Study on Application of Powder Coating Used Modified Polyester Based on Glycidyl Ester of Versatic Acid

WANG Po[1; 2];XIE Jing[1; 2];LI Yong[1; 2];CHENG Run[1; 2];YANG Yu[1; 2];LIU Xian-ni[1]

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Modern Paint & Finishing ›› 2021, Vol. 24 ›› Issue (5) : 8-12.

Study on Application of Powder Coating Used Modified Polyester Based on Glycidyl Ester of Versatic Acid

WANG Po[1,2];XIE Jing[1,2];LI Yong[1,2];CHENG Run[1,2];YANG Yu[1,2];LIU Xian-ni[1]

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Abstract

Modified polyester was obtained through a procedure that glycidyl ester of versatic acid(ElOP)copolymerized with polyacid and polyol,based on which powder coating was prepared.The properties of modified polyester were investigated by FT-IR,XRD,GPC,DSC,meanwhile,the performances of powder coating were tested by horizontal flow and inclined flow,solvent rub,boiling water and UVB-313.It was found that El OP could both contribute to flow and reactivity;with the increasement of El OP,crystallinity kept amorphous,Tg,boiling water resistance and weathering resistance decreased,molecular weight and solvent resistance exhibited an increase first and then a decrease.

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glycidyl ester of versatic acid;modified polyester;powder coating

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WANG Po[1,2];XIE Jing[1,2];LI Yong[1,2];CHENG Run[1,2];YANG Yu[1,2];LIU Xian-ni[1]. Study on Application of Powder Coating Used Modified Polyester Based on Glycidyl Ester of Versatic Acid[J]. Modern Paint & Finishing. 2021, 24(5): 8-12