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Aramid fiber laid fabric as well as preparation method and application thereof

A technology of aramid fiber and weft-free fabric, which is applied in the direction of fiber type, fiber treatment, non-woven fabrics, etc., can solve the problems of increasing the load of general soldiers and increasing the cost of body armor, so as to improve the appearance quality of cloth samples and shorten the drying time. The effect of reducing the time and degree of sagging

Active Publication Date: 2011-09-21
BEIJING AEROSPACE RATE MECHANICAL & ELECTRICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bulletproof protective gear made of this product cannot effectively "passivate" the impact of bullets, and often can only achieve bulletproof effects by adding layers of non-woven fabrics, but this will increase the load on general soldiers and police when they use it , it will also increase the cost of body armor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Aramid fiber laid fabric as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 700g of ZF-101 type acrylate adhesive with a solid content of 50%, add 300g of water to a beaker, and stir evenly to obtain an aqueous solution of acrylate adhesive with a solid content of 35%. Weigh 5g of aziridine curing agent, fully mix it with 5g of water, and then add it dropwise to the above-mentioned aqueous adhesive solution while stirring and mixing. Then weigh the defoamer composed of 15g of ethylene glycol butyl ether and 5g of diethylene glycol butyl ether, add it into the above-mentioned beaker and mix well to obtain the glue.

[0038] The aramid fiber is wound in parallel on the winding machine, and then the fiber is immersed in the above glue solution, and the yarn is spread by a specific spinning equipment. The adhesive used in this example is the above-mentioned modified acrylic adhesive. After dipping, spread the glue evenly with a squeegee, and dry it under a 50°C electric resistance wire. After it is completely dry, rotate the cloth sample 90°, ...

Embodiment 2

[0042] The difference from Example 1 is that the acrylate adhesive in Example 1 is changed to 500g, 500g of water is added, and the rest of the conditions are the same as in Example 1.

[0043] The drying time of the above-mentioned cloth samples, the drying time of the two-layer interlaced cloth samples, and the apparent quality of the cloth samples were tested and recorded, and various anti-ballistic properties were tested. The results are shown in Table 1.

Embodiment 3

[0045] The difference from Example 1 is that the adhesive in Example 1 is changed to UR303GNP polyurethane adhesive, and the rest of the conditions are the same as in Example 1.

[0046] The drying time of the above-mentioned cloth samples, the drying time of the two-layer interlaced cloth samples, and the apparent quality of the cloth samples were tested and recorded, and various anti-ballistic properties were tested. The results are shown in Table 1.

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Abstract

The invention provides an aramid fiber laid fabric which is prepared from aramid fibers through processes of filament expanding, gluing and drying. In the gluing process, the used composite glue solution contains an adhesive and a curing agent, and the adhesion and the creep resistance between the adhesive and the aramid fibers can be improved due to the addition of the curing agent to effectively passivate impact force of bullets, so that the aramid fiber laid fabric has higher impact-resistant performance. The mass ratio of the adhesive water solution and the curing agent in the composite glue solution is 100:0.2-2, and the mass ratio of the curing agent, preferentially aziridine curing agent, to the adhesive water solution is 0.5-1.0:100. In the invention, the composite glue solution further contains a defoaming agent for improving the surface morphology of a fabric swatch. The invention simultaneously improves the preparation method of the aramid fiber laid fabric to increase the production efficiency by over 25 percent. A shooting test shows that the elasticity-resistant performance of the laminated laid fabric can be improved by about 20 percent by adopting the technical scheme of the invention.

Description

technical field [0001] The invention relates to the field of special fiber textiles, in particular to an improvement to an aramid fiber non-weft cloth, and a preparation method and application of the aramid fiber non-weft cloth. Background technique [0002] Aramid fiber is an organic fiber composed of aromatic rings and amide bonds on the main chain of a macromolecule, which was first developed by DuPont Company of the United States. In 1974, the United States Trade Federation named this fiber "aramid fibers", which is defined as: at least 85% of the amide chains (-CONH-) are directly connected to two benzene rings. The full name of aramid fiber is "poly-p-phenylene terephthalamide". It is a new type of high-tech synthetic fiber with excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, and light weight. The strength is 5-6 times that of steel wire, the modulus is 2-3 times that of steel wire or glass fiber...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/58D06M15/263D06M15/564D06M101/36D04H1/4342
Inventor 潘智勇梁立吴中伟汤伟赵前进刘元坤张聪张慧
Owner BEIJING AEROSPACE RATE MECHANICAL & ELECTRICAL ENG CO LTD
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