Environment-friendly ceramic film coating for shell of new energy automobile and preparation method of coating

Abstract

The invention discloses an environment-friendly ceramic film coating for a shell of a new energy automobile and a preparation method of the coating. The coating is prepared from the components A, B and C in a mass ratio of (7-8) to 2 to 1, wherein the component A is prepared from the following components in parts by weight: 12-16 parts of a waterborne epoxy resin emulsion, 3-6 parts of pigments, 0.2-1.2 parts of a wetting dispersant, 0.2-0.5 part of a defoaming agent, 0.2-0.5 part of an anti-settling agent, 10-115 parts of a filler and 5-10 parts of deionized water; the component B is preparedfrom the following components in percentage by mass: 50%-60% of a waterborne epoxy curing agent and 40%-50% of deionized water; and the component C is prepared from the following components in percentage by mass: 59.9% of PE-10, 22.7% of CTR-2000, 0.5% of EFKA-S022, 0.1% of cobalt acetylacetonate and 16.8% of HDT-LV2. The coating does not contain VOCs and is decorative.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to an environment-friendly porcelain film paint for new energy automobile casing and a preparation method thereof. Background technique [0002] In the prior art, the coatings used for automobile shells are all solvent-based products. During the production and use of coatings, a large amount of organic solvents used volatilize into the atmosphere, which not only causes serious pollution to the environment but also causes serious waste of energy and resources. Since the car shell is exposed to the external environment for a long time, it is easily pulverized and lost gloss due to the erosion of oxygen in the air and rain, resulting in relatively poor gloss retention and color durability of the paint. It is an urgent technical problem to be solved in this field to develop a kind of VOCs-free coating for automobile shell which has excellent gloss retention and color durability. Conte...

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Problems solved by technology

[0002] In the prior art, the coatings used for automobile shells are all solvent-based products. During the production and use of coatings, a large amount of organic solvents used volatilize into the atmosphere, which not only causes serious pollution to the environment but also causes serious waste of energy and resources. Because the car shell is exposed to the external environment for a long time, it is easily pulverized and lost light due to the erosion of oxygen in the air and rain, resulting in relatively poor gloss retention and color durability of the paint.

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