碳氮杂环乙烯基酯树脂的合成与表征

Synthesis and Characterization of C/N Heterocyclic Vinyl Ester Resin

用含异氰脲酸酯基的环氧树脂与甲基丙烯酸反应合成了含有碳氮杂环的乙烯基酯树脂,研究了环氧基/羧基摩尔比、催化剂用量以及温度对反应的影响,确定了最佳反应条件,并利用红外光谱对其结构进行了表征。该树脂采用苯乙烯为交联剂,固化后延伸率达到7.2%,拉伸强度高达74.7MPa,与通用的乙烯基酯树脂相比延伸率得到提高。合成的碳氮杂环乙烯基酯树脂具有较好的力学性能和应用前景。

C/N heterocyclic vinyl ester resin (CNVER) was synthesized by the reaction of ISEP and methacrylic acid. The technological conditions of synthesizing CNVER were optimized. Influence of the molar ratio of epoxy group and carboxy group, the amount of catalyzer and the reaction temperature on the reaction were discussed.The structure of CNVER was confirmed by IR spectrum. Styrene was chosen as a cross-linking agent of CNVER. The properties of CNVER was studied. Its elongation is 7.2% and tensile strength 74.7 MPa, indicating that the mechanical properties of CNVER are good.