Powder paint for aluminum section and preparation method thereof

Abstract

The invention relates to powder paint, provides powder paint for the aluminum section and solves the problem that powder paint in the prior art is poor in adhesive force and prone to powder shedding and orange peel. The powder paint comprises, by weight, 66-70 parts of end carboxy polyester resin, 10-15 parts of titanium dioxide, 5-10 parts of ultrafine sericite, 12-18 parts of precipitated barium sulfate, 10-18 parts of alcohol, 4-5 parts of triglycidyl isocyanurate, 10-15 parts of silane coupling agent and 2-8 parts of expanded perlite.

Description

technical field [0001] The invention relates to a powder coating, in particular to a powder coating for aluminum profiles and a preparation method thereof. Background technique [0002] There are generally four treatment methods for the surface treatment of aluminum alloy profiles: anodic oxidation, electrophoretic coating, fluorocarbon spraying and powder coating. Each method has its own advantages and occupies a considerable market share. 1. In the production process of anodic oxidation and electrophoretic coating, the consumption of water and electricity is quite large. Especially in the oxidation process, the output current of the rectifier can reach between 8000 and 11000A, and the voltage is between 15 and 17.5V. In addition to the heat consumption of the machine itself, it is necessary to continuously cool down with circulating water, and the power consumption per ton It is often around 1000 degrees, and at the same time, auxiliary facilities will increase some power...

AI Technical Summary

Problems solved by technology

[0003] Therefore, in view of the above content, the present invention provides a powder coating for aluminum profiles, which solves the problems of weak powder coating adhesion, easy powder removal and orange peel in the prior art.