Study on Synthesis and Properties of Polyester Resin for Economical Powder Coatings Based on TGIC

LI Xiao-qiang[1; 2];ZENG Ding[1; 2];CHEN Li[1; 2];JIANG Tao[1; 2];WANG Hai-hua[1; 2];YANG Rui-long[1; 2]

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Modern Paint & Finishing ›› 2023, Vol. 26 ›› Issue (6) : 4-8.

Study on Synthesis and Properties of Polyester Resin for Economical Powder Coatings Based on TGIC

LI Xiao-qiang[1,2];ZENG Ding[1,2];CHEN Li[1,2];JIANG Tao[1,2];WANG Hai-hua[1,2];YANG Rui-long[1,2]

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Abstract

The effects of acid value,acidolysis agent,functional monomer 2,2,4-trimethyl-1,3-pentanediol and curing accelerator on the properties of polyester resin and coatings were studied.The polyester resin for 94/6 cured powder coatings based on TGIC was synthesized,and the curing reaction of powder coating was studied.The results showed that the reaction activation energy of the polyester resin synthesized was equivalent to that of the conventional 93/7 cured polyester resin,and the leveling,mechanical properties,salt spray resistance,boiling resistance and weather resistance of the cured coating were equivalent.

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polyester resin;powder coatings;TGIC

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LI Xiao-qiang[1,2];ZENG Ding[1,2];CHEN Li[1,2];JIANG Tao[1,2];WANG Hai-hua[1,2];YANG Rui-long[1,2]. Study on Synthesis and Properties of Polyester Resin for Economical Powder Coatings Based on TGIC[J]. Modern Paint & Finishing. 2023, 26(6): 4-8