Ultrahigh molecular weight polyethylene UD non-woven fabric and photocuring preparation method

An ultra-high molecular weight, non-weft fabric technology, applied in the textile field, can solve the problems of loose fiber adhesion, poor elongation resistance, and low production efficiency, and achieve the effects of reducing the depth of the depression, improving the anti-ballistic performance, and high production efficiency

Pending Publication Date: 2018-09-21
湖北鼎中新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of UD non-weft fabric by the above two methods takes a long time, the production efficiency is low, and the production speed is about 4-5m / min; and the adhesion between the fibers in the obtained UD non-weft fabric is not tight, and the elongation resistance is poor.

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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  • Ultrahigh molecular weight polyethylene UD non-woven fabric and photocuring preparation method
  • Ultrahigh molecular weight polyethylene UD non-woven fabric and photocuring preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] like figure 1 As shown, the present embodiment provides a continuous production line for light curing of ultra-high molecular weight polyethylene UD non-weft cloth, including: a pay-off frame 1 arranged at the front end, with 1000 shafts installed in total; behind the pay-off frame There is a thread distribution frame 2 at the end, which is equipped with 1000 ceramic rings, and the fibers are evenly distributed in a width of 1600mm; 4 tension rollers 3 are arranged behind the thread branch frame, and the tension can be adjusted pneumatically; the tension The front traction roller 4 is arranged behind the roller, and is driven by the front traction motor 16 of frequency conversion speed regulation; a group of laying rollers 5 are arranged afterwards, and the ultra-high molecular weight polyethylene fibers are evenly and tightly distributed on the laying rollers; resin tanks 15 are arranged thereafter, The resin tank is equipped with a heating belt and a temperature contr...

Embodiment 2

[0031] This example provides an ultra-high molecular weight polyethylene UD non-weft fabric with a width of 1600mm, which includes ultra-high molecular weight polyethylene fibers and photocurable resin filled between the fibers, and is made by rapid curing through a photocuring process. The specific preparation method as follows:

[0032] (1) Mixing of photoinitiation system and resin system

[0033] Mix and disperse the photoinitiator system, photocurable prepolymer and active monomer evenly, and dissolve the photoinitiator system in the prepolymer and active monomer to form a uniform photocurable resin, which is filled into the resin tank;

[0034] Wherein the weight fraction ratio of each component of photoinitiating system, photocuring prepolymer and active monomer is:

[0035] Prepolymer: 80 parts of unsaturated polyester, 20 parts of epoxy resin;

[0036] Active monomer: 40 parts of styrene, 10 parts of pentaerythritol triacrylate;

[0037] Photoinitiation system: ben...

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 ultrahigh molecular weight polyethylene UD non-woven fabric and a photocuring preparation method. The method comprises the following steps: introducing ultrahigh molecular weight polyethylene fibers from a pay-out stand to a branching rack, introducing a fiber placement roller through carry over pinch rolls, introducing a gumming roller, fully impregnating fibers in light-cured resin, extruding the fibers fully impregnated in the light-cured resin through an extrusion roller to form single-layer impregnated fibers, entering a photocuring box and letting resin rapidly becured under the radiation of ultraviolet light, introducing into a wind-up roll through rear carry over pinch rolls to form the ultrahigh molecular weight polyethylene UD non-woven fabric. The produced UD non-woven fabric is coated with the light-cured resin, and under the radiation of a light source, the resin is rapidly cross-linked and cured so as to form the high-viscosity UD non-woven fabric. Meanwhile, resin among the fibers is rapidly cured under the light radiation to form a tightly combined integral body. Tensile strength and elastic modulus can be increased, sunken depth of a flak jacket is reduced, and nonpenetrative damage caused by impact is decreased. Then, the bulletproof property is enhanced.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to an ultra-high molecular weight polyethylene UD non-weft fabric and a photocuring preparation method thereof. Background technique [0002] Ultra-high molecular weight polyethylene fiber (UHMWPE for short) is a high-strength and high-modulus fiber with low density and high strength. The UD non-woven fabric made of ultra-high molecular weight polyethylene has soft hand feeling, low density, corrosion resistance, impact resistance, Excellent properties such as cutting resistance and strong toughness are widely used in bulletproof vests, stab-proof clothing, bulletproof helmets, and bulletproof armor plates. It is the bulletproof material with the highest strength and lightest specific gravity. [0003] There are two main ways to produce UD non-weft fabrics: one is to use PE fiber and PE film to bond thermally with thermoplastic resin, such as: the application date is De...

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): C08J5/24C08F283/01C08F283/10C08F2/48D06N7/06
CPCD06N7/00C08F2/48C08F283/01C08F283/10C08J5/24C08J2367/06C08J2423/06C08J2463/00Y02P20/10Y02P20/50
Inventor 李乾坤
Owner 湖北鼎中新材料有限公司
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