Aqueous composite coating for plastic

Abstract

The invention discloses aqueous composite coating for plastic. The aqueous composite coating is prepared from the following raw materials in parts by weight: 20 to 40 parts of aqueous chlorinated polyolefin resin, 20 to 40 parts of aqueous acrylic resin, 15 to 30 parts of aqueous polyurethane dispersoid, 2 to 5 parts of silane coupling agent, 20 to 40 parts of nano calcium carbonate, 5 to 10 parts of ultrafine talcum powder, 10 to 20 parts of nano silicon dioxide, 5 to 15 parts of aluminum silicate, 1 to 6 parts of barium sulfate, 1 to 3 parts of titanium dioxide, 1 to 4 parts of zinc phosphate, 1 to 4 parts of adhering force accelerant, 0.5 to 2.5 parts of dimethylethanolamine, 1 to 2 parts of flatting agent, 1 to 2 parts of antibacterial agent, 1 to 2 parts of de-foaming agent, 1 to 2 parts of mildew preventive and 1 to 2 parts of wetting agent. The aqueous composite coating has great hardness and strong adhering force.

Description

technical field [0001] The invention relates to the technical field of composite coatings, in particular to a water-based composite coating for plastics. Background technique [0002] With the rapid development of modern industry, plastics are widely used in all aspects of light industrial products such as automobiles, motorcycles, household appliances, plumbing equipment, small decorations, cosmetic packaging, and knobs. In order to decorate, beautify and protect the plastic surface, it is often necessary to apply a layer of decorative paint on the surface, but due to the high density of the plastic surface, the general paint cannot be well pasted on the plastic surface, so when the coating film is dry, paint The layer adhesion is poor, and the whole sheet will be torn off with a slight tear. How to prepare a coating with super adhesion and high hardness for plastics has become a technical problem to be solved at present. Contents of the invention [0003] Based on the t...

AI Technical Summary

Problems solved by technology

In order to decorate, beautify and protect the plastic surface, it is often necessary to apply a layer of decorative paint on the surface, but due to the high density of the plastic surface, the general paint cannot be well pasted on the plastic surface, so when the coating film is dry, paint The adhesion of the layer is poor, and the whole sheet will be torn off with a light tear. How to prepare a coating with super adhesion and high hardness for plastics has become a technical problem that needs to be solved at present.