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SiC-Si3N4-carbon fiber compounded bullet-proof vest fabric and preparation method thereof

A body armor, carbon fiber technology, applied in carbon fiber, fiber processing, textiles and papermaking, etc., can solve the problems affecting comfort, the combination of shear thickening liquid and three-dimensional bulletproof fabrics needs to be improved, and achieve strong bullet resistance. , Good marketing value, light quality effect

Active Publication Date: 2020-04-21
深圳市汇泰锦纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, research on body armor fabric materials has received extensive attention. China Invention Patent Application No. 201710731235.1 discloses a shear thickening liquid and its preparation method and application. The patent evenly disperses the shear thickening liquid in the three-dimensional bulletproof fabric Inside, a three-dimensional interlocking bulletproof fabric is obtained; the disadvantage is that the combination of the shear thickening liquid and the three-dimensional bulletproof fabric needs to be improved
Xu Yuanchen and others translated and reported a new type of Spectra shield plus bulletproof fabric ("Industrial Textiles", 1998, 8: 45). The fabric is made of ultra-high-strength polyethylene fiber Spectra as raw material, and it is made into waste woven cloth. Fixes the fibers without any bending; the downside of this ballistic fabric is that the presence of resin affects the wearing comfort

Method used

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  • SiC-Si3N4-carbon fiber compounded bullet-proof vest fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this embodiment, a SiC-Si 3 N 4 -The carbon fiber composite body armor fabric is prepared by the following method, including the following steps:

[0026] (1) Preparation of SiC sol: Mix 35mL of absolute ethanol, 35mL of deionized water and 15mL of 10% hydrochloric acid aqueous solution to prepare mixed solution a; dissolve 10g of tetraethoxysilane and 125mL of phenolic resin in 400mL of absolute ethanol, Mixed solution b is obtained; mixed solution a is slowly added dropwise to mixed solution b, and the dropwise addition time is 2 hours; after the dropwise addition is completed, stir for 2 hours; after the stirring is completed, leave it to stand and age for 5 hours; the temperature of the whole process control system is : 80°C; a sol was obtained.

[0027] (2) Preparation of perhydropolysilazane precursor: In a three-necked flask, mix 40mL of pyridine and 40mL of ethanol, and inject dichlorosilane gas into the mixture at a volume of 3mL / min for 1.5 hours , stirr...

Embodiment 2

[0031] In this embodiment, a SiC-Si 3 N 4 -The carbon fiber composite body armor fabric is prepared by the following method, including the following steps:

[0032] (1) Preparation of SiC sol: Mix 30 mL of absolute ethanol, 30 mL of deionized water and 10 mL of 10% hydrochloric acid aqueous solution to prepare mixed solution a; dissolve 10 g of tetraethoxysilane and 100 mL of phenolic resin in 300 mL of absolute ethanol, Mixed solution b is prepared; mixed solution a is slowly added dropwise to mixed solution b, and the dropping time is 1 hour; after the dropwise addition is completed, stir for 2 hours; after the stirring is completed, leave it to stand and age for 5 hours; the temperature of the whole process control system is : 70°C; a sol was obtained.

[0033] (2) Preparation of perhydropolysilazane precursor: In a three-necked flask, mix 30 mL of pyridine and 30 mL of ethanol, and inject dichlorosilane gas into the mixture at a volume of 2 mL / min for 1 hour , stirred a...

Embodiment 3

[0037] In this embodiment, a SiC-Si 3 N 4 -The carbon fiber composite body armor fabric is prepared by the following method, including the following steps:

[0038] (1) Preparation of SiC sol: Mix 40 mL of absolute ethanol, 40 mL of deionized water and 20 mL of 10% hydrochloric acid aqueous solution to prepare a mixed solution a; dissolve 10 g of tetraethoxysilane and 150 mL of phenolic resin in 500 mL of absolute ethanol, Mixed solution b is obtained; mixed solution a is slowly added dropwise to mixed solution b, and the dropwise addition time is 3 hours; after the dropwise addition is completed, stir for 3 hours; after the stirring is completed, leave it to stand for aging for 5 hours; : 85°C; a sol was prepared.

[0039] (2) Preparation of perhydropolysilazane precursor: In a three-necked flask, mix 50mL of pyridine and 50mL of ethanol, and inject dichlorosilane gas into the mixture at a rate of 4mL / min for 2 hours , stirred at room temperature to form a sol, and the sti...

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Abstract

The present invention relates to a SiC-Si3N4-carbon fiber compounded bullet-proof vest fabric and a preparation method thereof. According to the bullet-proof vest fabric, a carbon fiber fabric is infiltrated into SiC sol, and then is dried and is subjected to sintering treatment at a high temperature to prepare a SiC-carbon fiber fabric; and the SiC-carbon fiber fabric is infiltrated into a perhydropolysilazane precursor solution and is dried again, and then is subjected to sintering treatment in high-purity nitrogen at high temperature to prepare SiC-Si3N4-carbon fibers. The V50 value of theprepared SiC-Si3N4-carbon fabric can be as high as 550m / s or above. The bullet-proof vest fabric prepared by the invention has the characteristics of strong bullet impact resistance, light weight, thin fabric and the like, and has a high market popularization value.

Description

technical field [0001] The invention belongs to the technical field of preparation of body armor fabrics, in particular to a SiC-Si 3 N 4 -Carbon fiber composite body armor fabric and preparation method thereof. Background technique [0002] With the rapid development of social science and technology, police equipment technology is also increasingly developed. Among them, body armor is a very important police equipment. The quality of body armor affects the life safety of the wearer, and the fabric of body armor has an important impact on body armor. [0003] There are many materials for body armor fabrics, mainly including: inorganic materials represented by metals, two-dimensional flexible organic polymer materials, three-dimensional flexible materials, etc. Among them, inorganic materials represented by metals are relatively bulky, and it is inconvenient for the wearer to move; although two-dimensional flexible organic polymer materials are light, their impact resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/77D06M101/40
CPCD06M11/77D06M2101/40
Inventor 彭雄义陈卓张延董雄伟刘仰硕吕少仿于泽浩梁永红蔡映杰王强杨锋
Owner 深圳市汇泰锦纺织有限公司
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