid, wherein the molar ratio of aluminum isopropoxide to distilled water is 100, and the pH value of the alumina sol is 3.

Embodiment 3

[0045] This example is a special example of Example 1. The silica-alumina composite sol is composed of silica sol and alumina sol. The silica sol includes tetraethyl orthosilicate, γ-(methacryloyloxy)propyl Trimethoxysilane, absolute ethanol, hydrochloric acid, N,N-dimethylformamide, including ethyl orthosilicate, γ-(methacryloyloxy)propyltrimethoxysilane, absolute ethanol, water , The molar ratio of hydrochloric acid is 1 / 0.9 / 20 / 10 / 0.03. The alumina sol includes aluminum isopropoxide distilled water and nitric acid, wherein the molar ratio of aluminum isopropoxide to distilled water is 200, and the pH value of the alumina sol is 5.

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Abstract

The invention relates to composite sol and a method for preparing a material for an anti-radiation space suit by use of the same. The silicon oxide-aluminum oxide composite sol comprises silicon oxide sol and aluminum oxide sol; the silicon oxide sol comprises tetraethoxysilane, gamma-(methacryloxy)propyltrimethoxylsilane, absolute ethyl alcohol, hydrochloric acid and N,N-dimethylformamide; and the aluminum oxide sol comprises aluminum isopropoxide, distilled water and nitric acid. Meanwhile, the invention also relates to a material for a space suit prepared by use of the silicon oxide-aluminum oxide composite sol and a preparation method. Through the composite sol provided by the invention, a space composite structure is formed between silicon oxide and aluminum oxide to guarantee the stability, density and flexibility of a membrane layer; after irradiation in a space radiation environment, the generation of cracks and micropores is avoided on the surface of the aluminum oxide-silicon oxide composite membrane; and the material for an anti-radiation space suit can bear long-time radiation in the space radiation environment.

Description

technical field [0001] The invention relates to the technical field of anti-radiation chemical sols, in particular to a composite sol and a method for preparing anti-radiation spacesuit materials by using the compound sol. Background technique [0002] The space environment is completely different from the complex environment on the ground. It is full of particle environments such as protons and electrons with different energies, which will cause radiation damage to the materials of astronauts' extravehicular space suits, affect the life safety of astronauts, and restrict extravehicular activities. time. At present, the surface of aerospace suit materials is mostly coated with a metal film to protect the space radiation environment. The protective effect can meet the requirements of 1 to 7 days of extravehicular working time, but it is not suitable for long-term extravehicular activities. With the implementation of the human space program, spacesuit materials with a cumulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D7/12D06M15/643
Inventor 王简
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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