Surface modification method of quartz fiber

Abstract

The present invention relates to a quartz fibre surface modification method. Said method includes the following steps: soaking quartz fibre in graft body solution, the described graft body is ethyl alcohol solution of phenol formaldehyde resin; irradiating both them by using gamma ray, its irradiation dose is 170-300KGy, taking out quartz fibre so as to obtain the invented modified quartz fibre.

Description

technical field

[0001] The invention relates to a surface modification treatment method of quartz fiber, a reinforcing material for polymer-based composite materials. Background technique

[0002] Due to the high SiO content in the quartz fiber 2 content and has many excellent properties, such as high purity, high temperature resistance, ablation resistance, low thermal conductivity, thermal shock resistance, excellent dielectric properties and good chemical stability, etc., so it is used in modern aviation, aerospace, electronics and weaponry and other fields have been more and more widely used. However, due to its relatively smooth surface, small surface area, and low surface energy, the active surface generally does not exceed 10% of the total surface and is hydrophobic, so it is difficult for quartz fibers to form a firm bond with the matrix through chemical or physical actions. combined. Contents of the invention

[0003] The purpose of the present invention is to ...