Aerosil heat insulation material for building walls

Abstract

The invention discloses an aerosil heat insulation material for building walls. The aerosil heat insulation material mainly comprises, by mass, 40-70 parts of silica sol, 12-25 parts of polyethylene glycol, 5.5-11.5 parts of glass fibers and 0.25-0.75 part of a cross-linking agent. The toughness of the aerosil is modified with the polyethylene glycol, and the mechanical properties of the aerosil are modified with the glass fibers, so the aerosil material has good stability and good heat resistance when used as a heat insulation material, and is an environmentally-friendly material.

Description

technical field

[0001] The invention belongs to the technical field of thermal insulation materials for building walls, and in particular relates to a silica airgel thermal insulation material for building walls. Background technique

[0002] With the development of society, the energy crisis is getting worse day by day, energy conservation and emission reduction has become a very important development strategy in our country. According to statistics, building energy consumption accounts for about 20% of total energy consumption, so the thermal insulation performance of building materials is very important, especially building wall materials. Insulation materials for building walls are mainly divided into inorganic materials and organic materials. Among them, organic materials are easy to release harmful gases during use and have the characteristics of being combustible. Organic materials are more risky when used as wall insulation materials; inorganic materials have Better...