Additive capable of regulating coating gloss and preparation method thereof

Abstract

The invention discloses an additive capable of regulating coating gloss and a preparation method thereof. The additive is composed of, by weight, 10-15 parts of propylene glycol ether solvent, 30-40 parts of diluent, 20-30 parts of resin carrier, 0.1-1 part of matte powder dispersant, 0.5-1 part of fumed silica, 10-15 parts of matte powder, 0.05-0.2 part of wetting agent and 0.01-0.2 part of mattehand feeling auxiliaries. The additive not only has a paint film with matte effects, but also can adjust different gloss levels by changing the content of additive formula; liquid coating added withthe additive has a transparency which is 20% higher than transparency of existing liquid coating; the case of misty surface dyeing is greatly reduced, the surface of the obtained paint film is smooth,and the hand feels fine and smooth.

Description

technical field [0001] The invention belongs to the field of paint preparation, and in particular relates to an additive capable of regulating paint gloss. Background technique [0002] Paint is a kind of decorative material, which can form a layer of paint film on the surface of the object after coating, which has a certain protective and decorative effect, including liquid paint and solid powder paint. [0003] Gloss is the reflection characteristic of the surface of an object. When the incident light hits the surface of the paint film, total reflection and scattering will occur. The surface of the paint film is flat. The larger the reflection part, the higher the gloss. If it is rough, the scattering part will increase, and the gloss will be low, that is, the effect of matting will be produced. By microscopically adjusting the unevenness of the surface of the paint film, it is possible to control the surface of the paint film to produce different gloss effects. [0004]...

AI Technical Summary

Problems solved by technology

[0004] In liquid coating compositions, gloss reduction is often achieved by the use of high volume pigments and / or filler particles to reduce reflections, but it will cause the fluidity of the paint film, so that when the liquid coating is sprayed, due to poor fluidity, At the same time, under the action of gravity, no matter when spraying on a flat or inclined surface, there will inevitably be sagging, orange peel, non-smooth hand feeling and uneven gloss. At the same time, due to the high volume of pigment and / or filler particles , in order to improve the fluidity of the paint film, it is necessary to add other substances with strong fluidity, which will inevitably increase the thickness of the paint film, and the increase of the paint film thickness, and at the same time the paint film contains a high volume of pigments and / or filler particles, which will cause the paint The film appears floating color and blooming, which is one of the dynamic separation phenomena of pigments. The pigments have separation obstacles in the horizontal direction, so that the color of the coating film is uneven and blooming occurs. Floating color means that the color changes in the vertical direction. Separation of one or more pigments during the film and drying process, one pigment floats to the surface and the other stays in place or sinks to the bottom

[0005] In the process of paint production and construction, the phenomenon of floating color and blooming is often encountered. When the paint has floating color and blooming, the color will have a color difference from the standard plate, making it very difficult to adjust the color, which is a waste of pigment and inaccurate. Cans are poor and application film color deviates after paint dries and is difficult to apply uniformly

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