Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (19): 1834-1840. Previous Articles     Next Articles

Original Articles

丙烯酸化环状磷腈/环氧丙烯酸酯光固化体系热降解动力学研究

姚亮,丁军,瞿保钧*,施文芳   

  1. (中国科学技术大学高分子科学与工程系 合肥 230026)
  • 投稿日期:2005-01-25 修回日期:2005-06-13 发布日期:2010-12-10
  • 通讯作者: 瞿保钧

Kinetics Study of Thermal Degradation of UV-Cured Cyclophosphazene/Epoxy Acrylate Blends

YAO Liang, DING Jun, QU Bao-Jun*, SHI Wen-Fang   

  1. (Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026)
  • Received:2005-01-25 Revised:2005-06-13 Published:2010-12-10
  • Contact: QU Bao-Jun

Acrylated cyclophosphazene was used as a flame retardant to blend with commercial UV-curable epoxy acrylate EB600. The kinetics of thermal degradation of the UV-cured product was studied by thermogravimetric analysis at different heating rates in comparison with that to use cyclophosphazene powder in place of the acrylated one. The activation energies and correlation coefficients were calculated by Kissinger, Flynn-Wall-Ozawa and Friedman methods. It has been shown that the addition of cyclophosphazene increased the activation energies of blend systems at high temperature, improved the thermal stability and made the thermal degradation more difficult. Moreover, the acrylated cyclophosphazene film has higher activa-tion energy than that containing cyclophosphazene powder.

Key words: cyclophosphazene, epoxy acrylate, thermogravimetric analysis, kinetics of thermal degradation