CN102260427A - Composite additive for paint - Google Patents

Abstract

The invention relates to a composite stabilizer for paints. The composite stabilizer is composed of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 2-hydroxy4-octyloxybenzophenone, methyl benzotriazole, 2,6-dibutyl hydroxy toluene, and 2,2'-methylene di(4-methyl-6-tertiary butyl phenol). The composite stabilizer comprises, by weight: 20% to 40% of 2-(2'-hydroxy-5'-methylphenyl)benzotriazole, 10% to 20% of 2-hydroxy4-octyloxybenzophenone; 5% to 15% of methyl benzotriazole; 20% to 40% of 2,6-dibutyl hydroxy toluene, and 10% to 20% of 2,2'-methylene di(4-methyl-6-tertiary butyl phenol). The processing method of the additive is simple. With the composite additive, production cost can be greatly reduced, and work efficiency can be improved.

Description

A kind of paint composite additive

Technical field;

The present invention relates to a kind of paint, particularly relate to the compound tranquilizer of a kind of paint.

Technical background:

Paint is generally by the high molecular polymer solvent composition, after the paint film forming, because of influenced by extraneous factors such as visible light in the atmosphere, ultraviolet ray, infrared rays, various physics, chemical transformation take place, cause paint film variable color, be full of cracks, efflorescence and cause and come off, this phenomenon mainly is because a series of oxidase complex photodegradation reactions under ultraviolet ray and the oxygen participation cause, therefore by adding the material that can absorb ultraviolet ray and suppress photo-oxidation process, can stop the bad change of paint film, prevent paint film variable color, be full of cracks, efflorescence even come off.

Summary of the invention:

Purpose of the present invention will provide a kind of paint compound tranquilizer exactly, and it can overcome the existing defective of old-fashioned main product.The object of the present invention is achieved like this, the compound tranquilizer of a kind of paint, it be by 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-hydroxyl 4-octyloxy benzophenone, methyl benzotriazazole, 2,6-ditertbutylparacresol, 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol) forms, its content be 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 20-40%; 2-hydroxyl 4-octyloxy benzophenone 10%-20%; Methyl benzotriazazole 5-15%; 2,6 ditertiary butyl p cresol 20-40%; 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol) 10-20% (above all be weight percentage); The present invention is easy to operate, can reduce production costs significantly, improves work efficiency.

Embodiment:

Additive among the present invention selected 5 is mixed.To resin solid composition 1-2%, epoxy coating adds in the solidifying agent, other elder generations and mixed with resin.

The about 0.5-1% of population proportion, stirring and dissolving gets final product.The present invention selects two kinds of benzotriazoles, a kind of benzophenone ultraviolet absorbers for use, mainly be that the ultraviolet ray that will absorb is converted into heat energy, two kinds of shielding phenolic antioxidants, the heat energy oxidizing reaction that stops visible light and UV light absorber to be converted, play the time that prolongs paint film variable color, be full of cracks, efflorescence greatly even come off, improved performance after the paint film forming.

Claims (1)

1. compound tranquilizer of paint, it be by 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole, 2-hydroxyl 4-octyloxy benzophenone, methyl benzotriazazole, 2,6-ditertbutylparacresol, 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol) forms, its content be 2-(2 '-hydroxyl-5 '-aminomethyl phenyl) benzotriazole 20-40%; 2-hydroxyl 4-octyloxy benzophenone 10%-20%; Methyl benzotriazazole 5-15%; 2,6 ditertiary butyl p cresol 20-40%; 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol) 10-20% (above all be weight percentage).