中南民族大学学报（自然科学版）2024，Vol.43Issue(3)：289-294,6.DOI:10.20056/j.cnki.ZNMDZK.20240301
水性超支化聚氨酯丙烯酸酯乳液的合成与性能
Preparation and properties of waterborne hyperbranched polyurethane acrylate emulsion
摘要
Abstract
A waterborne hyperbranched polyurethane acrylate(WHPUA-n)emulsion was synthesized by polytetrahydrofuran glycol(PTMG-1000),isophorone diisocyanate(IPDI),pentaerythritol triacrylate(PETA)and hydroxyl-terminated hyperbranched polyester(HBP-OH).The chemical structures of WHPUA-n were characterized by FT-IR and 1H NMR.The influence of the molecular weight of HBP-OH on the properties of WHPUA-n emulsion and cured films was studied.The results showed that HBP-OH significantly improved the stability and comprehensive properties of emulsion.With the increase in molecular weight of HBP-OH,the viscosity of emulsion first decreased and then increased.The toughness,wear resistance,water resistance and heat resistance of the emulsion cured films first increased and then decreased.The emulsion prepared by medium molecular weight HBP-OH(H102)showed the best comprehensive performance.The WHPUA-n emulsion demonstrated good stability,uniform particle size,good glossiness,high hardness,high adhesion,excellent water resistance and great potential in the field of waterborne coatings.关键词
聚氨酯丙烯酸酯/超支化聚酯/乳液/合成/性能Key words
polyurethane acrylate/hyperbranched polyester/emulsion/synthesize/properties分类
化学化工引用本文复制引用
韩浩然,刘欣,许泽军,张道洪..水性超支化聚氨酯丙烯酸酯乳液的合成与性能[J].中南民族大学学报（自然科学版）,2024,43(3):289-294,6.基金项目
国家自然科学基金资助项目(51873233) （51873233）
中央高校基本科研业务费专项资金资助项目(CZP20006,CZH23005) （CZP20006,CZH23005）
