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A kind of dyeing method and product of ultra-high modulus polyethylene fiber

A technology of polyethylene fiber and dyeing method, which is applied in the direction of dyeing method, textiles and papermaking, etc., can solve the problems of complex process, poor heat resistance of UHMWPE, high equipment cost, etc. Infiltrating effect

Active Publication Date: 2022-05-10
ZHEJIANG QIANXILONG SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method of surface modification damages the mechanical properties of UHMWPE, and the process is complicated and the equipment cost is high
Although the process is convenient through the conventional dyeing method, the dyeing effect is not good due to the poor heat resistance of UHMWPE and the non-polar groups on the surface.
Dope dyeing or masterbatch preparation for melt spinning dyeing, the dyeing effect is good, but due to the low fastness of the combination between small molecule dyes and fiber molecules, it is easy to migrate to the fiber surface when flowing through the spinning port

Method used

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  • A kind of dyeing method and product of ultra-high modulus polyethylene fiber
  • A kind of dyeing method and product of ultra-high modulus polyethylene fiber
  • A kind of dyeing method and product of ultra-high modulus polyethylene fiber

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Experimental program
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Effect test

Embodiment 1

[0040] A kind of dyeing method of ultrahigh modulus polyethylene fiber adopts the method of chemical bonding, and concrete steps are as follows:

[0041] (1) 100 grams of water-based hydroxyacrylate resin emulsion (hydroxyl content 3.3wt%, solid content 42wt%) containing cetyl acrylate 5 grams, 0.1 gram of reactive brilliant blue KN-R type reactive dye, 25 grams of Bayer 2655 Add the isocyanate curing agent into the reaction bottle, stir at 700 rpm for 10 minutes at high speed to form a dyed glue, and add it to the glue tank of the gluing machine;

[0042] (2) After dipping and extruding the ultra-high modulus polyethylene fiber or its products through a gluing machine, heat it to 80 degrees Celsius to cure for 20 minutes, and the coloring of the ultra-high modulus polyethylene fiber or its products is completed.

[0043] The fiber color is blue after dyeing. The tensile breaking strength of 200 ultra-high modulus polyethylene fibers without dyeing is 44.5N, the tensile break...

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Abstract

The invention discloses a dyeing method of ultra-high modulus polyethylene fiber and its products. The dyeing method comprises the steps of: (1) adding 100 parts by weight of water-based hydroxyacrylate resin emulsion containing saturated long-chain alkyl acrylate, 0.1 -1 weight part of dyes containing hydroxyl and / or amino groups and 5-30 weight parts of isocyanate curing agent are mixed and stirred to form glue, and added to the glue tank of glue machine; (2) super high modulus polyethylene fiber or its products are processed After dipping and extruding the glue by the gluing machine, heat and cure at no more than 80°C to complete the coloring of ultra-high modulus polyethylene fiber or its products. The invention introduces long alkyl chains and dyes through chemical bonds to realize high-efficiency dyeing of UHMWPE, and the preparation process is easy to realize without affecting the performance of UHMWPE fibers.

Description

technical field [0001] The invention relates to the field of ultrahigh modulus polyethylene fiber dyeing, in particular to a method for dyeing ultrahigh modulus polyethylene fiber and a product thereof. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE, or ultra-high modulus polyethylene) is polyethylene with a relative molecular weight greater than 1.5 million. Ultra-high modulus polyethylene has excellent functions such as wear resistance, excellent mechanical properties, corrosion resistance, no water absorption, and excellent impact resistance. However, due to the easy crystal orientation, symmetrical structure and inactive groups of the UHMWPE molecular structure, the surface of UHMWPE is extremely inert, the surface energy is extremely low, and the chemical activity is low, resulting in UHMWPE cannot be realized according to the traditional dyeing and finishing process. Effective staining. [0003] There are generally the following mainst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/79D06P1/38D06P1/52D06P5/22
CPCD06P3/798D06P1/38D06P1/5285D06P5/22
Inventor 裴克梅陈宏
Owner ZHEJIANG QIANXILONG SPECIAL FIBER
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