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A kind of hybrid fiber elastic fabric composite material bulletproof insert and preparation method thereof

A technology of mixed fibers and elastic fabrics, applied in protective equipment, chemical instruments and methods, offensive equipment, etc., can solve the problems of affecting the protection level of bulletproof plate products, large back bullet surface, poor mechanical properties in high temperature environment, etc., to achieve High-efficiency production, reduced delamination, and short molding process time

Active Publication Date: 2016-08-24
山东宽原新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ultra-high molecular weight polyethylene fiber (spun from polyethylene with an average molecular weight of more than 1 million) is another high-strength fiber that appears after aramid fiber. It has low density, strong toughness, good corrosion resistance, and molecular structure. The degree of orientation is high, and it has better bulletproof properties than aramid fiber, but UHMWPE fiber itself has unavoidable shortcomings, such as low melting point and poor mechanical properties in high temperature environments, and it will cause large bulges on the back bullet surface when used on bulletproof inserts Problem, so the bulletproof performance of pure UHMWPE fiber composite bulletproof inserts still needs to be improved. In addition, the preparation of UHMWPE composite bulletproof inserts still adopts traditional hot molding technology. The entire molding process generally takes about 1.5-3 hours. The temperature is generally in the range of 50-140 ℃, and the product molding is carried out under the process conditions close to the melting point of UHMWPE fiber for a long time, which will inevitably lead to a decrease in the mechanical strength of the fiber, so it directly affects the protection level of the bulletproof plate product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of hybrid fiber elastic fabric composite material bulletproof insert and preparation method thereof
  • A kind of hybrid fiber elastic fabric composite material bulletproof insert and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of the elastic fabric layer 1 of the hybrid fiber facing elastic fabric: UHMWPE fiber is used as the main fiber, and the ratio of UHMWPE fiber is 50%; aramid fiber is mixed with UHMWPE fiber, and the ratio of aramid fiber is 50%. The above-mentioned hybrid fibers are two-dimensionally woven with a plain weave structure, and the two-dimensional braids are arranged in a stacked manner, and the stacked thickness is 7 mm.

[0037] Preparation of mixed fiber intermediate elastic fabric layer 2: UHMWPE fiber is used as the basic material, and its ratio is 70%, mixed with aramid fiber, and the mixed ratio is 30%, and the middle elastic fabric layer is prepared by unidirectional fiber lamination. The fibers are multi-axially arranged at 0°, ±45° and 90°, and the laminate thickness is 6mm.

[0038] The preparation of the elastic fabric layer 3 of the hybrid fiber back elastic surface: UHMWPE fiber is used as the main fiber, and the carbon fiber is used as the hybrid ...

Embodiment 2

[0043] Preparation of the elastic fabric layer 1 of the hybrid fiber facing surface: UHMWPE fiber is used as the main fiber, and the proportion of UHMWPE fiber is 60%; basalt fiber is mixed with UHMWPE fiber, and the proportion of basalt fiber is 40%. The above-mentioned hybrid fibers are two-dimensionally woven with a twill structure, and the two-dimensional braids are arranged in a stacked manner, and the stacked thickness is 6 mm.

[0044] Preparation of hybrid fiber intermediate elastic fabric layer 2: UHMWPE fiber is used as the material, and the intermediate elastic fabric layer is prepared by stacking unidirectional fibers. The unidirectional fibers are arranged orthogonally at 0° and 90°, and the thickness of the stack is 8mm .

[0045] Preparation of hybrid fiber back elastic fabric layer 3: UHMWPE fiber is used as the main fiber and carbon fiber is used as hybrid fiber to prepare the three-dimensional elastic fabric layer on the back elastic surface, wherein the amou...

Embodiment 3

[0050] The preparation of the elastic fabric layer 1 of the mixed fiber facing surface: UHMWPE fiber is used as the main fiber, and the ratio of UHMWPE fiber is 55%; aramid fiber and basalt fiber are mixed with UHMWPE fiber, and the ratio between aramid fiber and basalt fiber is 1: 1. The total dosage of the two is 45%. The above-mentioned hybrid fibers are two-dimensionally woven with a plain weave structure and a twill weave structure. The ratio of the two fabric structures is 1:1. The two-dimensional braids are arranged in a laminated manner, and the laminated thickness is 4mm.

[0051] The preparation of the middle elastic fabric layer 2 of hybrid fiber: UHMWPE fiber is used as the basic material, and its ratio is 75%, mixed with aramid fiber and PBO fiber, the ratio of the two is 1:1, and the overall ratio of hybrid fiber is 25%. The middle elastic fabric layer is prepared by laminating the fibers. The unidirectional fibers are arranged in multiple directions at 0°, ±30°,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a hybrid fiber elastic web composite material bulletproof plug board and a preparation method thereof. The hybrid fiber elastic web composite material bulletproof plug board comprises a front portion hybrid fiber bullet facing face elastic web layer, a middle hybrid fiber elastic web layer, a rear portion hybrid fiber bullet carrying face elastic web layer and a hybrid fiber elastic web integral stitching structure located in the thickness direction of the bulletproof plug board. A 'two-dimension / single direction / three-dimension' stereoscopic weaving structure is formed by hybrid combination weaving, the dosage for fiber in different portions is adjusted, a certain elastic ductility of a integral web is obtained, meanwhile a vacuum importing technology is matched, thermoplastic / thermosetting composite resin is soaked evenly, an elastic web body pre-soaked web is formed, by using bigger elastic deformation characteristics of the pre-soaked web, a rapid hot stamping technology is adopted to be matched with a rapid cooling technology, the pre-soaked web is formed at a time to be the bulletproof plug board with the fixed curvature, the whole forming process is short in time, and the high efficiency production can be achieved.

Description

technical field [0001] The invention specifically relates to a hybrid fiber elastic fabric composite bulletproof board and a preparation method thereof. Background technique [0002] In the context of world peace and development, local riots and terrorist attacks within various countries have become the main environment for the emergence of shooting threats. In the face of such small-scale and small-scale riot attacks, military or police bulletproof inserts The application requirements have also begun to change in direction, gradually changing from the defense function against explosive fragments in a large-scale war environment to the protection function against different types of projectiles under the condition of a small number of light firearms. Therefore, the protection of bulletproof plate products focuses on light weapons such as pistols, miniature submachine guns or semi-automatic rifles. The protection characteristics not only require effective resistance to project...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41H1/02B32B5/26B32B37/02B32B37/10B29C70/40B29B13/06B29B15/10
Inventor 朱波王宝刚曹伟伟乔琨王永伟
Owner 山东宽原新材料科技有限公司
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