Anti-abnormal-sound mute coating for automotive trim interiors preparation and application of coating

Abstract

The invention discloses an anti-abnormal-sound mute coating for automotive interiors. The anti-abnormal-sound mute coating comprises 100 parts of a component A, 25-35 parts of a component B and 10-20 parts of a component C; the component A is prepared from the following components in parts by weight: 20-40 parts of polycarbonate resin A, 5-10 parts of polycarbonate resin B, 3-5 parts of toner, 1-3 parts of a dispersant; 0.5-1 part of a drier, 7-10 parts of an anti-abnormal-sound mute auxiliary agent, 1-2 parts of a leveling agent, 1-2 parts of a light stabilizer, 4-10 parts of SiO2 matting powder, and 30 to 50 parts of solvent; the component B is an HDI curing agent and a solvent; and the component C is a diluent. According to the anti-abnormal-sound mute coating for the automotive interiors, disclosed by the invention, the two polyester resins are matched with the anti-abnormal-sound mute auxiliary agent, and the types and the weight parts of other auxiliary agents are adjusted, so that the coating can simultaneously reach the test standard of KIA MS652-14 and pass an anti-abnormal-sound mute test of KIA automobiles.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings, and in particular relates to a double-layer / single-layer matte solvent-based anti-abnormal sound and mute coating which can be sprayed on PP and PC / ABS substrates in plastic parts of automobile interior decoration. Background technique [0002] As the car is used for a long time, many cars will have different degrees of abnormal noise, especially between the plastics, the car will have different degrees of friction during driving, resulting in some uncomfortable creaking sounds. At the same time, there will be a slight squeaking sound when your fingernails slide across the plastic parts. There is a need for an anti-squeak silent coating. The use of real leather or artificial leather to wrap on auto parts will bring high cost to the car, and it is difficult to wrap at the edge of plastic parts. In order to solve this problem, there is a need for an anti-squeak silent paint that meet...

AI Technical Summary

Problems solved by technology

[0003]Currently, the elastic paints for home appliances on the market, although they have a certain degree of anti-squeaking and quieting effects, cannot pass the above standard chemical resistance and weather resistance tests

There are many automotive interior decoration paints on the market. They have very good chemical resistance and weather resistance, but they cannot achieve the anti-squeak and mute effect at the same time. The soft-touch elastic coatings for automotive interiors developed by our company have certain effects. Excellent anti-squeaking and silent effect, but the antibacterial test is poor, failing to pass the MS652-14 standard

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