Environmental-protection energy-saving thermal-insulated external-wall coating

Abstract

The invention supplies a environment protection energy saving heat preservation exterior wall coating material that contains polyvinyl alcohol 5-10%, acryloid cement 20-40%, cellulose liquor 10-20%, wollastonite in powder 10-30%, see-bubble powder 2-5%, asbestos fiber 1-4%, expanded perlite 5-12%, and water 10-30%. The raw material taking fully mixing to form thick slurry, it could be coated onto the wall. The invention has strong adhesion, high alkali resistance and high water resistance.

Description

Technical field:

[0001] The invention belongs to the thermal insulation coating for buildings, and in particular provides a thermal insulation coating suitable for exterior walls and roofs. Background technique:

[0002] External wall thermal insulation technology is an important building energy-saving technology that reduces building energy consumption by reducing the thermal conductivity of external walls. The external wall external insulation system commonly used in the world today originated in Europe in the 1960s. It uses polystyrene foam or polyurethane rigid foam as the heat insulation layer, and is connected to the wall through adhesives. Because these foam materials are refractory high molecular polymers, they are pollutants in themselves, which often cause pollution at the construction site and are not easy to clean up. Moreover, due to the short service life, extensive use of this external wall insulation system will inevitably produce a large amount of difficult...