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A kind of colored high-strength polyethylene fiber and preparation method thereof

A high-strength polyethylene and polyethylene fiber technology, applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve heat resistance, poor creep resistance and oxidation resistance, low critical shear rate, and difficult molding processing and other problems, to achieve good compatibility, easy dyeing, and improve color fastness

Active Publication Date: 2020-11-24
江苏智芯新能源装备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the ultra-high molecular weight polyethylene fiber contains a large number of non-polar groups in its macromolecular chain, there are no other polar functional groups, and the condensed state highly oriented crystal structure is dense and convergent. Unlike other fiber dyeing, there is no dye seat, Ordinary dye molecules cannot be combined with it for dyeing, so that its application range in military, aerospace, marine, and civilian fields is limited by dyeing problems. The shear rate is low, and melt fracture is easy to occur, which brings difficulties to the molding process. In addition, it also has the problems of low surface hardness, poor heat resistance, creep resistance, and oxidation resistance.
[0004] The dyeing methods for high-strength polyethylene fibers in the prior art mainly include dope dyeing, conventional dyeing, development of specific dye structures, and special dyeing processes. incomplete defect

Method used

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  • A kind of colored high-strength polyethylene fiber and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of colored high-strength polyethylene fibers, comprising the steps of:

[0036] S1: 10kg of ultra-high molecular weight polyethylene, 0.5kg of surface-modified nano-boron fiber, 2kg of ultra-high molecular weight polyethylene fiber grafted on the surface of glycerol methacrylate, 0.1kg of Lanna free and easy green B, dodecylbenzenesulfonic acid 0.2 kg of sodium was added to 70 kg of tetralin to form a dispersion, and then the dispersion was added to a twin-screw extruder for heating to make it swell and dissolve, and the temperature was controlled at 250°C to obtain spinning stock solution A;

[0037] S2: Add 0.5kg of surface-modified nano-boron fibers, 10kg of ultra-high molecular weight polyethylene fibers grafted on the surface of glyceryl methacrylate, 0.1kg of Lanna free and easy green B, and 0.2kg of sodium dodecylbenzenesulfonate into tetrahydro Form a dispersion liquid in 70 kg of naphthalene, then add the dispersion liquid to the twin-screw...

Embodiment 2

[0047] A preparation method of colored high-strength polyethylene fibers, comprising the steps of:

[0048] S1: 10kg of ultra-high molecular weight polyethylene, 0.6kg of surface-modified nano-boron fiber, 2kg of ultra-high molecular weight polyethylene fiber grafted on the surface of glyceryl methacrylate, 0.15kg of Lanna free and easy yellow 4GN, polyoxypropylene polyvinyl glyceryl ether 0.2 kg was added to 80 kg of decahydronaphthalene to form a dispersion liquid, and then the dispersion liquid was added to a twin-screw extruder and heated to make it swell and dissolve, and the temperature was controlled at 260 ° C to obtain the spinning stock solution A;

[0049] S2: Add 0.6 kg of surface-modified nano-boron fibers, 10 kg of ultra-high molecular weight polyethylene fibers grafted on the surface of glyceryl methacrylate, 0.15 kg of Lanna Sata Yellow 4GN, and 0.2 kg of polyoxypropylene polyethylene glyceryl ether to decahydronaphthalene Form a dispersion liquid in 80kg, then...

Embodiment 3

[0059] A preparation method of colored high-strength polyethylene fibers, comprising the steps of:

[0060] S1: 10kg of ultra-high molecular weight polyethylene, 0.7kg of surface-modified nano boron fiber, 2kg of ultra-high molecular weight polyethylene fiber grafted on the surface of glycerol methacrylate, 0.2kg of phthalocyanine blue, and 0.2kg of nonylphenol polyoxyethylene ether Add it into 85kg of white oil to form a dispersion liquid, then add the dispersion liquid into a twin-screw extruder and heat it to make it swell and dissolve, and the temperature is controlled at 290°C to obtain the spinning stock solution A;

[0061] S2: Add 0.8 kg of surface-modified nano-boron fibers, 10 kg of ultra-high molecular weight polyethylene fibers grafted on the surface of glyceryl methacrylate, 0.2 kg of phthalocyanine blue, and 0.2 kg of nonylphenol polyoxyethylene ether to 85 kg of white oil to form Dispersion liquid, then add the dispersion liquid into the twin-screw extruder and ...

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Abstract

The invention discloses a preparation method of colored high-strength polyethylene fibers. The preparation method comprises the following steps: (I) preparing a spinning solution A; (II) preparing a spinning solution B; (III) preparing high-strength polyethylene fibers; (IV) spraying and modifying the high-strength polyethylene fibers; and (V) performing ultraviolet treatment. The invention further discloses colored high-strength polyethylene fibers prepared according to the preparation method of the colored high-strength polyethylene fibers. The colored high-strength polyethylene fibers disclosed by the invention not only reserve the excellent comprehensive performance of the traditional high-strength polyethylene fibers, but also can improve the weather resistance, surface hardness, heatresistance, creep resistance and oxidation resistance, and are simple and easy in dyeing, high in color fastness and uniform in dyeing.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a colored high-strength polyethylene fiber and a preparation method thereof. Background technique [0002] High-strength polyethylene fiber is a synthetic fiber material with high strength and modulus produced by ultra-high molecular weight polyethylene with a molecular weight of more than 1 million. It is the most cost-effective fiber material among the three existing fiber materials. The raw material UHMWPE for the preparation of this fiber has performance characteristics such as high relative molecular mass, high degree of orientation, highly entangled molecular chains, and high crystallinity, which endows high-strength polyethylene fibers with excellent comprehensive properties. Its density is low, High modulus and strength, UV resistance, abrasion resistance, and impact resistance play a very important role in modern warfare and defense equipment, aerospace and avi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/06D01F1/06D01F1/10D01F11/06D01D5/34
CPCD01D5/34D01F1/06D01F1/10D01F8/06D01F11/06
Inventor 王超
Owner 江苏智芯新能源装备制造有限公司
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