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Hard puncture-proof material and preparation method thereof

A stab-proof, hard technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of looseness, easy deformation, easy generation of voids, easy deformation, etc., to achieve good stab-proof effect, Not easy to pierce, low cost effect

Inactive Publication Date: 2018-07-03
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The inventor found through research and analysis that the fiber fabrics of several existing stab-proof materials are only bonded on the surface, and the inside is still loose and easily deformable fibers, so it is easy to produce voids when subjected to external impact, and then cannot effectively achieve stab resistance.
Since only the surface is bonded, the existing prepreg tape material has a large amount of internal voids and is easily deformed by external force, so it cannot effectively achieve stab resistance. The film can weaken the voids in the material, but this solution can only improve the puncture resistance performance, and cannot fundamentally solve the problem of large deformation of the existing puncture-resistant materials

Method used

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  • Hard puncture-proof material and preparation method thereof

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preparation example Construction

[0033] The invention provides a hard stab-proof material and a preparation method thereof. The hard stab-proof material of the invention has small deformation, good stab-proof effect, is difficult to puncture, and has low cost.

[0034] See figure 1 and figure 2 , the hard anti-stab material of the present invention is made of such as figure 1 The multi-layer unidirectional continuous glass fiber reinforced thermoplastic prepreg tapes (1) and (2) are laminated and pressed at 0° / 90°, or as figure 2 As shown, it is composed of two layers of 0° / 90° composite material (3) and one layer of thermoplastic lightweight felt board (4). The ratio of the thickness of the thermoplastic lightweight felt board to the thickness of the 0° / 90° composite material is 1:(0.5-3):1.

[0035] Wherein, the unidirectional continuous glass fiber reinforced thermoplastic prepreg tape is a prepreg sheet in which continuous glass fibers are completely impregnated in thermoplastic resin.

[0036] The ...

Embodiment 1

[0044] The hard anti-stab material provided in this embodiment is made of 12 layers of unidirectional continuous glass fiber reinforced polypropylene prepreg tapes laminated and pressed at 0° / 90°.

[0045] The specific preparation method is: Lay 12 layers of 0.3mm thick unidirectional continuous glass fiber reinforced polypropylene prepreg tape (glass fiber mass percentage 70%) at 0° / 90°, put it into a flat press and heat it Press molding, the thickness of the finally obtained hard stab-proof material plate is 3.2mm. The hot-pressing process parameters are: hot-pressing temperature 180°C, hot-pressing time 3min, pressure 2MPa. The obtained hard stab-resistant material plate was tested according to the standard of GA68-2008 "Police Stab-resistant Clothing", and the test result was no penetration.

Embodiment 2

[0047] The hard anti-stab material provided in this embodiment is made of two layers of 0° / 90° composite material and one layer of thermoplastic lightweight felt board.

[0048] The specific preparation method is as follows: 6 layers of 0.3mm thick unidirectional continuous glass fiber reinforced polypropylene prepreg tape (glass fiber mass percentage 70%) are laid at 0° / 90°, and pre-pressed into 0° / 90° at 260°C. ° / 90° composite material sheet; then the material is laid according to (0° / 90°) composite material / thermoplastic lightweight felt board / (0° / 90°) composite material structure, in which the thickness of thermoplastic lightweight felt board is 1.2 mm, put it into a flat press after laying and hot-press forming, and the thickness of the finally obtained plate is 4mm; wherein, the mass ratio of glass fiber and polypropylene fiber or glass fiber and polypropylene wire drawing in the thermoplastic lightweight felt board is 1:0.7. The hot-pressing process parameters are: hot...

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Abstract

The invention discloses a hard puncture-proof material which is prepared by compounding and pressing multiple single-direction continuous glass fiber enhanced thermoplastic prepreg tapes 0 / 90-degree plied or is prepared by compounding and pressing two 0 / 90-degree composite materials and a thermoplastic light cutting board, wherein each single-direction continuous glass fiber enhanced thermoplasticprepreg tape is a prepreg tap sheet prepared by fully immersing continuous glass fibers in thermoplastic resin; the 0 / 90-degree composite material is a sheet which is 0 / 90-degree plied and compoundedand pressed by multiple single-direction continuous glass fiber enhanced thermoplastic prepreg tapes or a sheet obtained by thermal pressing glass fiber cloth and a thermoplastic resin tubular product; the thermoplastic light cutting board is a glass fiber / resin mixed felt layer prepared by uniformly mixing the glass fibers and polypropylene fibers or glass fibers and polypropylene drawn wires and then carrying out unloosening treatment, carding forming, cross lapping, needling to obtain the felt and rolling. The hard puncture-proof material is good in puncture-proof effect, difficult to puncture, low in cost and light in weight.

Description

technical field [0001] The invention relates to the technical field of safety protection, in particular to a hard anti-stab material and a preparation method thereof. Background technique [0002] As a special equipment, stab-resistant clothing is more and more widely used in the field of personal protection, and the core component of stab-resistant clothing is the stab-resistant material. The anti-stab material of existing anti-stab clothing is varied, and of a great variety. [0003] Patent document US6280546 discloses a "method for preparing cutting and wear-resistant laminates", which uses a roller winding process to bond LDPE or EVA film on the surface of ultra-high molecular weight polyethylene fiber fabrics to improve the cutting resistance of the material. The structure of this anti-stab material belongs to the soft anti-stab material. Although the ultra-high molecular weight polyethylene fiber fabric has excellent toughness, when it is subjected to external impact,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/32B32B27/36B32B27/34B32B17/02B32B17/04B32B17/12B32B7/08B32B37/06B32B38/10
CPCB32B7/08B32B17/02B32B17/04B32B27/32B32B27/34B32B27/365B32B37/06B32B38/10B32B2260/046
Inventor 杨桂生徐龙彬李兰杰
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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