Powder paint for freezer shell and preparation method thereof

Abstract

The invention provides a powder paint for a freezer shell. The powder paint is prepared from the following components by weight part: 30-40 of epoxy resin, 60-70 of polyester resin, 4-6 of m-phenylenediamine, 10-15 of superfine light calcium carbonate, 10-12 of polyvinyl alcohol, 1-2 of an HDI trimer, 1-2 of 2, 6-tert-butyl-4-methylphenol, 1-1.5 of chlorinated paraffin, 1-2 of di-octadecyl ester, 0.4-0.6 of cellulose acetate butyrate, 4-6 of lithopone, 3-6 of carbon black, 20-25 of titanium dioxide, 0.5-1.0 of a silane coupling agent, and 1-3 of a modification additive. The paint provided by the invention has the advantages of high film luster, good fullness, high gloss, high hardness, good flexibility, good abrasion resistance and heat resistance, good gloss and color retention, and low curing temperature, short curing time, and is especially suitable for the freezer and refrigerator shells.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a powder coating for a freezer shell and a preparation method thereof. Background technique [0002] With the advancement of modern science and technology and the development of modern industry, the problem of environmental pollution has become increasingly prominent, which poses a great threat to human beings themselves and the environment on which human beings depend. Traditional coatings will produce a large amount of toxic and harmful waste gas and waste water during the manufacturing process or during the construction process, which will pollute the environment, air and water resources, especially solvent-based coatings, which will release Volatile organic compounds (VOC) into the atmosphere, its amount has reached more than 50%, causing serious secondary pollution. This problem has attracted the attention of many industrial countries. [0003] As a kind of green and environment-fr...

Images