Flexible puncture-proof material with composite structure and preparation method of flexible puncture-proof material

Abstract

The invention discloses a flexible puncture-proof material with a composite structure and a preparation method of the flexible puncture-proof material. An anti-cutting, anti-piercing and energy-absorbing and anti-deformation composite structure is adopted, and high-performance fibers and metal fibers are used as raw materials to prepare wrapped yarns and fabrics so as to improve the anti-cutting property of materials; secondarily, high-performance fibers are used as raw materials to prepare a three-dimensional woven fabric, self-made shear thickening liquid soaks the three-dimensional woven fabric to improve an energy absorbing property, a puncture-proof property and the like of the material; and finally, high-performance fibers are used as raw materials to prepare a two-dimensional wovenfabric by plain weave, backed weave or double weave, and the two-dimensional woven fabric is combined to thermoplastic resin by hot pressing to form an anti-deformation layer. The flexible puncture-proof material with the composite structure prepared by the method has the integrated characteristics of lightweight, softness, comfortableness to wear, good puncture-proof effect and the like, under the effect of 24 J impact energy, the puncture-proof materials is not punctured, the deformation depth of a backing material is less than or equal to 20 mm, and the flexible puncture-proof material withthe composite structure can be widely used in the fields of police safety departments and civil use, and has quite good development prospect.

Description

technical field [0001] The invention relates to the technical field of protective equipment research, in particular to a soft anti-stab material with a composite structure and a preparation method thereof. Background technique [0002] In recent years, international terrorist activities have been rampant, and extremist organizations and terrorists have committed many violent attacks around the world. In foreign countries, terrorist activities often use explosions and other terrorist attacks. For example, on November 13, 2015, multiple explosions and terrorist attacks occurred in the Paris area, killing at least 130 people and injuring more than 350; on March 22, 2016, Belgium At least 30 people were killed and 300 injured in successive explosions at Zaventem Airport on the outskirts of Brussels and a subway station near the EU headquarters in the city. In our country, due to the strict restrictions on the use of firearms, threats from sharp weapons such as daggers and bayon...

AI Technical Summary

Problems solved by technology

Early rigid and semi-rigid stab-proof materials were mainly made of metal materials or composites of metal and fiber fabrics to make stab-resistant products. These stab-resistant materials have excellent stab-resistant performance, but they generally have disadvantages such as bulkiness and inflexibility in wearing. , which seriously limits its promotion and commercial application value

In the 21st century, soft stab-resistant materials made of high-performance fibers such as UHMWPE and Kevlar and their composite materials have become the main force in the field of protection. Their biggest advantage is that they are lighter in weight than hard and semi-rigid stab-resistant materials. There are many, but there are still some shortcomings such as heavy weight, hard texture, and poor wearing comfort.