Development of High Performance Low Viscosity Two-component Curing Coatings for Plastic Substrates

LIU Liang[1; 2];LU Jun-jie[1; 2];LIANG Zhi-jian[1; 2];ZHANG En-ci[1; 2];GU Yu-xin[1; 2];YANG Yu[1; 2];LIANG Jiang-hua[2]

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Modern Paint & Finishing ›› 2023, Vol. 26 ›› Issue (4) : 1-4.

Development of High Performance Low Viscosity Two-component Curing Coatings for Plastic Substrates

LIU Liang[1,2];LU Jun-jie[1,2];LIANG Zhi-jian[1,2];ZHANG En-ci[1,2];GU Yu-xin[1,2];YANG Yu[1,2];LIANG Jiang-hua[2]

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Abstract

The low viscosity two-component curing coating(2K PU)was prepared by using a low T_(g) line high molecular saturated polyester LE07 series and a high T_(g) highly branched medium molecular saturated polyester HE09 series,with PGDA/DBE/PMA/ethanol as solvent.The results showed that the above 2K PU curing coating had excellent comprehensive properties in surface dryness,adhesion and boiling resistance etc.Compared with the conventional high molecular weight high T_(g) saturated polyester's 2K PU system,the above low viscosity coatings can significantly reduce VOC emissions.

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T_(g);line;branched;polyester;low viscosity;adhesion;2K PU

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LIU Liang[1,2];LU Jun-jie[1,2];LIANG Zhi-jian[1,2];ZHANG En-ci[1,2];GU Yu-xin[1,2];YANG Yu[1,2];LIANG Jiang-hua[2]. Development of High Performance Low Viscosity Two-component Curing Coatings for Plastic Substrates[J]. Modern Paint & Finishing. 2023, 26(4): 1-4