A porous energy-saving thermal insulation material

Abstract

The invention discloses a porous energy saving and insulation material. The porous energy saving and insulation material comprises the following components: polyvinyl alcohol, polyurethane oligomers, ammonium acrylate, surfactants, mixed powder, organic fiber, lauryl dimethyl amine oxide, Portland cement, diatomite, sodium bentonite and foaming agents. The drying density of the porous energy saving and insulation material is 250kg / m<3>-300kg / m<3>, the compressive strength is 0.5MPa-1.0MPa, the heat conductivity coefficient is 0.05W / m.K-0.08W / m.K, and the water absorption rate is 4%-8%. The porous energy saving and insulation material does not deform or crack, can be used for replacing organic combustible insulation materials such as polyphenyl foam, can be applied to exterior wall external insulation construction of building energy-saving projects, also can be applied to occasions of roof insulation projects and floor heating projects or can be used for producing compound insulation boards.

Description

technical field [0001] The invention relates to the field of materials, in particular, the invention relates to a porous energy-saving thermal insulation material. Background technique [0002] With the deepening of global energy and resource shortages and environmental pollution, saving energy and resources has become the only way for global economic development. The Chinese government has also publicly stated many times on various official occasions that energy conservation, emission reduction and sustainable development should be regarded as the basic national policy of China's economic development. According to reports, the energy consumption of housing construction accounts for about 25-40% of the total energy consumption in my country. Therefore, doing a good job in energy saving and emission reduction of housing construction is of great significance to implement the basic national policy of energy saving, emission reduction and sustainable economic development propos...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN1887772A proposes a foam concrete with a dry density of 300kg / m3 or more, prepared from sulphoaluminate cement, with high density and high cost. Moreover, there are durability problems, and the application effect and scope are severely limited; Chinese patent CN101973779A A new type of foam concrete preparation process is proposed. The density grade is 700-1200kg / m3. The density is too high and the thermal insulation performance is poor. It can only be used in filling engineering occasions and cannot replace polystyrene foam materials.