Surface layer light plastering gypsum for replacing interior wall paint

Abstract

The invention discloses surface-layer light plastering gypsum for replacing interior wall paint. The surface-layer light plastering gypsum is prepared from the following raw materials in parts by mass: base materials of the light plastering gypsum comprise 500-600 parts of beta gypsum, 300-400 parts of glass beads, 200-300 parts of heavy calcium powder and 50-100 parts of a gypsum retarder; the filler of the light plastering gypsum comprises the following components in parts by weight: 90-95 parts of gypsum and 60-70 parts of semi-hydrated gypsum, the light plastering gypsum comprises the following auxiliary materials in parts by weight: 15-20 parts of an accelerant, 30-40 parts of a water reducing agent, 10-15 parts of diatomite, 5-10 parts of a retarder, 8-15 parts of anti-crack fibers, 10-20 parts of starch ether, 10-20 parts of a defoaming agent and 5-10 parts of rubber powder. Auxiliary agents of the light plastering gypsum comprise 80-90 parts of a dispersing agent, 20-50 parts of a fluorescent whitening agent, 30-40 parts of shell powder, 30-50 parts of calcium carbonate and 10-15 parts of zinc silicate powder, the light plastering gypsum can have the advantages of being resistant to corrosion, high in weather resistance and alkali resistance, capable of adapting to different climatic changes, environmentally friendly and capable of saving energy, dust is not prone to falling off after a wall is coated with the light plastering gypsum for a long time, the color is purer, and the service life of the light plastering gypsum is prolonged. And the coating can be widely applied to indoor and outdoor wall decoration.

Description

technical field [0001] The invention belongs to the field of building interior wall paint, and more particularly relates to a surface layer light plastering plaster for replacing interior wall paint. Background technique [0002] Lightweight plastering plaster, also known as lightweight plastering gypsum, is a new type of high-efficiency and energy-saving building interior wall and roof plastering material. It replaces cement, lime mortar and other plastering materials. It is suitable for various walls. It overcomes the shortcomings of traditional plastering materials, and has the following advantages: strong cohesive force, able to bond with any substrate, and not limited by thickness, good workability, fluidity, water retention, low temperature (O ℃) Construction, environmental protection, no odor, good anti-cracking effect, thermal insulation effect, good sound insulation effect. The indoor dry temperature can be adjusted, the construction is convenient, the construction...

AI Technical Summary

Problems solved by technology

[0004] However, the existing lightweight plastering gypsum tends to cause the underlying gypsum to absorb water and get damp, especially in humid climates such as the south, prone to moisture return and yellowing