Material of automobile thermal-insulating and sound-insulating plate and preparation method of material

Abstract

The invention discloses a material of an automobile thermal-insulating and sound-insulating plate. The material is made of the following materials in parts by weight: 55-65 parts of ethylene-propylene-diene-terpolymer rubber, 70-75 parts of epoxy resin, 16-18 parts of azodicarbonamide, 4-7 parts of polystyrene, 8-15 parts of polyethylene foams, 12-14 parts of expanded vermiculite, 7-11 parts of glass fiber, 9-15 parts of nano carbon black, 20-22 parts of nano aluminum oxide, 10-14 parts of aerogel, 7-12 parts of barium sulfate, 8-14 parts of polyester, 6-10 parts of expanded perlite, 14-18 parts of ceramic cotton fiber, 8-10 parts of alumina silicate fiber, 2-6 parts of sodium silicate, 5-10 parts of N-phenyl-N'-cyclohexyl p-phenylenediamine, 11-14 parts of dichlorodifluoromethane and 16-18 parts of fatty alcohol-polyoxyethylene ether sodium sulfate. The material for the automobile thermal-insulating and sound-insulating plate, which is disclosed by the invention, has good thermal-insulating and sound-insulating effects, is good in aging resistance, and is long in service life.

Description

technical field [0001] The invention relates to a material of an automobile heat and sound insulation board and a preparation method thereof. Background technique [0002] Thermal insulation material is a material that can block the transfer of heat flow, also known as thermal insulation material. Traditional thermal insulation materials, such as glass fiber, asbestos, rock wool, silicate, etc., new thermal insulation materials, such as airgel felt, vacuum panels, etc. Heat insulation materials are divided into three categories: porous materials, heat reflective materials and vacuum materials. The former uses the pores contained in the material itself to insulate heat, because the thermal conductivity of air or inert gas in the pores is very low, such as foam materials, fiber materials, etc.; heat reflective materials have a high reflection coefficient and can reflect heat, such as Gold, silver, nickel, aluminum foil or metal-plated polyester, polyimide film, etc. Vacuum ...

AI Technical Summary

Problems solved by technology

[0004] At present, the sound insulation and heat insulation materials used in automobiles are generally effective. Two layers of materials need to be installed at the same time to achieve the sound insulation and heat insulation effect. They cannot resist aging and have a short service life.

Images