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Crosslinked polyethylene fiber with ultrahigh molecular weight and dry preparation method for crosslinked polyethylene fiber

An ultra-high molecular weight, polyethylene fiber technology, applied in dry spinning, spinning solution preparation, etc., can solve the mechanical strength, elongation, high temperature resistance, creep resistance, fracture, etc. of ultra-high molecular weight polyethylene fibers. problem, to achieve the effect of excellent heat resistance and creep resistance, high mechanical strength

Active Publication Date: 2015-08-19
JIANGSU SHENTAI SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high-energy radiation irradiation will cause a large number of breakage, disproportionation and dehydrogenation of ultra-high molecular weight polyethylene macromolecular chains, so that the mechanical strength, elongation, high temperature resistance, and creep resistance of ultra-high molecular weight polyethylene fibers performance is greatly reduced

Method used

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  • Crosslinked polyethylene fiber with ultrahigh molecular weight and dry preparation method for crosslinked polyethylene fiber
  • Crosslinked polyethylene fiber with ultrahigh molecular weight and dry preparation method for crosslinked polyethylene fiber
  • Crosslinked polyethylene fiber with ultrahigh molecular weight and dry preparation method for crosslinked polyethylene fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Take by weighing 3 parts by weight of ultra-high molecular weight polyethylene powder (Gur 4022 of Ticona Company, the molecular weight range is 5 million), crosslinking agent trimethylolpropane trimethacrylate and three (2-hydroxyethyl) isocyanurate 0.03 parts by weight of acid triacrylate, 0.003 parts by weight of p-benzoquinone as a free radical scavenger, 0.003 parts by weight of polymerization inhibitor 2-tert-butylhydroquinone, and 2,6-di-tert-butylphenol as an antioxidant 0.003 parts by weight, 0.003 parts by weight of polar modifier 2-phenoxyethyl acrylate and 100 parts by weight of volatile solvent decahydronaphthalene, fully mixing the above raw materials to prepare a spinning solution with a polyethylene concentration of 3wt% . In spinning equipment (produced by Jiangsu Shentai Technology Development Co., Ltd., spinning temperature: screw preheating zone: 60~110°C, melting zone: 150°C, metering zone: 160°C, compression zone: 170°C, box temperature : 170°C), ...

Embodiment 2

[0075] Take by weighing 3 parts by weight of ultra-high molecular weight polyethylene powder (Ultra-high molecular weight adopts Gur4022 of Ticona Company, the molecular weight range is 4.5 million), crosslinking agent is three (2-hydroxyethyl) isocyanurate triacrylate is 0.08 weight parts, free radical scavenger is 2,2-diphenyl-1-trinitrophenylhydrazine 0.004 parts by weight, antioxidant 2,6-di-tert-butylphenol and 4,4'-thiobis(6- 0.003 parts by weight of tert-butyl-3-methylphenol), 0.003 parts by weight of polar modifier lauric acid acrylate, and 100 parts by weight of decahydronaphthalene as a volatile solvent. The above raw materials were thoroughly mixed to prepare a spinning solution with a polyethylene concentration of 3 wt%. In spinning equipment (produced by Jiangsu Shentai Technology Development Co., Ltd., spinning temperature: screw preheating zone: 60~110°C, melting zone: 150°C, metering zone: 160°C, compression zone: 170°C, box temperature: 170°C), the spinning s...

Embodiment 3

[0078] Embodiment 3 (irradiation mode is gamma ray)

[0079] Take by weighing 3 parts by weight of ultra-high molecular weight polyethylene powder (the ultra-high molecular weight adopts Gur4022 of Ticona Company, the molecular weight range is 4 million), antioxidant 1010 is 0.01 parts by weight, and cross-linking agent is triallyl isocyanurate and ethyl alcohol. 0.04 parts by weight of oxidized trimethylolpropane triacrylate, 0.004 parts by weight of tetramethylbenzoquinone as a free radical scavenger, 0.003 parts by weight of p-hydroxyanisole as a polymerization inhibitor, and 4,4'-sulfur as an antioxidant 0.006 parts by weight of bis(6-tert-butyl-3-methylphenol), 0.003 parts by weight of cyclotrimethylolpropane acetal acrylate as a polar modifier, and 100 parts by weight of xylene as a volatile solvent. The above raw materials were thoroughly mixed to prepare a spinning solution with a polyethylene concentration of 3 wt%. In spinning equipment (produced by Jiangsu Shentai ...

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Abstract

The invention relates to a crosslinked polyethylene fiber with an ultrahigh molecular weight and a dry preparation method for the crosslinked polyethylene fiber. The drop rate of weight-average molecular weights of polyethylene with an ultrahigh molecular weight due to radiation or irradiation splitting is lower than 10%. The crosslinked polyethylene fiber and the dry preparation method have the advantages that the crosslinked polyethylene fiber with the ultrahigh molecular weight is excellent in heat resistance and creep resistance, high in mechanical strength and particularly applicable to manufacturing bulletproof vests and helmets with ultrahigh mechanical strength or heat-resistant bulletproof vests and helmets, light-weight armors, boat sails, cables, fishing nets, optical cable reinforcing bodies, parachutes, filter media, radar domes, wind power generation blades and the like.

Description

technical field [0001] The invention relates to polyethylene fiber and its preparation method, in particular to ultra-high molecular weight polyethylene fiber and its preparation method. Background technique [0002] UHMWPE fiber is the third-generation high-performance fiber after carbon fiber and aramid fiber. It has mechanical properties unmatched by other high-performance fibers. In addition, it also has excellent chemical resistance, weather resistance, and high energy. Absorption, impact resistance, low temperature resistance, wear resistance, bending resistance, cutting resistance, electrical insulation, electron beam or γ-ray penetration, water resistance and other excellent properties, are widely used in military bulletproof, safety protection, aerospace Nautical engineering and high-performance, lightweight composite materials and sports equipment, for example, for such as ropes, fishing nets, medical devices, fabrics, laminates, composite products and bulletproof ...

Claims

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Application Information

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IPC IPC(8): D01D5/04D01D1/02
CPCD01D1/02D01D5/04
Inventor 郭子贤王依民王新营倪建华王新鹏罗晓娟
Owner JIANGSU SHENTAI SCI & TECH DEV