Heat-resisting antistatic UHMWPE (ultra high molecular weight polyethylene) fiber and preparation method thereof

An ultra-high molecular weight, polyethylene fiber technology, applied in the field of fiber production, can solve the problems of low fiber draw ratio and poor fiber mechanical properties

Inactive Publication Date: 2015-06-17
JIANGSU SHENTAI SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, a large amount of initiator and grafting compound are added to the UHMWPE spinning dope and stretched after the grafting reaction is completed, so that the fiber draw ratio is low, and the mechanical properties of the final fiber are poor.

Method used

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  • Heat-resisting antistatic UHMWPE (ultra high molecular weight polyethylene) fiber and preparation method thereof
  • Heat-resisting antistatic UHMWPE (ultra high molecular weight polyethylene) fiber and preparation method thereof
  • Heat-resisting antistatic UHMWPE (ultra high molecular weight polyethylene) fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 7 parts by weight of ultra-high molecular weight polyethylene powder (Gur 4022 from Ticona, with a molecular weight range of 5 million), antioxidant 2,6-di-tert-butylphenol 0.07 parts by weight, and volatile solvent decalin 83 parts by weight , Swell at 90°C for 5 hours to form a fully swollen UHMWPE suspension A; then take 10 parts by weight of a mixture of volatile solvents decalin and kerosene (5 parts by weight each), and use high-speed stirring Stirring at 1000 rpm, while stirring, add 0.35 parts by weight of crosslinking agent ethyl 2-methacrylate, 0.21 parts by weight of initiator azobisisobutyronitrile, and 0.14 parts by weight of silver nanoparticles. And 0.35 parts by weight of curing agent maleic anhydride, stir for 10 minutes and mix uniformly to obtain solution B, add solution B to solution A, after mixing uniformly, pass through screw extrusion spinning, and then evaporate or volatilize under nitrogen protection The solvent in the fiber is then passed throu...

Embodiment 2

[0044] 7 parts by weight of ultra-high molecular weight polyethylene powder (Gur 4022 from Ticona, with a molecular weight range of 5 million), antioxidants 2, 4, 6-trit-butylphenol and triphenyl phosphite 0.007 parts by weight (7 : 3) and 85 parts by weight of the volatile solvent tetralin, swell at 90°C for 4 hours to form a fully swollen ultra-high molecular weight polyethylene suspension A; then take 10 parts by weight of the volatile solvent tetralin and use High-speed stirrer, stirring at 1200 rpm, while stirring, add 0.35 parts by weight of crosslinking agent p-toluenesulfonyl isocyanate, 0.21 parts by weight of initiator dibenzoyl peroxide, and 0.14 parts by weight of carbon nanotubes. And 0.35 parts by weight of curing agent phthalic anhydride, stir for 30 minutes and mix uniformly to obtain solution B, add solution B to solution A, after mixing uniformly, pass through screw extrusion spinning, and then evaporate under nitrogen protection or The solvent in the fiber is...

Embodiment 3

[0048] 7 parts by weight of ultra-high molecular weight polyethylene powder (Gur 4022 from Ticona, molecular weight range of 5 million), antioxidant 4, 4'-thiobis (6-tert-butyl-3-methylphenol) 0.3 Part by weight and 75 parts by weight of volatile solvent xylene and tetralin (2:1 ratio), swell at 95°C for 4 hours to form a fully swollen UHMWPE suspension A; then take 10 parts by weight To volatilize the solvent xylene, use a high-speed stirrer and stir at 1500 rpm. While stirring, add 0.35 parts by weight of the cross-linking agent ethoxylated trimethylolpropane triacrylate and 0.21 parts by weight of the initiator diphenylmethyl. Ketone, 0.14 parts by weight of graphene and 0.35 parts by weight of curing agent p-phenylenediamine were stirred for 30 minutes and mixed uniformly to obtain solution B. Solution B was added to solution A, after mixing uniformly, it was extruded and spun by screw. Then evaporate or volatilize the solvent in the fiber under the protection of nitrogen, ...

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Abstract

The invention provides a heat-resisting antistatic UHMWPE (ultra high molecular weight polyethylene) fiber and a preparation method thereof. The fiber includes UHMWPE powder, nano conductive particles, a cross-linking agent, a curing agent, an initiator and an antioxygen. The preparation method includes the following steps: the UHMWPE powder swells through a solvent and holes are formed; then a composite modifying agent formed through jointly soaking the cross-linking agent, the curing agent, the initiator, the antioxygen, the nano conductive particles and the solvent is added, and uniformly permeates the holes in the UHMWPE powder; after uniform mixing, spun silks are extruded out through a screw extruder; and the UHMWPE fiber is obtained through drafting after the solvent is removed; the heat-resisting antistatic UHMWPE fiber is obtained through irradiation crosslinking. The heat-resisting antistatic UHMWPE fiber has the comprehensive performance of wear resistance, heat resistance, static resistance, shock resistance, self-lubrication, corrosion resistance, low temperature resistance, sanitary and non-poisonous performance, less possibilities of adhesion and water absorption, small density and the like, is wide in application range and long in service life.

Description

Technical field [0001] The invention belongs to the technical field of fiber production, and specifically relates to a heat-resistant antistatic ultra-high molecular weight polyethylene fiber and a preparation method thereof. Background technique [0002] UHMWPE fiber (ultra-high molecular weight polyethylene fiber) is the third generation of high-performance fiber after carbon fiber and aramid fiber. It has many excellent properties such as chemical resistance and weather resistance, high energy absorption, low temperature resistance and electrical insulation. , Is widely used in military, aerospace and marine engineering and high-performance, lightweight composite materials and sports equipment and other fields to produce such as ropes, nets, medical equipment, fabrics, laminates, composite products and bulletproof products. [0003] Nano-modified UHMWPE has been studied by scholars at home and abroad. Krasnor et al. prepared UHMWPE / Fe composite materials. The iron particles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/09D01F1/10
Inventor 郭子贤王新鹏张竹标项朝阳何勇
Owner JIANGSU SHENTAI SCI & TECH DEV
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