新型耐腐蚀含氟环氧乙烯基酯树脂的合成与性能

摘要

A novel fluorine-containing epoxy vinyl ester resin（F-EVER） was synthesized using fluorine-containing epoxy（F-EP）,acrylic acid（AA） and methacrylic acid（MAA） as monomer.The resin was modified by maleic acid（MA）,FT-IR spectra,TGA and mechanical properties.The corrosive resistance of the cured resin was also investigated.Results showed that the F-EVER had best performance when resin was synthesized under DMF as catalyst,molar ratio of carboxyl groups to epoxy groups was 0.9,molar ratio of F-EP to MA was more than 0.1,and the mass fraction of polymerization inhibitor was 0.03%.Furthermore,both thermal and corrosive resistance were promoted due to introduction of the element fluorine.%以含氟环氧树脂（F-EP）、丙烯酸（AA）和甲基丙烯酸（MAA）为单体,用顺丁烯二酸（MA）进行改性,合成了含氟环氧乙烯基酯树脂（F-EVER）。用傅里叶红外光谱、热重分析、力学性能分析等手段对产物进行表征,研究了树脂的耐腐蚀性能。结果表明：当以N,N-二甲基甲酰胺（DMF）为催化剂,羧基与环氧基摩尔比为0.9,MA与F-EP摩尔比大于0.1,阻聚剂质量分数为0.03%时,合成的含氟环氧乙烯基酯树脂性能较好;同时,氟元素的引入较好地增强了环氧乙烯基酯树脂的耐热性和耐化学腐蚀性能。