Protective composite material molded by means of spraying and method for preparing protective composite material

Abstract

The invention discloses a method for preparing a protective composite material molded by means of spraying. The method includes steps of (1), treating the surfaces of high-performance fiber fabrics by the aid of organic solvents and drying the high-performance fiber fabrics; (2), covering the dried high-performance fiber fabrics with a layer of adhesive materials and positioning and fixing the adhesive materials; (3), spraying rigid particles on the surfaces of the fixed adhesive materials by the aid of a sand blasting machine to obtain composite fabric grey cloth; (4), carrying out hot-press treatment on the composite fabric grey cloth by the aid of continuous panel hot-press processes to obtain a protective composite material finished product. The method has the advantages that the protective composite material prepared by the aid of integral uniform spraying technologies has an excellent bulletproof function and is excellent in anti-prick performance; the thicknesses and the cost can be reduced on the premise that the protective ability is effectively improved and equipment is lightened as compared with existing materials.

Description

technical field [0001] The invention relates to the field of bulletproof and stab-proof materials, in particular to a spray-molded protective composite material and a preparation method thereof. Background technique [0002] With the development of social economy, social security issues have become more and more prominent, and the country and individuals are increasingly aware of the importance of security protection. In terms of police use, the police and other security groups will not only be hurt by bullets, but also threatened by the increasing number of sharp weapons such as knives and daggers. At present, ordinary bulletproof vests cannot fully meet the needs of the majority of public security officers for ultimate security, nor can they achieve beneficial anti-stab effects. In terms of civilian use, people's living standards continue to improve, and there are more and more types of personal protective equipment. Bullet-proof and stab-resistant clothing can play a rol...

AI Technical Summary

Problems solved by technology

There is inevitably a stab-proof and bullet-proof weak part between the metal ring and the metal plate assembly of the protective material, and it may cause secondary damage due to the "bounce" of the projectile hitting the metal ring and the plate and causing instability

CN 200710122028.2 discloses a soft bulletproof and stab-proof sheet made by impregnating a high-strength fiber fabric with a shear thickening liquid and superimposing a single layer or multiple layers. Although the shear thickening liquid is light and soft, it has excellent performance. But the cost is high, and the liquid is easy to flow during storage, and the anti-stab performance is greatly reduced

In addition, the patent CN 103358659 A discloses a preparation method of a shear thickening liquid / aramid fiber composite material, which "makes the shear thickening liquid and the aramid fiber fully compound through the extrusion of multiple sets of rollers, and then in the composite material The surface is sprayed with dimethyl silicone oil, and the intelligent impact-resistant material prepared has the characteristics of normal softness, impact hardening, excellent moisture resistance, and strong impact resistance. However, the composite material has poor heat resistance and is left standing for a long time. The shear thickening fluid will be delaminated, and the simethicone acts as a lubricant, making it easier for the bullet to penetrate the composite material, etc.

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