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Aramid fiber surface modification method

A surface modification, aramid fiber technology, applied in the direction of fiber type, textile and papermaking, fiber processing, etc., can solve the problem of unsuitable aramid fiber surface modification treatment, and achieve the effect of soft dispersion of fibers, saving production costs, and simple preparation

Active Publication Date: 2012-11-28
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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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 , R2 , R 3 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

Belonging to the field of chemical fiber production, the invention relates to an aramid fiber surface modification method. The method provided in the invention consists of: preparation of a surface modification treating agent, coating of the surface treatment agent, and drying treatment. For the surface modification treating agent in the surface modification treating agent preparation, a fluorocarbon silane coupling agent with the following molecular structure is adopted and dissolved in an organic solvent for direct use, or a fluorocarbon active agent is adopted and emulsified as well as dispersed in water for direct use. After being treated by the surface modification method provided in the invention, the aramid fiber is soft and dispersive, its characters and quality are stable. Also the fiber surface polarity is enhanced, and the interfacial properties of an aramid fiber and epoxy resin matrix are improved. The interlaminar shear strength of a modified aramid fiber / epoxy composite material can reach 50-58MPa.

Description

Technical field [0001] The present invention involves a surface modification method. Specifically, the invention involves a surface modification method of aramid, which is a chemical fiber production field. Background technique [0002] The aramid is called "polybinyl pyramamine", and English is ARAMID FIBER (DuPont's product name KEVLAR). It is a new type of high -tech synthetic fiber, which has ultra -high strength, high models and resistance to resistanceHigh temperature, acid resistance, alkali and resistance, light weight and other excellent performance. Its strength is 5 to 6 times the steel wire, 2 to 3 times the modulus is steel wire or glass fiber, twice the toughness of the steel wire, and the weight of only 1 / Around 5.It has good insulation and anti -aging performance, and has a long life cycle.The discovery of aramid is considered a very important historical process in the material industry. [0003] Aramite III fiber is similar to the APMOC fiber of Russia, which is ...

Claims

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Application Information

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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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