Organic and inorganic complex finishing varnish

Abstract

The invention provides an organic and inorganic complex finishing varnish. An inorganic photocatalysis material is added into a complex organic liquid of silica sol and an elastic acrylic emulsion so as to form an organic and inorganic complex finishing varnish main-body material. The silica sol is added into the emulsion-formed film. Through compounding of the silica sol and the self-crosslinking emulsion, an organic and inorganic complex paint film is formed. The organic and inorganic complex paint film has hardness and density of silica sol and will not generate static charge. No pollutants will adhere to the paint film. Meanwhile, the elastic emulsion endows the paint film with flexibility, and the whole paint film is soft. Thus, the finishing varnish with good dispersity, high surface hardness and excellent anti-pollution performance is obtained.

Description

technical field [0001] The invention relates to an organic-inorganic composite finish varnish, which is suitable for the field of decoration and protection of inner and outer walls of buildings. Background technique [0002] In exterior wall architectural coatings, the proportion of water-based coatings is originally greater. The construction technology and coating formula of water-based coatings are also becoming more and more mature. Today's water-based paint can be divided into three parts: primer, middle coat and top coat. The top coat is also called the finish varnish, which is covered on the middle coating to achieve the effect of dustproof and anti-pollution. [0003] In order to achieve the effect of dustproof and anti-pollution, the finish varnish needs to use special water-based resin emulsion. The water-based emulsion used for exterior walls is mainly divided into pure acrylic emulsion, styrene-acrylic emulsion and silicone-acrylic emulsion. The special water-b...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems existing in the above-mentioned existing water-based finish varnishes, the present invention adopts a kind of superior-performance finish varnish ingredients, selects the latest exterior wall anti-contamination pure acrylic emulsion in the water-based resin emulsion, and adds a certain amount of silica sol to carry out the process. Compounding to solve the problem of water-based emulsion paint film softening under high temperature; by adding stain-resistant additives to reduce the adhesion of pollutants, and finally adding nano-scale photocatalyst materials, under the action of light, it will produce a strong catalytic degradation function, so as to obtain anti-staining properties. Organic and inorganic composite finish varnish with excellent pollution performance