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Stab-resistant bulletproof fabric based on shear thickening fluid and preparation method of stab-resistant bulletproof fabric

A bulletproof fabric and fluid technology, applied in textiles, papermaking, textile decoration, etc., can solve the problems of difficult to maintain a fixed shape, prone to side leakage, poor stability, etc., to enhance the force, reduce the number of composite layers, the ratio of The effect of high stiffness

Active Publication Date: 2022-05-17
湖北金龙新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the shear thickening fluid solution has unique advantages, due to its strong fluidity, it is difficult to maintain a fixed shape. The bottom of the container holding the liquid is slightly damaged, and all the liquid will flow out. The stability is poor, and side leakage is prone to occur in actual engineering. Or gradually lost with the extension of the term

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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  • Stab-resistant bulletproof fabric based on shear thickening fluid and preparation method of stab-resistant bulletproof fabric
  • Stab-resistant bulletproof fabric based on shear thickening fluid and preparation method of stab-resistant bulletproof fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A stab-proof and bullet-proof fabric based on shear thickening fluid, which is composed of four parts: UHMWPE fiber fabric, kapok fiber powder modified PTFE coating slurry, shear thickening fluid, and 0.8mm antibacterial PA short fiber fluff. The specific preparation is as follows:

[0043] (1) Evenly scrape and coat a layer of PTFE modified coating slurry containing kapok fiber powder on the front of the base fabric, and immediately flock the coating surface through a high-voltage electrostatic zone. The short fiber fluff needs to be dried at 120°C for 2 hours, the electric field voltage in the high-voltage electrostatic area is 35 kV, and the pole distance is 10 cm, and then the fabric is sent to the dryer for drying, cooling, and velvet absorption;

[0044] (2) Evenly scrape a layer of modified coating slurry containing kapok fiber powder on the reverse side of the base fabric, and immediately flock the coating surface through the high-voltage electrostatic area. The...

Embodiment 2

[0056] A stab-proof and bullet-proof fabric based on shear thickening fluid, which is composed of plain aramid woven fabric, PA fiber powder modified PU coating slurry, shear thickening fluid, and 1.2mm flame-retardant PP short fiber fluff. made. The shear thickening fluid is specifically prepared as follows:

[0057] 1) Treat nano-SiO with silane coupling agent KH560 2 Particles, to prevent the agglomeration of nanoparticles;

[0058] 2) The prepared SiO 2 The powder was dried in a blast drying oven at 90°C for 12 hours, and then dried at 120°C to constant weight;

[0059] 3) SiO 2 The powder and agate balls are put into a ball mill tank according to a certain ball-to-material ratio for dry powder ball milling for 0.5h, and a certain quality of modified SiO 2 Particles are placed in a ball mill tank, added PEG200 for ball milling, and a certain mass of powder is added every 0.5h until good shear thickening performance occurs, and SiO with a mass fraction of 20% is obta...

Embodiment 3

[0073] In the embodiment of the present invention, a stab-proof and bullet-proof fabric based on shear thickening fluid is composed of plain nylon fiber fabric, graphene oxide modified PU coating slurry, shear thickening fluid, 1.0mm antistatic PA short fiber It is made of fluff and graphene oxide modified PU film. The specific preparation is as follows:

[0074] (1) Evenly scrape a layer of PU coating slurry containing graphene oxide on the front of the base fabric and immediately flock the coating surface through a high-voltage electrostatic zone. Graphene oxide accounts for 2wt% of the PU coating adhesive, and short fibers The fluff needs to be dried at 120°C for 2 hours, the electric field voltage in the high-voltage electrostatic area is 40 kV, and the pole distance is 15 cm, and then the fabric is sent to the dryer for drying, cooling, and fluff absorption;

[0075] (2) Evenly scrape the PU coating slurry containing graphene oxide on the reverse side of the fabric, and ...

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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Abstract

The invention discloses a stab-resistant bulletproof fabric based on shear thickening fluid and a preparation method of the stab-resistant bulletproof fabric. The stab-resistant bulletproof fabric is formed by compounding four parts, namely base cloth, a functional fiber powder modified coating agent, the shear thickening fluid and short fiber fluff. According to the invention, the flocked fabric is immersed in the shear thickening fluid, the interior and periphery of the vertically arranged functional short fibers are wrapped by the shear thickening fluid, and after drying, cooling and down absorption, secondary coating or film covering is carried out to obtain the finished fabric. According to the invention, the vertical fiber array short fluff layer is used as an accommodating and supporting area, and the functional fiber powder modified coatings on the upper and lower sides and the seals on the two sides are combined, so that a shear thickening fluid area is more stable; the short fibers can play a role of a pin in the coating to enhance the acting force between the surface of the fabric and the coating, so that the wear resistance and other mechanical properties of the coated fabric are improved.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a stab-proof and bullet-proof fabric based on shear thickening fluid and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, various types of lethal weapons continue to appear. Bulletproof materials range from the initial metal materials to aluminum alloy materials, until the current high-performance fiber materials, which require high specific strength, low density, high specific modulus, etc. Therefore, bulletproof composite materials with various comprehensive properties have been greatly developed. High-performance fiber materials have the characteristics of high strength and high modulus, good impact resistance, and high protection performance, and have been widely used in the field of human body bulletproof. When the high-performance fiber fabric is subjected to high-speed impact, the fiber at the impact point is st...

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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IPC IPC(8): D06N3/04D06N3/06D06N3/14D06N3/00D06N3/18D06Q1/14
CPCD06N3/042D06N3/047D06N3/06D06N3/065D06N3/14D06N3/04D06N3/142D06N3/0063D06N3/18D06Q1/14D06N2209/10D06N2211/00
Inventor 饶金才邹汉涛高超邹汉勇聂福山
Owner 湖北金龙新材料有限公司
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