Bismaleimide resin/silicone rubber ablation-resistant thermal insulation composite material and preparation method thereof

Abstract

The invention discloses a bismaleimide resin/silicone rubber ablation-resistant thermal insulation composite material and a preparation method thereof. The composite material is prepared from the following components in parts by mass: 20-80 parts of methylvinylsilicone rubber, 20-80 parts of methyl vinyl phenyl polysiloxane rubber, 1-5 parts of dicumyl peroxide, 15-40 parts of white carbon black, 5-15 parts of chopped fibers, 5-40 parts of bismaleimide, 1-5 parts of hydroxyl silicone oil and 1-20 parts of zirconium boride. The bismaleimide resin/silicone rubber ablation-resistant thermal insulation composite material has high vulcanization molding quality, and a dense hard carbon layer can be formed on the surface of an ablation layer of the thermal insulation composite material in the ablation process to play a role of preventing the thermal insulation composite material from further ablation, thereby improving the ablation resistance and antioxygenic property of the thermal insulation composite material, enabling the thermal insulation composite material to meet the requirements of operating environments with oxygen enrichment, high temperature, high-speed gas flow and particle erosion, and solving the problem that the thermal insulation material is easy to flaw and be burnt out under the working environments with high temperature, high pressure, oxygen enrichment and particle erosion.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented new type of thermally insulated materials have several technical benefits compared to previous designs such as those made from silicon carbide or graphite. These improvements include improved durability against damage caused by burning fuels at higher temperatures without losing their ability to maintain its properties over time (hot protection), better fireproofness for longer periods while still being effective even when exposed to harsh environments like these conditions). Additionally, they are easier to manufacture due to having fewer steps involved than traditional methods making them more efficient.

Problems solved by technology

This patented technology describes two different ways how integrated solid-pulsive (IS) internal combustions can perform better than traditional gasoline engines when flying over altitude quickly without losing power because they lack certain features like fuel injection systems that require frequent maintenance. However, current methods involve adding ceramics layers on top of the rear igniter before burning out during flight. These techniques may cause cracks if exposed to air containing sulfur dioxide which could damage them more easily. Additionally, existing solutions such as epoxy resin coatings cannot protect against erosion caused by sand grains hitting these surfaces.