Putty powder for building inner and outer walls and preparation method of putty powder

Abstract

The invention provides putty powder for building inner and outer walls and a preparation method of the putty powder. The putty powder is prepared from ash-calcium, talcum powder, cement, cellulose, rubber powder, a binding agent and reinforcing powder. The reinforcing powder is formed by mixing composite powder, diatomite and calcium oxide, and the composite powder is obtained by sintering clay, silicon carbide, carbon powder and aluminum hydroxide. The binding agent is prepared from alumina micro powder, modified nanosilicon dioxide, polyethylene glycol and water. The putty powder contains the reinforcing powder and binding agent with special ingredients, when the putty powder is manufactured, the ash-calcium, the binding agent and the reinforcing powder are mixed firstly, hot water is added, the materials are stirred, part of ash-calcium is injected into a microcellular structure or adheres to the surface, then the ash-calcium is fully bonded with the cellulose and the rubber powder added later, therefore, the bonding performance between all the ingredients in the putty powder is enhanced, the anti-cracking performance and hardness of the putty powder are enhanced, and the waterproof performance of the putty powder is also improved to a certain degree.

Description

technical field [0001] The invention relates to putty powder used in the field of building materials, in particular to a putty powder for building interior and exterior walls and a preparation method thereof. Background technique [0002] Putty powder is a kind of building decoration material. It is a kind of base material used for wall repair and leveling, which lays a good foundation for the next step of decoration (painting and wallpaper). Putty is divided into two kinds: putty inside wall and putty on exterior wall. External wall putty can resist wind and sun, so it has good gelation, high strength and low environmental index. The comprehensive index of putty in the inner wall is good, and it is hygienic and environmentally friendly. Therefore, the inner wall is not for external use and the outer wall is not for internal use. The main components of the existing putty powder for exterior walls are heavy calcium (or talcum powder), cement, organic additives, etc., but due...

AI Technical Summary

Problems solved by technology

The main components of the existing putty powder for external walls are heavy calcium (or talcum powder), cement, organic additives, etc., but due to the problems in the formula itself, its water resistance and crack resistance are relatively average. In the prior art, in order to improve the putty For these two properties of powder, it is generally used to increase the amount of adhesives such as cement or rubber powder, but in fact the effect is not ideal.

Moreover, the putty powders currently on the market are generally organic putty powders, containing such as benzene, toluene, acetone, alcohols, etc., even if their content in a few high-end products is only lower than the national standard (or added deodorant), However, they are not conducive to health and are not environmentally friendly; organic putty powder generally needs to pass through an intermediate medium such as an interface agent to combine well with the inorganic building wall matrix, and the formed organic putty layer is also prone to aging and falling off, poor weather resistance, and Deficiencies such as fire resistance, water resistance and low cost performance