Preparation method of low-temperature-resistant imitation copper door coating

Abstract

The invention discloses a preparation method of a low-temperature-resistant imitation copper door coating, which comprises the following steps: adding epoxy resin and carboxyl-terminated saturated polyester resin into a stirring cylinder, and uniformly stirring at low speed; adding ethyl acetate and petroleum asphalt under the stirring condition of 350-450rpm; adding leveling agent and glycerol under the condition of stirring at the speed of 600-800rpm, and uniformly dispersing; under the stirring condition of 350-450rpm, adding the iron oxide red and the copper fine powder into a cylinder forcolor matching; adding the rest raw materials, and uniformly stirring under the stirring condition of 1,200 to 1,500 rpm; and grinding, sieving with a 250-mesh sieve, and packaging. According to thelow-temperature-resistant imitation copper door coating, by adding the low-temperature-resistant glycerol and the organic bentonite with the interlayer structure, the low-temperature resistance of thecoating can be remarkably improved, and cracking is prevented; meanwhile, the iron oxide red, the liquid petroleum asphalt and the copper fine powder are mutually combined, so that the color mixing effect is better.

Description

technical field [0001] The invention relates to the technical field of copper imitation paint, in particular to a preparation method of a low temperature resistant copper imitation paint. Background technique [0002] The imitation copper door is made of electrolytic plates, and the surface is sprayed with paint with a color similar to that of the copper door to make it look similar to the copper door, so it is called an imitation copper door. In order to achieve a beautiful and durable effect, most of the domestic anti-theft doors are made of imitation copper doors, and most of them adopt pickling and phosphating process before painting. Plates, forgings and cold plates are welded together, which causes certain difficulties for spraying, so a primer for degreasing and rust removal is required in the early stage. First: Primer. At present, most enterprises use electrostatic powder spraying as primer. Second: finish paint, which is now basically in several colors of red cop...

AI Technical Summary

Problems solved by technology

This process directly causes the differences in the products of various enterprises, so this process is the most important, but at present, this process uses black-plat