Gypsum-based internal wall plastering material with heat preservation and heat insulation function

Abstract

The invention discloses a gypsum-based internal wall plastering material with heat preservation and heat insulation function. The plastering material has light weight, high bond strength, strong water resistance, significant heat preservation and heat insulation function and good air permeability, can be applied for plastering various internal walls, leveling the internal walls and providing excellent heat preservation and heat insulation function. The plastering material has the following formula by weight percent: 0.30-0.50 percent of building gypsum powder, 0.05-0.15 percent of finely milled high-strength cement clinker, 0.40-0.60 percent of vitrification microsphere, 0.02-0.06 percent of polyphenyl particles, 0.08-0.16 percent of powdery starch adhesive and 0.01-0.02 percent of methylcellulose. The principle of the plastering material is as follows: two heat preservation and heat insulation construction aggregates of the vitrification microsphere and the polyphenyl particles are utilized to provide the heat preservation and heat insulation function; the finely milled high-strength cement clinker is utilized to provide strength and water resistance for the plastering material; and the powdery starch adhesive with high adding amount is utilized to improve the bonding strength of the plastering material.

Description

Technical field: [0001] The invention belongs to a functional interior wall plastering and leveling material, in particular to a gypsum-based interior wall plastering material with thermal insulation function, which is light in weight, high in bonding strength, strong in water resistance, The thermal insulation function is remarkable, and the air permeability is good. This new type of plastering material can be applied to the plastering of the interior walls of various buildings. In addition to producing a leveling effect, it can also provide a good thermal insulation function for the wall, which can cancel the exterior insulation of the building's exterior walls, or Reduce the requirements for external wall insulation. Background technique: [0002] After the building wall is built, the inner wall generally needs to be plastered and leveled, and the leveling layer is about 20mm thick, so the amount of plastering is large. Gypsum-based plastering materials for interior wal...

AI Technical Summary

Problems solved by technology

However, under the premise of social development of energy saving and emission reduction, there are three problems in ordinary gypsum-based interior wall plastering materials, which affect its application

One is that the thermal insulation function is very small; the other is limited by the cost factor, the addition of latex powder is very small, the bonding strength is low, and the bonding with the wall is poor, which often leads to hollowing between the plaster layer and the wall; three. The formed plaster layer has poor water resistance

These problems affect the application of ordinary gypsum-based interior wall plasters