Mica piece with high surface tearing strength and forming method thereof

Abstract

The invention relates to the technical field of mica product processing, in particular to a mica piece with high surface tearing strength and a forming method of the mica piece. The mica piece with high surface tearing strength comprises a main mica piece body, and the main mica piece body is prepared from organic silicon resin and mica slurry. The mica slurry is prepared from the following raw materials in parts by weight: 100 parts of a mica powder composition, 2-8 parts of a reinforcing filler and 80-120 parts of an organic solvent, wherein the reinforcing filler is mainly composed of modified Kevlar fibers; the modified Kevlar fibers are vertically distributed in the main mica piece body; the modified Kevlar fiber is composed of a Kevlar fiber and a modified coating which coats the outer wall of the Kevlar fiber; and the specification of the Kevlar fiber ranges from 100 D to 300 D, and the length of the Kevlar fiber ranges from 0.1 mm to 1.0 mm. In the tearing process of release paper on a double-sided adhesive tape, the surface of the mica product is not prone to being damaged, and the quality of the mica product is good.

Description

technical field

[0001] The present application relates to the technical field of mica product processing, in particular to a mica piece with high surface tear resistance and a molding method thereof. Background technique

[0002] At present, the new energy automobile industry is developing rapidly, and the research and development of the battery pack, which is one of the cores of the new energy automobile industry, is particularly critical. The safety and stability of battery packs for new energy vehicles is one of the most concerned issues for consumers.

[0003] In order to ensure the safety performance of the battery pack, manufacturers of new energy vehicles will use high-insulation mica products as the insulation protection material for the battery pack shell. Mica products have high insulation and high temperature resistance. Therefore, mica products can be used for batteries. Groups provide better security protection. In the actual process of attaching mica products...