Environment-friendly exterior wall coating

Abstract

The invention provides an environment-friendly exterior wall coating, which is prepared from the following raw materials in parts by weight: 18 to 28 parts of gelatin, 6 to 8 parts of lithopone, 12 to16 parts of hydroxyethyl cellulose, 10 to 14 parts of white lead, 7 to 9 parts of polyvinyl alcohol, 6 to 8 parts of acrylic resin, 10 to 16 parts of lignin, 22 to 28 parts of light calcium carbonate, 6 to 12 parts of sodium pentachlorophenate, 16 to 22 parts of wollastonite powder, 3 to 7 parts of antifoaming agent, 9 to 15 parts of asbestos fiber, 12 to 16 parts of cement, 8 to 12 parts of dispersant and 20 to 40 parts of water. The environment-friendly exterior wall coating is high in bonding strength, high in dynamic cracking-resistant performance, low in expansion rate and good in acid resistance and alkali resistance, can be used for resisting an ultraviolet ray, and is not discolored when being irradiated for a long time, and a paint film is hard and flat and has self-washing performance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an environmentally friendly exterior wall coating. Background technique [0002] Coating is one of the indispensable materials in the field of construction. Its main function is to protect the surface of buildings so that they are waterproof, stain-resistant, heat-insulating or anti-ultraviolet. Existing architectural coatings have poor acid and alkali resistance and waterproof performance, and the coatings often crack and peel off due to poor adhesion after construction, which cannot protect the exterior walls of buildings, and is prone to produce poisonous fog , causing great damage to the environment, and also causing great harm to construction personnel, and it is difficult to cure. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an environmentally friendly exterior wall coating with high bonding s...

AI Technical Summary

Problems solved by technology

Existing architectural coatings have poor acid and alkali resistance and waterproof performance, and the coatings often crack and peel off due to poor adhesion after construction, which cannot protect the exterior walls of buildings, and is prone to produce poisonous fog , causing great damage to the environment, and also causing great harm to construction personnel, and it is difficult to cure