Water exterior wall paint and its preparing process

Abstract

The invention relates to a water fluorocarbon paint for external-wall painting, comprising solvent (water), water fluorocarbon latex, filler, composite film-forming auxiliary agent, disperser, moistening agent, leveling agent, thickening agent and germicidal agent. In the paint, solvent (water) covers 5 to 15 percent, water fluorocarbon latex covers 40 to 70 percent, composite film-forming auxiliary agent covers 5 to 14 percent, rutile titanium pigment covers 10 to 25 percent, talc powder covers 5 to 10 percent, disperser covers 0.1 to 0.5 percent, moistening agent covers 0.001 to 0.003 percent, leveling agent covers 0.004 to 0.01 percent, thickening agent covers 1 to 1.8 percent, and antifoaming agent covers 0.01 to 0.05 percent. The invention provides an efficient novel water fluorocarbon paint for external-wall painting by changing fillers and increasing the dose of composite film-forming auxiliary agent. The preparation process is simple, the paint is free of dehiscence, spurging and whitening; the painted wall-surface is smooth, and the light and color are well reserved; the paint has sound flexibility, weathering resistance, corrosion resistance, heat / cold resistance, acid / alkali resistance and better film-forming performance; the paint is environment-friendly, low-cost and construction friendly; and the prospect of development is very bright.

Description

technical field [0001] The invention relates to the field of architectural exterior wall coatings, in particular to a novel water-based exterior wall fluorocarbon coating, and further relates to a preparation method of the novel water-based exterior wall fluorocarbon coating. technical background [0002] Water-based exterior wall fluorocarbon coating is a new type of coating with fluorocarbon resin emulsion as the main film-forming substance. It has the advantages of extremely high weather resistance, corrosion resistance, heat and cold resistance, acid and alkali resistance, etc. The great concern and favor of the industry has also become a hot topic of research by coating scientists. In recent years, considerable breakthroughs have been made in the use of Chinese building exterior walls. However, in the use of water-based fluorocarbon exterior wall coatings, there are still some deficiencies such as cracking, foaming, and whitening that have not been resolved for a long ...

AI Technical Summary

Problems solved by technology

However, in the use of water-based fluorocarbon exterior wall coatings, there are still some deficiencies such as cracking, blistering, and whitening that have not been resolved for a long time.

[0003] The present invention develops water-based exterior wall fluorocarbon coatings by changing fillers and increasing the amount of composite film-forming aids. This method has not been reported in the Chinese patent network and the retrieval documents of existing journals.