Ultra-high molecular weight polyethylene fiber bulletproof composite material and preparation method

A bulletproof composite material and ultra-high molecular weight technology, which is applied in the field of high-strength bulletproof composite materials, can solve the problems of inability to form mechanical occlusion, difficult resin wetting, negative influence of UHMWPE fiber and resin adhesion, etc., to achieve fatigue resistance Good performance and environmental adaptability, simple steps, high specific modulus

Inactive Publication Date: 2018-07-24
UNIT 61489 OF PLA
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Problems solved by technology

However, polyethylene fiber is a non-polar material. After gel heat stretching, the molecular chain is fully stretched, and the interior of the fiber is highly oriented and highly crystalline, and a weak interface layer (about 10 -100nm), the UHM

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  • Ultra-high molecular weight polyethylene fiber bulletproof composite material and preparation method

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[0023] The present invention will be further described below in conjunction with the accompanying drawings and implementation cases. Of course, the following implementation cases should not be construed as limiting the present invention.

[0024] An ultra-high molecular weight polyethylene fiber bulletproof composite material, which is composed of modified polystyrene resin and ultra-high molecular weight polyethylene UHMWPE fiber. The modified polystyrene resin is made of high flexibility, elasticity, and filler compatibility. The flexible ethylene-vinyl acetate copolymer EVA is made by modifying polystyrene resin; the polymer obtained by free-radical polymerization of styrene, the monomer of the polystyrene resin, is colorless, transparent and has High rigidity, and can improve the wettability of modified resin to fiber.

[0025] The modified polystyrene resin is composed of ethylene vinyl acetate copolymer EVA, styrene ST, azobisisobutyronitrile AIBN, triallyl isocyanurate TAIC ...

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Abstract

The invention relates to the technical field of high-resistance bulletproof composite materials and discloses an ultra-high molecular weight polyethylene fiber bulletproof composite material and a preparation method. The bulletproof composite material is prepared by compounding modified polystyrene resin and ultrahigh molecular weight polyethylene (UHMWPE) fibers, wherein the modified polystyreneresin is prepared by modifying polystyrene resin by adopting an ethylene-vinyl acetate (EVA) copolymer having high flexibility, elasticity and packing compatibility; the polymer prepared by polymerizing monomer styrene free radicals of the polystyrene resin is colorless and transparent, has high rigidity and is capable of improving wettability of the modified resin on fibers. The bulletproof composite material disclosed by the invention has the advantages of low density, high specific strength and specific modulus, shock absorption property, fatigue resistance, excellent environmental suitability and the like and meets bulletproof requirements. The preparation method disclosed by the invention has the advantages of simple steps and high operability and is capable of realizing batch production.

Description

technical field [0001] The invention relates to the technical field of high-resistance bulletproof composite materials, in particular to an ultrahigh molecular weight polyethylene fiber bulletproof composite material and a preparation method thereof. Background technique [0002] In recent years, due to the continuous conflicts and wars in various regions of the world, the spread of terrorist incidents, and the rapid development of the military equipment industry, more and more attention has been paid to the development and research of bulletproof materials, and more and more varieties have been put into application, such as bulletproof vests , helmets, and protective parts for tanks, aircraft, ships, etc. [0003] Ultra-high molecular weight polyethylene fiber (UHMWPE), also known as ultra-high-strength-high-modulus polyethylene fiber (UHS-HMPE) or elongated chain polyethylene fiber (ECPE), was first successfully adopted by Pennings in the Netherlands in the 1970s. It is o...

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Application Information

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IPC IPC(8): D06M15/233D06M15/227D06M101/20
CPCD06M15/233D06M15/227D06M2101/20
Inventor 刘国权马栋良杨大峰查吕应陈昌兵郭良魏亚星毕利春刘炳琪周融胡宁静
Owner UNIT 61489 OF PLA
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