Polyurethane rigid foam material for external thermal insulation system of external wall

Abstract

The invention provides a external thermal-insulated system material of polyurethane rigid foam, which is characterized in that: said system material comprises polyurethane dampproof bottom paint, polyurethane rigid foam material, surface agent, anti-break polymer cement sand pulp containing glass fiber grid cloth and a paint decorated surface. The invention can reach compatibility and balance between each layer of external thermal-insulated material to be an organic integration. The layers can flexibly release distortion stress to effectively reduce the generation of seams on said wall, and flatten the surface of polyurethane rigid foam, without concave-convex surface. And the layers have strong adhesive force, to avoid departure between them.

Description

technical field

[0001] The invention relates to a rigid polyurethane foam plastic used in construction that can be directly sprayed on the wall and the material for the external thermal insulation system of the external wall matched therewith. Background technique

[0002] In recent years, with the rapid development of the urban construction industry, many new products have been continuously developed for external wall insulation materials in buildings.

[0003] For example, the expansion perlite and sepiolite cement mortar thermal insulation slurry external wall thermal insulation system has the disadvantages of high water absorption, large drying shrinkage deformation and temperature and humidity deformation, easy cracking, falling off and poor thermal insulation performance.

[0004] Rubber powder polystyrene particle cement mortar insulation slurry, because of its high thermal conductivity, usually greater than 0.07w / (m.k), is not economically reasonable to meet the requ...

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