Low dielectric glass fiber and preparation method, glass fiber product, composite material and application

Abstract

The invention provides a low-dielectric glass fiber and its preparation method, glass fiber product, composite material and application. The invention reasonably adjusts the ratio of each oxide in the glass component to obtain high mechanical strength, good dielectric performance and melting Low-dielectric glass with excellent comprehensive performance such as simpler process. Specifically, by reasonably setting the ratio of silicon oxide, aluminum oxide and boron oxide, the glass fiber has a lower dielectric constant and dielectric loss, and the viscosity of the glass is properly adjusted. At the same time, considering the dielectric properties and mechanical strength Under the premise, through reasonable setting of alkaline earth metal oxides, alkali metal oxides, TiO 2 , CeO 2 and SnO 2 The dosage of the glass further improves the melting and clarifying performance of the glass, the temperature of the wire drawing is lower, the stability and yield are higher, the density is lower, and it has excellent workability.

Description

technical field [0001] The invention belongs to the technical field of glass fiber, and in particular relates to a low-dielectric glass fiber and a preparation method, a glass fiber product, a composite material and an application. Background technique [0002] Modern electronic devices often include printed circuit boards reinforced with fiberglass. The two types of glass fibers commonly used to reinforce printed circuit boards are E glass and D glass. Among them, alkali-free and low-dielectric E-glass fiber is the most widely used, and the production and preparation are simple and the price is low. However, at room temperature and a frequency of about 10 GHz, E-glass has a higher dielectric constant of about 6.1 and about 38×10 -4 The high loss factor of the high-performance, high-integrated electronic circuit field has been unable to meet the requirements. Compared with E glass fiber, D glass fiber has excellent dielectric properties, the dielectric constant is less th...

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that glass fibers cannot simultaneously have low dielectric constant and dielectric loss, simple melting, and high mechanical strength, so as to provide a low dielectric Glass fiber and preparation method, glass fiber product, composite material and application

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