Bulletproof composite material and preparation method and application thereof

Abstract

The invention discloses a bulletproof composite material, the bulletproof composite material is a resin-based composite material comprising polyimide fiber as a reinforcing body, wherein the mass ratio of the polyimide fiber is 60% to 90% by mass percentage, and the mass ratio of a resin matrix is 10% to 40%. The polyimide fiber is modified fiber which is subjected to interfacial treatment using an inert modifier, and the inert modifier is obtained by mixing aqueous thermoplastic polyurethane and aqueous polyolefin resin in a certain ratio. The invention also discloses a preparation method andapplication of the bulletproof composite material. The polyimide fiber is used as the reinforcing body, and the reinforcing body is subjected to the special interfacial treatment, infiltrated into the matrix resin according to a certain arrangement manner, and compounded with the resin matrix by a specific composite process, the prepared bulletproof composite material has the characteristics of good tensile strength and tensile modulus, good resistance to high and low temperature, light weight, and good flame retardancy and spinnability, and is suitable for preparation of soft and highly-comfortable-to-wear bulletproof clothing and bulletproof armor materials.

Description

technical field [0001] The invention relates to the field of bulletproof technology, in particular to a bulletproof composite material and its preparation method and application. Background technique [0002] At present, fiber-reinforced resin-based composite materials are mostly used in bulletproof composite materials, and ultra-high molecular weight polyethylene (UHMWPE) fibers and aramid fibers are mostly used as fibers. The low melting point of UHMWPE fibers limits its application in high temperature environments, and its poor interfacial adhesion increases the possibility of interfacial debonding, thus affecting its application in the field of bulletproof. Aramid fiber currently includes para-aramid fiber and heterocyclic aramid fiber (F-3). The strength of para-aramid fiber is low, the weight of the bulletproof armor made is heavy, and the light resistance is poor. When exposed to visible light and ultraviolet light, it will produce photodecomposition, resulting in th...

AI Technical Summary

Problems solved by technology

The strength of para-aramid fiber is low, the weight of the bulletproof armor made is heavy, and the light resistance is poor. When exposed to visible light and ultraviolet light, it will produce photodecomposition, resulting in the decline of mechanical properties and color change, which affects the bulletproof performance; heterocyclic aramid fiber Fiber (F-3), due to high raw material costs, low production efficiency, and limited application development, has led to high product prices, and is only used in military and a few civilian high-end fields

[0003] It can be seen that the above-mentioned existing bulletproof composite materials obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.

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