中国塑料 ›› 2015, Vol. 29 ›› Issue (05): 41-46 .DOI: 10.19491/j.issn.1001-9278.2015.05.008

• 材料与性能 • 上一篇    下一篇

松香基环氧树脂/马来海松酸酐固化反应动力学与热稳定性研究

王丹,霍莉,闰明涛,高俊刚   

  1. 河北大学
  • 收稿日期:2014-12-29 修回日期:2015-02-08 出版日期:2015-05-26 发布日期:2015-05-26

Study on Cure Kinetics and Thermal Stability of Rosin-based Epoxy Resin/Maleopimarate

  • Received:2014-12-29 Revised:2015-02-08 Online:2015-05-26 Published:2015-05-26

摘要: 松香与马来酸酐进行Diels-Alder反应合成马来海松酸酐(MPA),与环氧氯丙烷进一步反应生成松香基环氧树脂,以马来海松酸酐(MPA)做固化剂固化松香环氧树脂,利用差示扫描量热仪、动态力学谱仪、热重分析仪等分析手段,对该体系固化产物进行固化动力学和热降解动力学研究。结果表明,质量比为5∶5的环氧树脂/马来海松酸酐体系固化后玻璃化转变温度达53.2 ℃,平均固化反应活化能为52.29 kJ/mol;固化物在10 ℃/min时初始分解温度为211.9 ℃,最大分解温度为347.7 ℃,最终分解温度为639.0 ℃。

关键词: 松香环氧树脂, 马来海松酸酐, 固化动力学, 热稳定性

Abstract: Maleopimarate (MPA) was synthesized from rosin and maleic anhydride by Diels-Alder reaction, which was used reaction with epichlorohydrin to synthesize rosin-based epoxy resin (MPAER). The dynamic mechanical property, cure kinetics, and thermal stability were characterized by DMA, DSC and TG. It showed that the glass transition temperature of cured MPAER was 53.2 ℃ when the mass ratio of MPAER with MPA was 5∶5, and the average curing activation energy (Eca) was 52.29 kJ/mol. When the heating rate was 10 ℃/min, the initial degradation temperature (Tid), was 211.9 ℃, the fast thermal degradation temperature was 347.7 ℃, and the final degradation temperature was 639 ℃。

Key words: rosin-based epoxy resin, maleopimarate, curing kinetics, thermal stability