Low-temperature quick-drying dual-component automotive trim paint

Abstract

The invention relates to low-temperature quick-drying dual-component automotive trim paint, which is used for solving the problems of long baking time, high baking temperature and low hardness in the conventional automobile plastic trim paint. The low-temperature quick-drying dual-component automotive trim paint consists of a component A and a component B, wherein a mass ratio of the component A to the component B is 4:1; the component A consists of the following substances in part by mass: 60 to 80 parts of hydroxy acrylic resin mixture, 5 to 25 parts of solvent A, 5 to 10 parts of filler, 0.1 to 0.5 part of defoamer, 0.1 to 0.15 part of flatting agent, 0.4 to 0.8 part of drier, 0.5 to 1.5 parts of light stabilizer and 0.5 to 1 part of light absorber; and the component B consists of the following substances in part by mass: 50 to 60 parts of curing agent, 4 to 8 parts of curing accelerator and 35 to 55 parts of solvent B. According to an automotive interior trim part sprayed by the automotive trim paint, the baking time can be reduced by nearly 50 percent, the baking temperature is reduced by about 20 DEG C, and the hardness of pencils is improved to 2H; and the low-temperature quick-drying dual-component automotive trim paint has the characteristics of improving production efficiency and quality of products along with energy conservation.

Description

technical field [0001] The present invention relates to a kind of paint, especially the interior paint used for spraying treatment of automobile matching plastic parts. Background technique [0002] At present, the interior plastic parts supporting the automotive industry mainly include ABS, PP, PC + ABS and other materials, and a considerable part of the products or parts need to be painted. The baking conditions of the two-component interior paint sprayed on the existing interior products are relatively harsh: the baking temperature is 80-85 ℃, and the baking time is 30-35 minutes, otherwise the paint film cannot be completely dried, and the next process cannot be carried out. operation, and its performance cannot be guaranteed. In addition, the pencil hardness of the existing two-component interior paint can only reach HB after film formation, which needs to be improved. The use of one-component interior paint can reduce the baking temperature, shorten the baking time, ...

AI Technical Summary

Problems solved by technology

The baking conditions of the two-component interior paint sprayed on the existing interior products are relatively harsh: the baking temperature is 80-85°C, and the baking time needs to be 30-35 minutes, otherwise the paint film cannot be completely dried, and the next process cannot be carried out. jobs, the performance of which is not guaranteed

In addition, the pencil hardness of the existing two-component interior paint can only reach HB after film formation, which needs to be improved

The use of one-component interior paint can reduce the baking temperature, shorten the baking time, and achieve the purpose of low-temperature and quick-drying. However, there is no cross-linking reaction when the one-component interior paint is formed into a film. Side-by-side structure, without generating an interpenetrating network structure, the performance of the product such as abrasion resistance, hardness, water resistance, aging, etc. is far inferior to the performance of the two-component interior paint film

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