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Aramid fiber surface modification processing method

A treatment method and aramid fiber technology, which are applied in the field of polymer material modification and treatment, can solve problems such as unsuitable for industrial production

Inactive Publication Date: 2007-03-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment method for aramid fiber surface modification in order to solve the problem that the current treatment method for aramid fiber surface modification is not suitable for industrial production

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0007] Specific Embodiment 1: The treatment method for surface modification of aramid fibers in this embodiment is: first dry the aramid fibers; then seal the dried aramid fibers in a glass reactor together with a gas medium or a liquid medium, and use 60 Co is the gamma ray irradiation of the irradiation source, under normal temperature and pressure conditions, the irradiation dose is 0.1-3000kGy, and the irradiation treatment is carried out for 12-15 hours.

specific Embodiment approach 2

[0008] Embodiment 2: The gas medium in the method for modifying the surface of aramid fibers in this embodiment is one or a mixture of nitrogen, oxygen, air, and inert gases. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Embodiment 3: The gas medium in the method for modifying the surface of aramid fiber in this embodiment is an inert gas. Others are the same as in the first embodiment.

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Abstract

The invention relates to process method for aramid fiber surface modification that includes the following steps: drying aramid fiber, sealing the dried aramid fiber with gas medium or liquid medium in glass reactor, using gama radial of 60Co irradiating for 12-15 hours, under normal temperature and normal pressure, irradiation dose is 0.1-3000kGy. The invention has the advantages of simple technology, environment protection, high efficiency and suitable for industrial manufacturing.

Description

technical field [0001] The invention relates to a polymer material modification treatment method. Background technique [0002] Aramid fiber is currently one of the organic fibers with the best comprehensive properties produced on a large scale in the world. It has high strength, high modulus, strong toughness and excellent heat resistance, so it is widely used in aerospace and automotive fields Reinforcements for advanced composites. However, the amide group in the aramid fiber is separated by the aromatic ring and forms a π-conjugation effect with the benzene ring. The internal rotation potential energy is quite high, and the molecular chain links are flat and rigid. That is, the main chain structure of the para-aramid fiber has a high degree of Regularity, the macromolecule exists in a very stretched state, thus forming a regular folded layer structure arranged along the axial direction, and the fiber has a unique "core-skin" structure. The surface polarity is not high,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/04D06M15/55D06M15/41D06M101/36
Inventor 黄玉东张艳华刘丽贺金梅刘立洵龙军张春华宋元军
Owner HARBIN INST OF TECH
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