Ecotypic-gypsum-based dry powder coating

Abstract

The invention discloses an ecotypic-gypsum-based dry powder coating. The coating comprises the following components in percentage by weight: 35 to 70 percent of gypsum powder, 10 to 20 percent of slag powder, 5 to 10 percent of white cement, 2 to 6 percent of exciting agent, 0 to 26 percent of filler, 1 to 10 percent of pigment, 6 to 10 percent of tackifier, 1 to 2 percent of thixotropic agent, 0.1 to 0.5 percent of dispersing agent, 0.05 to 0.5 percent of water-retaining agent, and 0.1 to 0.5 percent of antifoaming agent. The raw materials are easily obtained; the production process and equipment are simple; during construction, the coating can be mixed with cold water, can be used for roller coating and brush coating, has high covering power, can also be scumbled, and can be connected firmly; and powder does not fall off, and the indoor humidity can be adjusted.

Description

technical field [0001] The invention relates to a gypsum-based dry powder coating, in particular to an ecological gypsum-based dry powder coating with gypsum slag powder as the main component. Background technique [0002] With the improvement of people's living standards, the awareness of health and environmental protection has become more and more popular, and the organic volatiles emitted by solvent-based coatings will pollute the environment and cause harm to people's health. [0003] Existing water-based paint uses water as a solvent, greatly reducing pollutants, but it also has defects: high packaging costs and transportation costs. [0004] Dry powder coatings are easy to pack and easy to transport, which greatly reduces the cost. However, the currently widely used coating filler particles and film-forming substances are mainly physically connected to each other, rather than connected by chemical bonding, which has poor durability and is prone to cracking and peeling...

AI Technical Summary

Problems solved by technology

[0003] Existing water-based paints use water as a solvent, greatly reducing pollutants, but there are also disadvantages: high packaging costs and transportation costs

However, the currently widely used coating filler particles and film-forming substances are mainly physically connected to each other, rather than through chemical bonding, which has poor durability, easy cracking, and peeling.

Images