Building paint using hydrated lime as main film forming matter and preparing method

Abstract

The present invention discloses one kind of building paint with hydrated lime as main filming matter and its preparation process. The building paint has performance capable of meeting all the requirement for building decoration, including no softening after water soaking, homogeneous and soft filming effect, good surface decorating effect, etc.

Description

technical field [0001] The invention relates to an architectural paint, especially an architectural paint with slaked lime (calcium hydroxide) as the main film-forming substance, and a preparation method of the paint. Background technique [0002] The paint made of hydrated lime (calcium hydroxide) has appeared as a rough self-adjusting and self-use non-commercial paint, but this paint cannot meet the commercial function of architectural decoration like latex paint, that is: paint It is difficult to brush evenly, the surface is rough, there are obvious traces of the interface of the roller brush, the covering power is not enough, and it is easy to peel when combined with the base layer. [0003] And the latex paint that uses acrylic emulsion as a film-former also has its fatal weaknesses as the architectural decorative coatings that are widely used now, such as: it will soften and whiten when it is soaked in water, and it is easy to powder; the organic and harmful volatile c...

AI Technical Summary

Problems solved by technology

[0002] The paint made of hydrated lime (calcium hydroxide) has appeared as a rough self-adjusting and self-use non-commercial paint, but this paint cannot meet the commercial function of architectural decoration like latex paint, that is: paint It is difficult to brush evenly, the surface is rough, there are obvious traces of the roller brush interface, the covering power is not enough, and it is easy to peel when combined with the base layer

[0003] And the latex paint that uses acrylic emulsion as a film-former also has its fatal weaknesses as the architectural decorative coatings that are widely used now, such as: it will soften and whiten when it is soaked in water, and it is easy to powder; the organic and harmful volatile content of acrylic emulsion is high. , has great pollution to the environment; after painting, there will be small orange peels pulled up by rollers on the surface, which will affect the hand feel; it will not be durable due to oxidation and hydrolysis; it needs to add preservatives to prevent corrosion, and preservatives will endanger human health

[0004] The application number is 200410028586.9, an invention patent applied by the applicant, which has disclosed a kind of architectural coating and preparation method with slaked lime as the main film-forming substance, but the coating prepared by this method has an insurmountable shortcoming, that is, the During the storage of the above-mentioned paint, polyvinyl alcohol and lime react to produce gel, and the paint will thicken slowly, thus affecting the construction and use