Powder coating with low molecular weight bisphenol S type epoxy resin as main material and preparation method thereof

Abstract

The invention discloses a powder coating with low molecular weight bisphenol S type epoxy resin as a main material and a preparation method thereof. The powder coating comprises the following raw materials by weight part: 40-50 of low molecular weight bisphenol S type epoxy resin, 30-50 of phenolic resin, 70-80 of isotactic polypropylene resin, 10-15 of titanium dioxide, 2-5 of activated carbon powder, 3-5 of bismuth trioxide, 5-7 of mica powder, 2-4 of urotropine and 3.3-3.8 of a film forming agent. The powder coating provided in the invention adopts the low molecular weight bisphenol S type epoxy resin as the main raw material, and the mica powder and the film forming agent are added to enhance the mixing property among the raw materials. Meanwhile, the surface leveling of the powder coating is improved. With high gloss retention, the powder coating has improved decorative property. And the prepared product has a high qualified rate.

Description

technical field [0001] The invention relates to a powder coating, in particular to a powder coating with low molecular weight bisphenol S type epoxy resin as the main ingredient and a preparation method thereof. Background technique [0002] With the continuous and stable growth of my country's economy and the continuous improvement of people's living standards, the powder coating business of metal components is also increasing, especially in industries such as instruments and meters, transportation facilities, and aluminum profiles. Powder coating can provide metals with excellent anti-corrosion However, due to the unsatisfactory anti-pollution performance of the existing coatings used in the above fields, various types of dust, dirt and even oil are often attached to the coatings; the anti-sticking ability is not ideal, and the existing powder coatings form Under the influence of natural conditions such as long-term outdoor exposure and rain, the coating is prone to blisteri...

AI Technical Summary

Problems solved by technology

[0002] With the continuous and stable growth of my country's economy and the continuous improvement of people's living standards, the powder coating business of metal components is also increasing, especially in industries such as instruments and meters, transportation facilities, and aluminum profiles. Powder coating can provide metals with excellent anti-corrosion However, due to the unsatisfactory anti-pollution performance of the existing coatings used in the above fields, various types of dust, dirt and even oil are often attached to the coatings; the anti-sticking ability is not ideal, and the existing powder coatings form Under the influence of natural conditions such as long-term outdoor exposure and rain, the coating is prone to blistering, cracking, peeling, etc. Therefore, the mechanical properties of the coating are not ideal