Waterproof coating and preparation method thereof

Abstract

The invention relates to waterproof coating. The formula of the waterproof coating comprises the following components in parts by weight: 10-30 parts of powder, 25-50 parts of cement, 1-5 parts of latex powder and 0.1-1 part of a polypropylene antimitotic agent, wherein the powder is prepared by steps of mixing and stirring anhydrous sodium sulfate and water soluble silicone oil, and then filtering, drying and crushing; and the mass ratio of the anhydrous sodium sulfate to the water soluble silicone oil is 1:1. The waterproof coating effectively solves the problems of cracking, water seepage, easy falling and single property of the traditional wall surface covering layer. By the waterproof coating, water seepage of the wall is avoided under dry or moist and water-seeping condition, and the wall can be effectively protected from being eroded by rainwater, does not crack after being exposed to the sun, wind and rain for a long time and is ventilated under the dry condition. The waterproof coating has excellent adhesive performance and facilitates construction.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a waterproof coating and a preparation method thereof. Background technique [0002] There are two main types of waterproof coatings on the market: one is polyurethane waterproof coatings, which are generally made of polyurethane and coal tar as raw materials. The tar gas volatilized by it is highly toxic and not easy to remove. It has been banned from use in 2009; the polyurethane waterproof coatings currently on sale use asphalt instead of coal tar as a raw material. When using this coating, it is generally diluted with organic solvents containing toluene, xylene, etc., so it is also toxic; another The polymer cement-based waterproof coating is composed of a variety of water-based polymer emulsions and high-quality cement mixed with various additives. The flexibility of the polymer (resin) and the rigidity of the cement are integrated, making it resistant to water. ...

AI Technical Summary

Problems solved by technology

[0003] With the large-scale construction of residential buildings in the last century, most of the residential buildings have now entered the stage of house wall repair, and more and more wall surface coverings have problems such as cracking, water seepage, easy falling off, and single nature, which have seriously affected People's daily life; but the current waterproof coatings are not easy to cover the surface of the wall, and the spraying of waterproof coatings must be carried out in a dry environment. The walls that have been sprayed with waterproof materials are prone to water seepage when they are flooded. Causes secondary cracking of the wall, poor bonding performance, and difficult construction