Waste fiber and fabric and inorganic particle four-layer fusion-casting composite stab-proof sheet and its preparation method and application

Abstract

The invention relates to a four-layer fusion-cast composite stab-proof sheet of waste fiber and fabric and inorganic particles, its preparation method and application. The composite anti-stab sheet is a four-ply structure with inorganic particles mixed with waste fiber cut sections and fabrics and spaced apart. It is a dense collision barrier layer, gradient stacked layer, fiber melt layer, high-density stacked layer and fabric melt layer formed by melting and die-casting. A composite anti-stab sheet with a five-layer structure. The preparation method is to mix the inorganic particles and the fiber cut pieces to lay the layer, then place a fabric sheet, spread the inorganic particles on it, and then cover a fabric sheet, and then use the melting point of the fiber cut sections to be melted first. After the inorganic particles are settled to obtain a gradient structure, the upper layer of inorganic particles is pressed into the fabric melt to form a composite anti-stab sheet with a five-layer structure. It has both a high-efficiency crash barrier and a tough anti-brittle fracture. It can be used as anti-puncture substrate for anti-terrorism, anti-riot, fire protection, anti-explosion, earthquake search and rescue, and national defense and military personal protective clothing.

Description

technical field [0001] The invention relates to individual anti-stab and anti-ballistic clothing materials, belonging to the field of functional technical textiles, in particular to a flexible, light-weight, high-efficiency resin composite sheet for anti-stab, cut and chop clothing and its preparation technology. Background technique [0002] Specialized protective equipment is required for anti-terrorism, anti-riot, firefighting, mutation accidents and other rescue and escape in peacetime, as well as in war or armed operations. The basic requirements of these equipment are: high-efficiency protective function and the requirement of light weight and softness without barriers to movement; and the latter is becoming more and more important and becoming more and more lightweight and soft. The control of guns in our country is relatively strict. Although there are controls on knives, they are easier to obtain and carry with you. Therefore, clothing in anti-terrorism and riot co...

AI Technical Summary

Problems solved by technology

For example, according to various bionic principles, stab-proof materials are obtained. A kind of scale spliced ​​stab-resistant clothing based on hollow micro-eggshells (patent publication number: CN108095222A) draws on the overlapping arrangement of animal scales, according to the upper and lower layers. Arrangement layout, all stab-proof substrates made of plastic materials are arranged horizontally, and there are multiple hollow semi-ellipsoid shells arranged side by side and staggered on the stab-proof body, which can reduce the weight of the stab-proof material, but the stab-proof effect Affected by uneven overlapping; the scale-type stab-proof chip and the stab-proof equipment made of it (patent publication number: CN105403106A) are based on the principle of bionics to design the structure of the stab-proof chip by referring to the scales of crocodiles, including "pyramids" and cross-sections It is a fan-shaped columnar member, which can well disperse the puncture of sharp tools such as knives, and the cutting effect is easy to cause accumulation and puncture; the application and preparation method of nanotube aggregates in carbon nanotube impact-resistant materials (patent publication number: WO2017128944( A1)) The hollow structure of carbon nanotubes is used to absorb a large amount of impact energy. The carbon nanotubes are macroscopically ordered and microscopically disordered, and strive to achieve the best anti-stab and explosion-proof effect, but the scale is too small, the material stiffness is insufficient, and the anti-stab The performance increase is small but the cost is increased; a stab-resistant clothing based on carbon fiber board splicing blocks (patent publication number: CN106858769A) adopts a plurality of carbon fiber boards and a stab-resistant sheet processed by CNC, and is sandwiched with a metal sheet, which is stitched and sealed by a machine The anti-stab material has excellent anti-stab performance but is too heavy and too hard, suitable for mosaic or discontinuous sheets

[0008] To sum up, some existing hard or soft anti-stab materials still generally have the defects of uniform structure, bulky, rigid and single damping.

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