化工学报 ›› 2012, Vol. 63 ›› Issue (7): 2085-2091.DOI: 10.3969/j.issn.0438-1157.2012.07.013

• 催化、动力学与反应器 • 上一篇    下一篇

三炔丙基异氰尿酸酯的合成、表征及其非等温固化动力学

陈苏锋,史铁钧,杨兆攀,谭德新   

  1. 合肥工业大学化工学院
  • 收稿日期:2011-09-13 修回日期:2012-03-19 出版日期:2012-07-05 发布日期:2012-07-05
  • 通讯作者: 史铁钧

Synthesis, characterization and non-isothermal curing kinetics of tri-propargyl isocyanurate

CHEN Sufeng, SHI Tiejun, YANG Zhaopan, TAN Dexin   

  • Received:2011-09-13 Revised:2012-03-19 Online:2012-07-05 Published:2012-07-05

摘要: 以3-溴丙炔、异氰尿酸为原料,利用相转移催化剂合成了三炔丙基异氰尿酸酯(TPIC),并用FT-IR、1H NMR对其结构进行了表征。用TGA表征了热固化后的TPIC的热性能。结果表明:热固化后的树脂在375℃开始分解,800℃的残炭率达75%。根据DSC曲线,TPIC的熔点为167℃左右,并用Kissinger、Flynn-Wall-Ozawa和Friedman-Reich-Levi法分别计算了热固化反应活化能,它们分别为46.81、48.70和40.92 kJ·mol-1,热固化反应级数都接近1,并探讨了固化反应过程与机理。通过对比分析表明,这3种方法均适用于TPIC体系。

关键词:  , 溴丙炔;异氰尿酸;相转移催化反应;固化动力学

Abstract: Tri-propargyl isocyanurate (TPIC)was synthesized using isocyanurate and propargyl bromide by phase transfer catalyst reaction.The chemical structure of TPIC was characterized by FT-IR, 1H NMR. The analysis of TGA curve referred to the cured TPIC displayed that the preliminary thermal decomposition temperature of cured TPIC was about 375℃ and the char yield was 75% at 800℃.According to DSC curves used to investigate the thermal curing behavior of TPIC, the curing kinetic parameters were calculated by several thermo analysis methods, respectively, such as Kissinger, Flynn-Wall-Ozawa and Friedman-Reich-Levi, and the apparent activation energy was 46.81, 48.70 and 40.92 kJ·mol-1 respectively. The order of curing reaction obtained by the three methods all approached 1 and the mechanism was further discussed.Based on comparative analysis of the above three methods, they all can properly simulate the thermal curing process of TPIC.

Key words: propargyl, isocyanurate, phase transfer catalyst reaction, curing kinetics

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