时间-温度-转变(TTT)图是分析和设计固化过程的有用工具,具有重要的研究价值.传统的TTT图中等固化曲线族的绘制是一个繁琐的过程,耗费大量的成本和时间.温度-时间-固化度三者之间的关系是由固化动力学方程控制的,因此从固化动力学方程入手,采用数值模拟的方法研究等固化曲线族是一种省时省力的新方法.针对两种树脂的固化动力学模型,数值模拟了树脂的固化度,并对计算方案进行了验证.在此基础上,分别做出树脂固化动力学模型的等固化曲线图,探讨了温度-时间-固化度之间的关系,结果表明:在等固化条件下温度和时间的对数之间存在线性关系.在此基础上对温度-时间-固化度曲线进行拟合,得到了较为简单的关系式,简化了原先复杂的固化动力学方程,能够方便地用于工程实际,避免了繁琐的求解.
参考文献
| [1] | Perrin FX;Nguyen TMH;Vernet JL .Chemico-diffusion kinetics and TTT cure diagrams of DGEBA-DGEBF/amine resins cured with phenol catalysts[J].European Polymer Journal,2007(12):5107-5120. |
| [2] | Teil H;Page SA;Michaud V;Manson JAE .TTT-cure diagram of an anhydride-cured epoxy system including gelation, vitrification, curing kinetics model, and monitoring of the glass transition temperature[J].Journal of Applied Polymer Science,2004(4):1774-1787. |
| [3] | NUNEZ L;FRAGA F;CASTRO A et al.TTT cure diagram for an epoxy system diglycidyl ether of bisphenol A/1,2 diamine cyclohexane/calcium carbonate filler[J].Polymer,2001,42(08):3581-3587. |
| [4] | Louis Boogh;Bo Pettersson;Jan-Anders E. Manson .Dendritic hyperbranched polymers as tougheners for epoxy resins[J].Polymer: The International Journal for the Science and Technology of Polymers,1999(9):2249-2261. |
| [5] | Nunez L.;Nunez MR.;Villanueva M.;Fraga F. .Effects of diffusion on the kinetic study and TTT cure diagram for an epoxy/diamine system[J].Journal of Applied Polymer Science,1998(10):1931-1938. |
| [6] | RAMIS X;SALLA J .Time-temperature transformation (TTT)cure diagram of an unsaturated polyester resin[J].Journal of Polymer Science Part B:Polymer Physics,1997,35(02):371-388. |
| [7] | Nunez L.;Fraga F.;Nunez MR.;Taboada J. .KINETIC STUDY AND TIME-TEMPERATURE-TRANSFORMATION CURE DIAGRAM FOR AN EPOXY-DIAMINE SYSTEM[J].Journal of Applied Polymer Science,1997(7):1377-1388. |
| [8] | Barral L.;Lopez AJ.;Lopez J.;Nogueira P.;Ramirez C.;Cano J. .TTT ISOTHERMAL CURE DIAGRAM OF A DYGLICIDYL ETHER OF BISPHENOL A/1,3-BISAMINOMETHYLCYCLOHEXANE (DGEBA/1,3-BAC) EPOXY RESIN SYSTEM[J].Journal of Applied Polymer Science,1996(9):1553-1559. |
| [9] | 张明,安学锋,唐邦铭,益小苏.高性能双组份环氧树脂固化动力学研究和TTT图绘制[J].复合材料学报,2006(01):17-25. |
| [10] | 程群峰,方征平,益小苏,廖建伟,唐邦铭,许亚洪.双马来酰亚胺树脂体系的固化动力学和TTT图[J].材料工程,2007(z1):188-192. |
| [11] | Cai, HY;Li, P;Sui, G;Yu, YH;Li, G;Yang, XP;Ryu, S .Curing kinetics study of epoxy resin/flexible amine toughness systems by dynamic and isothermal DSC[J].Thermochimica Acta,2008(1/2):101-105. |
| [12] | Zvetkov VL .Mechanistic modeling of the epoxy-amine reaction - Model derivations[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2005(1):71-84. |
| [13] | Boey FYC.;Yue CY.;Zhao Q.;Song XL. .Modeling the curing kinetics for a modified bismaleimide resin[J].Journal of Polymer Science, Part A. Polymer Chemistry,2000(5):907-913. |
| [14] | T. Behzad;M. Sain .Finite element modeling of polymer curing in natural fiber reinforced composites[J].Composites science and technology,2007(7/8):1666-1673. |
| [15] | A. Cheung;Y. Yu;K. Pochiraju .Three-dimensional finite element simulation of curing of polymer composites[J].Finite elements in analysis & design,2004(8):895-912. |
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