Aramid fiber surface modification method

A surface modification and aramid fiber technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of unsuitable aramid fiber surface modification treatment, and achieve the effect of soft dispersion, good modification effect and stable quality of fibers

Active Publication Date: 2014-09-17
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem that the fiber surface modification treatment process in the prior art is not suitable for aramid fiber surface modification treatment, and provides a simple and safe online surface modification treatment method, so that the finally obtained aramid fiber is soft and dispersed, The properties and quality are stable, and the surface polarity of the fiber is improved

Method used

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  • Aramid fiber surface modification method
  • Aramid fiber surface modification method
  • Aramid fiber surface modification method

Examples

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Embodiment 1

[0034] A method for surface modification of aramid fibers, comprising preparation of a surface modification treatment agent, coating of the surface treatment agent, and drying treatment, wherein the preparation of the surface modification treatment agent is:

[0035] The surface modification treatment agent is directly used after being dissolved in an organic solvent with a fluorocarbon silane coupling agent of the following molecular structure formula, or directly used after being emulsified and dispersed in water with a fluorocarbon active agent:

[0036]

[0037] In the formula, n=1, R 1 , R 2 , R 3 for an alkyl group.

Embodiment 2

[0039] A method for surface modification of aramid fibers, comprising preparation of a surface modification treatment agent, coating of the surface treatment agent, and drying treatment, wherein the preparation of the surface modification treatment agent is:

[0040] The surface modification treatment agent is directly used after being dissolved in an organic solvent with a fluorocarbon silane coupling agent of the following molecular structure formula, or directly used after being emulsified and dispersed in water with a fluorocarbon active agent:

[0041]

[0042] In the formula, n=10, R 1 , R 2 , R3 for an alkyl group.

Embodiment 3

[0044] A method for surface modification of aramid fibers, comprising preparation of a surface modification treatment agent, coating of the surface treatment agent, and drying treatment, wherein the preparation of the surface modification treatment agent is:

[0045] The surface modification treatment agent is directly used after being dissolved in an organic solvent with a fluorocarbon silane coupling agent of the following molecular structure formula, or directly used after being emulsified and dispersed in water with a fluorocarbon active agent:

[0046]

[0047] In the formula, n=5, R 1 , R 2 , R 3 for an alkyl group.

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Abstract

The invention relates to a method for surface modification of aramid fiber, which belongs to the field of chemical fiber production. The method of the present invention comprises the preparation of surface modification treatment agent, coating surface treatment agent, drying treatment, the surface modification treatment agent in the preparation of described surface modification treatment agent adopts the fluorocarbon silane coupling agent of following molecular structure formula Dissolve in organic solvents and use directly, or use fluorocarbon active agent to emulsify and disperse it in water and use directly. After the aramid fiber is treated with the surface modification method of the present invention, the fiber is soft and dispersed, the properties and quality are stable, and the surface polarity of the fiber is improved, and the interface performance between the aramid fiber and the epoxy resin matrix is ​​improved, and the modified aramid fiber / Epoxy composite material interlaminar shear strength reaches 50-58MPa.

Description

technical field [0001] The invention relates to a surface modification method, in particular to an aramid fiber surface modification method, which belongs to the field of chemical fiber production. Background technique [0002] The full name of aramid is "poly-p-phenylene terephthalamide", which is Aramid fiber in English (DuPont's trade name is Kevlar). It is a new type of high-tech synthetic fiber with ultra-high strength, high modulus and durability. High temperature, acid and alkali resistance, light weight and other excellent properties, its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, its toughness is 2 times that of steel wire, and its weight is only 1 / of that of steel wire. 5 or so. It has good insulation and anti-aging performance, and has a long life cycle. The discovery of aramid fiber is considered to be a very important historical process in the material industry. [0003] Aramid III fiber is sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/513D06M13/165C08J5/06C08L63/00D06M101/36
Inventor 王凤德刘克杰杨文良曹先军陈超峰兰江彭涛
Owner CHINA BLUESTAR CHENGRAND CO LTD
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