Heat insulation composite material with high temperature mechanical property and preparation method thereof

Abstract

The invention discloses a heat insulation composite material with high temperature mechanical property and a preparation method thereof. The material comprises 33-39% of barium-phenolic resins, 5-7% of ethanol and 56-60% of high strength glass fiber cloth by mass. The method is characterized by firstly clipping the high strength glass fiber cloth, then mixing the barium-phenolic resins and the ethanol to form barium-phenolic resin adhesive solution, proportionally immersing the barium-phenolic resin adhesive solution into the high strength glass fiber cloth to form S-glass / phenolic aldehyde composite material prepreg and finally drying the aired S-glass / phenolic aldehyde composite material prepreg with an electrothermal blowing dry box. The invention solves the problem that the materials with heat insulation requirement in the aerospace products have poor mechanical properties at high temperature and simultaneously has the characteristics of low material price, simple production and low possibility of debris falling after the product is produced.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a thermal insulation composite material with high-temperature mechanical properties and a preparation method thereof. Background technique [0002] At present, in the aerospace field, the heat insulation requirements for materials are gradually increasing, and at the same time, the mechanical properties in high-temperature environments need to be improved. The materials used for heat insulation in aerospace products mainly include asbestos, felt, composite materials and nanomaterials. Although these materials can play a role in heat insulation, they have poor mechanical properties in high-temperature environments such as asbestos, felt, and nanomaterials; materials such as aramid composite materials, carbon fiber composite materials, and nanomaterials are expensive; carbon fiber composite materials, nanomaterials, and other materials are produced It is dif...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thermal insulation composite material with high-temperature mechanical properties and its preparation method, so as to solve the problem of poor mechanical properties, high price, difficult production and manufacturing of aerospace thermal insulation materials in high-temperature environments, and easy generation of debris after being made into products. The problem