采用非等温DSC法对三官能团环氧树脂TDE-85与甲基纳迪克酸酐(MeNA)固化体系进行了放热特性分析,升温速率分别为5k/min、10k/min、15k/min、20k/min、25k/min及35k/min.在此基础上重点提出最概然Malek-Flynn-Wall-Ozawa分析法,对其固化反应机理进行固化动力学参数分析,建立了能够正确描述固化反应过程的机理模型.该方法求得固化体系反应表现活化能为E=67.05kJ/mol,表观指前因子为A=5.05×10~9s~-1,反应机理函数为f(a)=2~(2.24)(1-a)~(1.76) 0最后通过实验数据对最概然Malek-Flyn-wall-Ozawa分析法进行验证,证明该方法能够精确的描述固化反应过程和机理特征.
参考文献
| [1] | 郑亚萍,宁荣昌,乔生儒.TDE-85环氧树脂应用性能研究[J].宇航材料工艺,2000(03):30-33. |
| [2] | 胡荣祖;史启桢.热分析动力学[M].北京:科学出版社,2001 |
| [3] | Kissinger D E .Reaction kinetic in differential thermal analysis[J].Analytical Chemistry,1957,29(11):1702-1706. |
| [4] | Freeman ES;Carroll B .The Application of Thermoanalytical Techniques to Reaction Kinetics[J].Physical Chemistry,1958,62:394. |
| [5] | Crane LW.Analysis of curing kinetics in polymer composites[J].Polymer Science,1972(12):120-131. |
| [6] | 苏震宇,邱启艳.改性双马来酰亚胺树脂的固化特性[J].纤维复合材料,2005(03):24-27. |
| [7] | 曾秀妮,段跃新.840S环氧树脂体系固化反应特性[J].复合材料学报,2007(03):100-104. |
| [8] | 于伯龄.实用热分析[M].北京:纺织工业出版社,1990 |
| [9] | Ozawa T .Kinetic analysis of derivative curves in themala analysis[J].Jounal of Thermal Analysis,1970,2:301-324. |
| [10] | Sestak J;Malek J .Diagnostic limits of phenomenological models of heterogeneous reactions and thermal analysis kinetics[J].Solid State Ionics,1993,63:245. |
| [11] | Malek J;Smercka V .Thekinetic analysis of the crystallization processes in glasses[J].Thermochimica Acta,1991,186(01):153-169. |
| [12] | Malek J .The kinetic analysis of non-isothermal data[J].Thermochimica Acta,1992,200:257-269. |
| [13] | Malek J;Criado J M .Analysis and microstructure of solidsand solid state reactions[J].Thermochimica Acta,1994,236(01):187-197. |
| [14] | Malek J .A computer program for kinetic analysis of non-isothermal thermo analytical data[J].Thermochimica Acta,1989,138(1-2):337-346. |
| [15] | Criado J M;Malek J;Ortega A .Applicability of the master plots in kinetic analysis of non-isothermal data[J].Thermochimica Acta,1989,147(1-2):377-385. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%