High-strength water-based automobile coating, preparation method thereof and preparation equipment thereof

Abstract

The invention discloses a high-strength water-based automobile coating which is prepared from the following components in parts by weight: 30 to 50 parts of a curable epoxy material, 50 to 70 parts ofdeionized water, 0.01-5 parts of graphene oxide, 22-35 parts of biuret, 14-28 parts of isophorone diisocyanate, 9-25 parts of tetrahydrofuran, 5-12 parts of ethylene glycol, 5-12 parts of a thickening agent, 5-15 parts of graphite powder, 5-16 parts of a wetting agent, 9-28 parts of a dispersing agent, 10-22 parts of a defoaming agent, 6-9 parts of a plasticizer and 15-25 parts of an emulsion. The invention further discloses a preparation method and preparation equipment of the high-strength water-based automobile coating, the equipment comprises a mixer main body, and a motor is fixedly mounted in the middle of an outer surface of an upper end of the mixer main body. According to the invention, the components in the coating can be fully mixed and then stably combined together, so that aformed coating film is relatively high in strength, stronger in connectivity and not easy to split, and the use performance of the coating film is improved.

Description

technical field [0001] The invention relates to the technical field of a high-strength water-based automotive coating, in particular to a high-strength water-based automotive coating, a preparation method and equipment. Background technique [0002] The automobile industry is one of the four pillar industries in my country, and the demand for automobiles is increasing, and the amount of coatings supporting it is also increasing day by day. At present, most automotive primers use electrophoretic paint, of which more than 90% are cathodic electrophoretic paints, mainly made by modifying acrylic acid and polyurethane with epoxy resin. The cathodic electrophoretic paint has complex preparation process, troublesome construction, high cost, and contains a large amount of organic solvents, which has low safety and great environmental pollution. Compared with water-based epoxy resin coatings: using water as a solvent, the VOC content is greatly reduced; the raw materials are easy t...

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Problems solved by technology

[0005] However, during the preparation process of the automotive coating in the above patent, the components in the coating are not mixed uniformly, and it is difficult to combine them stably. The strength of the formed coating film is not high enough, and it is prone to splitting, reducing its performance.

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