Multilayered functional prepreg fabric as well as preparation method and application thereof

A fabric and pre-impregnation technology, applied in applications, other household appliances, chemical instruments and methods, etc., can solve the problems of cumbersome preparation process, unfavorable large-scale production, impact resistance, poor puncture performance, etc., and achieve simple preparation process, The effect of broad practical application value and broad industrial application prospect

Pending Publication Date: 2018-07-13
SHANDONG ZHONGHENG CARBON FIBER TECH DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. CN102653133A discloses a folding structure of a prepreg fabric and its forming method, by manually or mechanically pressing the creases of the fabric pre-impregnated with a thermosetting resin, performing pre-curing and stretching after folding, and forming unit cells and folding angles The folding structure with variable parameters has the characteristics of multi-level, light weight, strong parameter design, adjustable three-dimensional stiffness, and transparent overall structure. However, the above-mentioned preparation process is cumbersome, which is not conducive to industrial scale production
At the same time, because only the fabric pre-impregnated with thermosetting resin is used for folding treatment, the prepared product has poor impact resistance and puncture performance

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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  • Multilayered functional prepreg fabric as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0035] A multi-layer functional prepreg fabric structure is composed of a puncture-resistant layer of short-fiber non-woven fabric, an impact-resistant layer of unidirectional fiber, and a high-rigidity layer of two-dimensional fabric. Among them, the puncture-resistant layer of the short-fiber non-woven fabric is composed of a 4cm-long Kevlar 49 aramid fiber carding mesh to form a non-woven fabric structure, and the above-mentioned non-woven fabric is impregnated with a polyurethane resin glue solution, and the resin content in the fabric is 20%. The thickness is 0.04mm; the unidirectional fiber impact-resistant layer is composed of UHMWPE fiber and T300 carbon fiber in a mixed unidirectional arrangement, where the ratio of UHMWPE fiber to T300 carbon fiber is 4:1, and the above-mentioned unidirectional fiber fabric layer is impregnated with polyethylene resin emulsion. The resin content in the unidirectional fiber layer is 26%, and the thickness of the layer is 0.05 mm; the t...

Embodiment 2

[0038] A multi-layer functional prepreg fabric structure is composed of a puncture-resistant layer of short-fiber non-woven fabric, an impact-resistant layer of unidirectional fiber, and a high-rigidity layer of two-dimensional fabric. Among them, the puncture-resistant layer of the short fiber non-woven fabric is composed of a 5cm-long Kevlar 29 aramid fiber card to form a non-woven fabric structure, and the above-mentioned non-woven fabric is impregnated with polyethylene emulsion glue, and the resin content in the fabric is 18%. The thickness of the layer is 0.01mm; the unidirectional fiber impact-resistant layer is composed of UHMWPE fiber and E glass fiber mixed in one direction, and the ratio of UHMWPE fiber to E glass fiber is 2:1, and the above unidirectional fiber is impregnated with polypropylene resin emulsion For the fabric layer, the resin content in the unidirectional fiber layer is 21%, and the thickness of the layer is 0.02mm; the two-dimensional fabric layer is...

Embodiment 3

[0041] A multi-layer functional prepreg fabric structure is composed of a puncture-resistant layer of short-fiber non-woven fabric, an impact-resistant layer of unidirectional fiber, and a high-rigidity layer of two-dimensional fabric. Among them, the puncture-resistant layer of short-fiber non-woven fabric is composed of UHMWPE fiber carding with a length of 6cm to form a non-woven fabric structure, and the above-mentioned non-woven fabric is impregnated with polymethyl methacrylate resin glue, and the resin content in the fabric is 15%. The thickness is 0.02mm; the unidirectional fiber impact-resistant layer is composed of UHMWPE fiber and T800 carbon fiber hybrid unidirectional arrangement, in which the ratio of UHMWPE fiber to T800 carbon fiber is 3:1, and the polyurethane resin emulsion is used to impregnate the above unidirectional fiber fabric layer. The resin content in the fiber layer is 20%, and the thickness of the layer is 0.03mm; the two-dimensional fabric layer is...

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 discloses a multilayered functional prepreg fabric as well as a preparation method and application thereof. The prepreg fabric is formed by superposing three structure layers, namely anupper surface short-fiber non-woven fabric layer, an intermediate unidirectional fiber layer and a lower surface two-dimensional fabric layer, wherein the thicknesses of the upper surface short-fibernon-woven fabric layer, the intermediate unidirectional fiber layer and the lower surface two-dimensional fabric layer are controlled in a range of 0.01-0.05mm. According to the three-layer structure,the short-fiber non-woven fabric layer provides overall penetration resistance of the prepreg, the intermediate unidirectional fiber layer provides the overall high-speed impact energy absorption characteristics of the prepreg, and the lower surface two-dimensional fabric layer provides rigid deformation resistance of the overall prepreg. The synergistic effect of functional characteristics of the three-layer structure provides a guarantee for improving the overall integrated bulletproof protection characteristics.

Description

technical field [0001] The invention belongs to the technical field of high-performance fiber composite prepreg fabrics, and in particular relates to a multilayer functional prepreg fabric and its preparation method and application. Background technique [0002] As an intermediate raw material for high-performance fiber composite materials, composite prepreg fabrics have become an important guarantee for the comprehensive characteristics of various composite materials to exert their advantages. However, the stable comprehensive performance of structural composite materials generally requires a variety of fibers to be mixed and used at the same time. Reinforce the independent physical properties of fibers to achieve instantaneous and effective protection of comprehensive physical properties such as high strength, high stiffness, impact resistance, and tear resistance. [0003] In order to exert a variety of comprehensive mechanical and physical properties, the current prepreg...

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 Applications(China)
IPC IPC(8): B32B27/04B32B9/00B32B17/02B32B27/02B32B27/32B32B27/34B32B27/12B32B9/04B32B17/12B32B37/12F41H5/04
CPCF41H5/04B32B5/26B32B9/047B32B17/067B32B27/12B32B37/12B32B2307/50B32B2307/5825B32B2307/558B32B2307/734B32B2250/20B32B2260/046B32B2260/023B32B2262/101B32B2262/10B32B2262/106B32B2262/0269B32B2262/0253B32B2571/02
Inventor 朱波王成国曹伟伟王永伟刘玉兰赵圣尧
Owner SHANDONG ZHONGHENG CARBON FIBER TECH DEV CO LTD
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