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Method for preparing modified aramid fiber/graphene reinforcement

A technology for modifying aramid fibers and aramid fibers, applied in the field of materials, can solve the problems of less surface active functional groups and poor interface bonding ability, and achieve the effects of improving performance, improving roughness, and improving interface bonding ability.

Inactive Publication Date: 2018-04-06
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the benzene ring in the aramid fiber has a steric hindrance effect and a high degree of crystallinity along the axial orientation, which makes it difficult for the amide group to react with other atoms or groups, making its surface active functional groups relatively few, and compatible with the polymer matrix. Poor interface binding ability

Method used

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  • Method for preparing modified aramid fiber/graphene reinforcement
  • Method for preparing modified aramid fiber/graphene reinforcement
  • Method for preparing modified aramid fiber/graphene reinforcement

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Embodiment Construction

[0019] Embodiments of the present invention: prepare the method for modified aramid fiber / graphene reinforcement, comprise the steps:

[0020] 1) Modified aramid fiber by ultraviolet radiation: place the aramid fiber in a beaker, add acetone to soak, in order to prevent the volatilization of acetone, immediately seal the mouth of the beaker with plastic wrap; put the sealed beaker in an ultrasonic cleaner After cleaning for 4 hours in the middle, remove the residual organic impurities on the surface of the aramid fiber produced, put it in a drying oven to dry, and then place the dried aramid fiber at a distance of 15cm from the ultraviolet lamp and modify it with ultraviolet light for 10 minutes. Then cut the aramid fibers after irradiation modification into short fibers of 5-10 mm to obtain ultraviolet radiation modified aramid fibers;

[0021] 2) KH550 grafted modified aramid fiber: configure KH550 ethanol solution with a mass fraction of 6%, and ultrasonically oscillate the...

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Abstract

The invention discloses a method for preparing modified aramid fiber / graphene reinforcement. In the method, ultraviolet radiation modified aramid fibers are adopted to be grafted with graphene oxide,graphene is immobilized on the surfaces of the aramid fibers prepared in this way, and the modified aramid fiber / graphene reinforcement is obtained. In this way, the fiber surface roughness is effectively improved, the interface bonding capacity is improved, and by means of the reinforcement, the performance of natural rubber can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a method for preparing a modified aramid fiber / graphene reinforcement. Background technique [0002] Fibers are widely used as reinforcing materials in polymer materials. Aramid fiber has high tensile strength, high tensile modulus; good fatigue resistance, chemical corrosion resistance and dimensional stability, high heat resistance, low expansion, low thermal conductivity, non-combustible, insoluble and other excellent properties and excellent dielectric properties. However, the benzene ring in the aramid fiber has a steric hindrance effect and a high degree of crystallinity along the axial orientation, which makes it difficult for the amide group to react with other atoms or groups, making its surface active functional groups relatively few, and compatible with the polymer matrix. Poor interface binding ability. Therefore, surface activation treatment must be carried out ...

Claims

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Application Information

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IPC IPC(8): D06M10/00D06M11/01D06M11/74C08J5/06D06M101/36C08L7/00
CPCD06M10/001C08J5/06C08J2305/04C08J2377/10D06M11/01D06M11/74D06M2101/36
Inventor 熊玉竹张清坡戴骏江猛王倩
Owner GUIZHOU UNIV
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