A kind of dry powder material used for renovation of old walls, its preparation method and brushing material

Abstract

The invention discloses a dry powder material used for renovation of old walls, a preparation method thereof and a coating material. The dry powder material includes the following components: heavy calcium powder, light calcium powder, talc powder, metakaolin, silica-loaded nano-titanium dioxide, water-retaining thickener, redispersible rubber powder, inorganic gelling material, nano-silica, Retarder, silicone water repellent, osmotic crystallization. Beneficial effects brought by the technical solution of the present invention: 1) The present invention has high-efficiency anti-mildew and antibacterial functions, good durability, and the service life after renovation can be as long as more than 20 years; 2) The brushing material of the present invention is easy to paint Cleaning, you can use a wet towel to scrub; 3) You can move in on the same day after the wall renovation, without ventilation, which solves the problems that the current wall renovation materials are not environmentally friendly, insufficient durability, and long re-occupancy time; 4) Without any The release of VOC and formaldehyde is truly environmentally friendly and pollution-free.

Description

technical field [0001] The invention belongs to the field of building interior wall decoration wall materials, and more specifically relates to a dry powder material used for renovation of old walls, a preparation method thereof and a coating material. Background technique [0002] Generally, after long-term living and use of buildings, the walls will have problems such as mildew, dirt and peeling due to various human factors and self-aging, and the renovation materials used are generally latex paint, which belongs to organic chemical products and has a certain amount of VOC. and formaldehyde and other harmful substances. Because it is an organic material, latex paint is easily oxidized, and its durability is relatively poor. After 3-5 years, there will be aging problems again, and the wall surface needs to be refurbished again. After the refurbishment, due to problems such as odor and formaldehyde, it is still necessary to ventilate for a period of time before re-occupancy...

AI Technical Summary

Problems solved by technology

However, the above-mentioned dry powder mortar materials have not solved the problems that the current wall renovation materials are not environmentally friendly, insufficient in durability, and long in re-occupancy time.

Images