The structure and curing reaction mechanism of the bifunctional polyester resin are analyzed. The effects of acid value and hydroxyl value of bifunctional polyester resin, types and contents of matting agents and fillers on the matting properties of the powder coatings are studied. The results show that the matting property of the coating increases with the increase of the acid value of the bifunctional polyester resin, while the hydroxyl value of the bifunctional polyester resin has little effect on the matting property of the coating. The matting effect is more excellent if using matting curing agent, high light barium sulfate and precipitated barium sulfate.
LI Xiao-Qiang
. Study on Matting Properties of Bifunctional Polyester Powder Coatings[J]. Paint & Coatings Industry, 2019
, 49(3)
: 48
-52
.
DOI: 10.12020/j.issn.0253-4312.2019.3.48
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