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Modified nylon for body armor

A technology of modified nylon and body armor, applied in the field of modified nylon, which can solve the problems of easy hydrolysis and product performance to be improved, and achieve the effect of ultra-high impact resistance, strong impact resistance and toughness

Inactive Publication Date: 2020-10-09
ZHEJIANG XITAI BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Poly(p-phenylene terephthalamide) (Kevlar KEVLAR) has important applications in national defense and military industry due to its good heat resistance, tensile strength and high strength. Degradation occurs; easy to hydrolyze, even if it is stored in a dry environment, it will absorb moisture in the air and gradually hydrolyze
[0006] Patent CN109369876A discloses to dehydrate MD-3000 and DL-4000D to less than 0.02 moisture respectively, then mix them evenly, add TDI and react at 80-100 degrees for 2-3 hours to obtain a prepolymer, and then add Curing agent and POP-50R, and then stirred at 80 degrees for 1-2 hours to obtain the desired product, but the product performance of this invention needs to be improved

Method used

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  • Modified nylon for body armor
  • Modified nylon for body armor
  • Modified nylon for body armor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A modified nylon for body armor is composed of the following materials: cross-linked polymer, nylon 1010, nano silicon carbide, titanium dioxide whiskers and antioxidant 1010.

[0024] The ratio by weight of nylon 1010: cross-linked polymer: nano-silicon carbide: titanium dioxide whiskers: antioxidant 1010 is 9.0:1:0.5:0.5:0.05.

[0025] Wherein the cross-linked polymer is made of ultra-high molecular weight polyethylene (UHMWPE), polyamide I, and cumene peroxide (DCP) in a molar ratio of 1:1:0.05, and the method is as follows:

[0026] Use a small amount of absolute ethanol to mix a certain mass of UHMWPE and polyamide I at 60°C for 30 minutes, then add DCP, keep it warm for 1 hour, wash and dry to obtain a cross-linked polymer.

[0027] The structural formula of the polyamide I is as follows:

[0028]

[0029] n is 100

[0030] The preparation method of the modified nylon used for body armor is as follows:

[0031] Step 1: Drying: Dry the cross-linked polymer, n...

Embodiment 2

[0035] A modified nylon for body armor is composed of the following materials: cross-linked polymer, nylon 1010, nano silicon carbide, titanium dioxide whiskers and antioxidant 1010.

[0036] The ratio by weight of nylon 1010: cross-linked polymer: nano-silicon carbide: titanium dioxide whiskers: antioxidant 1010 is 8.8:1:0.5:0.5:0.05.

[0037] The cross-linked polymer is made of ultra-high molecular weight polyethylene (UHMWPE), polyamide I, and cumene peroxide (DCP) at a molar ratio of 1:1:0.05, and the method is as follows:

[0038] Use a small amount of absolute ethanol to mix a certain quality of UHMWPE and polyamide I uniformly at 60°C and stir for 30 minutes, add DCP, keep it warm for 1 hour, wash and dry to obtain a cross-linked polymer.

[0039] The structural formula of the polyamide I is as follows:

[0040]

[0041] n is 100

[0042] The preparation method of the modified nylon used for body armor is as follows:

[0043] Step 1: Drying: Dry the cross-linked p...

Embodiment 3

[0047] A modified nylon for body armor is composed of the following materials: cross-linked polymer, nylon 1010, nano silicon carbide, titanium dioxide whiskers and antioxidant 1010.

[0048] The ratio by weight of nylon 1010: cross-linked polymer: nano-silicon carbide: titanium dioxide whiskers: antioxidant 1010 is 8.6:1:0.5:0.5:0.05.

[0049] The cross-linked polymer is made of ultra-high molecular weight polyethylene (UHMWPE), polyamide I, and cumene peroxide (DCP) at a molar ratio of 1:1:0.05, and the method is as follows:

[0050] Use a small amount of absolute ethanol to mix a certain quality of UHMWPE and polyamide I uniformly at 60°C and stir for 30 minutes, add DCP, keep it warm for 1 hour, wash and dry to obtain a cross-linked polymer.

[0051] The structural formula of the polyamide I is as follows:

[0052]

[0053] n is 100

[0054] The preparation method of the modified nylon used for body armor is as follows:

[0055]Step 1: Drying: Dry the cross-linked po...

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PUM

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Abstract

The invention relates to the technical field of body armor manufacturing, in particular to modified nylon for producing a body armor. The invention discloses modified nylon for a body armor. The modified nylon is prepared from the following substances in parts by weight: nylon 1010, a cross-linked polymer, nano silicon carbide, titanium dioxide whiskers and an antioxidant 1010 in a ratio of (8-9):1: 0.5: 0.5: 0.05, wherein the cross-linked polymer is prepared from ultra-high molecular weight polyethylene (UHMWPE), polyamide I and dicumyl peroxide (DCP) according to a molar ratio of 1: 1: 0.05. The polyamide I used in the invention has mechanical properties similar to those of Kevlar fibers, is subjected to cross-linking modification with UHMWPE to obtain a cross-linked polymer, and has ultrahigh impact resistance, wear resistance, chemical corrosion resistance and other properties. The polyamide I and the nylon 1010 have compatibility, so that subsequent blending modification is facilitated. The nylon modified by the cross-linked polymer, the nano silicon carbide and the titanium dioxide whiskers has higher impact resistance and toughness, and the tensile strength, rigidity and heat resistance of the nylon are not reduced.

Description

technical field [0001] The invention relates to the technical field of body armor manufacturing, in particular to a modified nylon used for producing body armor. Background technique [0002] Bulletproof vest, also known as bulletproof vest, bulletproof vest, bulletproof vest, bulletproof clothing, individual body armor, etc., is used to protect the human body from bullets or shrapnel. Body armor is mainly composed of two parts: a jacket and a bulletproof layer. Clothes are often made of chemical fiber fabrics. The bulletproof layer is made of metal (special steel, aluminum alloy, titanium alloy), ceramic sheet (corundum, boron carbide, silicon carbide, aluminum oxide), glass fiber reinforced plastic, nylon (PA), Kevlar (KEVLAR), ultra-high molecular weight polyethylene Fiber (DOYENTRONTEX Fiber), liquid protective materials and other materials constitute a single or composite protective structure. The bulletproof layer can absorb the kinetic energy of bullets or shrapnel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L23/06C08K3/34C08K7/08C08K5/134C08K5/14C08K13/04C08J3/24
CPCC08J3/246C08J2323/06C08J2377/06C08K2201/011C08L77/06C08L2205/025C08L2205/03C08L2207/068C08L23/06C08K3/34C08K7/08C08K5/1345C08K5/14C08K13/04
Inventor 朱冬祥
Owner ZHEJIANG XITAI BIOTECHNOLOGY CO LTD