研究了A40/DDM/DMTDA复合体系固化双酚F型环氧树脂体系的化学流变特性,建立了该体系在恒温和动态升温情况下的双阿伦尼乌斯黏度模型.以100℃为参考温度,研究了该体系的时温等效效应,通过转换因子α_T的偏移预测了其它温度点的黏度-时间曲线.并应用时温等效原理,修正了所建立的恒温模型,克服了原模型在黏度值较大时与实验值的偏差.修正后的双阿伦尼乌斯模型的黏度预测值在较大的黏度范围内与实验结果保持良好的一致性,可有效地预测VARTM工艺过程的黏度变化,为复合材料成型工艺模拟分析及工艺参数的确定奠定了基础.
The chemorheological behavior of A40/DDM/DMTDA curing bisphenol - F epoxy resin for vacuum assisted resin transfer molding(VARTM) was studied by means of isothermal and dynamical viscosity experiments. A dual-Arrhenius viscosity model was established and used to simulate the rheological behavior of the epoxy resin system. The time - temperature equivalence of the system was also analysed with the reference temperature 100℃, and the shift factor aTwas calculated by the dual- Arrhenius equation which was then used to predict the viscosity data at other temperatures. It was also used to modify the established viscosity model in order to deal with certain differences between the experiments and calculations for the resin with high viscosity. The viscosity values estimated from the modified model under isothermal and dynamic condition are in good agreement with the experimental ones. The dual-Arrhenius model can be used to predict the chemorheology of different processing parameters of VARTM process, which can be useful for optimization of composite manufacturing processes.
参考文献
| [1] | 李柏松,王继辉,邓京兰.真空辅助RTM成型技术的研究[J].玻璃钢/复合材料,2001(1);17-23.Li Baisong,Wang Jihui,Deng Jinglan.Study on vacuum assisted resin transfer molding[J].Fiber Reinforced Plastics/ Composites,2001(1):17-23. |
| [2] | 赵渠森,赵攀峰.真空辅助成型技术Ⅱ[J].高科技纤维与应用,2002,27(4):21-39.Zhao Qusen,Zhao Panfeng.Vacuum assisted resin infusion Ⅱ[J].High-Tech Fiber & Application,2002,27(4); 21-39. |
| [3] | 刘相,洪晓斌,谢凯.低温固化双酚F型环氧树脂体系的化学流变模型[J].复合材料学报,2009,26(2):85-89.Liu Xiang,Hong Xiaobin,Xie Kai.Engineering viscosity model of low temperature curing bisphenol-F epoxy resin system for VARTM processes[J].Acta Materiae Compositae Sinica,2009,26(2):85-89. |
| [4] | 孙曼灵.环氧树脂应用原理与技术[M].北京:机械工业出版社,2002:122.Sun Manling.Principles and applications of epoxy resin[M].Beijing:China Machine Press,2002:122. |
| [5] | 刁岩.低粘度双酚F环氧树脂固化体系的研究[D].长沙:国防科学技术大学,2006.Diao Yan.Research on low viscosity bisphenol-F epoxy curing system[D].Changsha:National University of Defense Technology,2006. |
| [6] | 谢瑞广,丘哲明,王斌,等.中温固化树脂基体的研究[J].玻璃钢/复合材料,2004(3):27-29.Xie Ruiguang,Qiu Zheming,Wang Bin,et al.Study on resin matrix of advanced composite[J].Fiber Reinforced Plastics/ Composites,2004(3):27-29. |
| [7] | Roller M B.Rheology of curing thermosets:An overview[J].Polymer Engineering and Science,1975,15(6):406-416. |
| [8] | Halley P J,Mackay M E.Chemorheology of thermosets:An overview[J].Polymer Engineering and Science,1996,36(5):593-609. |
| [9] | Hou T H,Bai J M.Chemoviscosity modeling for thermosetting resin systems Ⅲ,NASA/CR-181718[R].Hampton:NASA,1988. |
| [10] | Bai J M,Hou T H,Tiwari S N.Studies on chemoviscosity modeling for thermosetting resins,NASA/CR-180978[R].Hampton:NASA,1987. |
| [11] | Maazouz A,Texier C,Than M,et al.Chemo-rheological study of a dicyanate ester for the simulation of the resintransfer molding process[J].Composites Science and Technology,1998,58(5):627-632. |
| [12] | 石凤,段跃新,梁志勇,等.RTM专用双马来酰胺树脂体系化学流变特性[J].复合材料学报,2006,23(1):56-62.Shi Feng,Duan Yuexin,Liang Zhiyong,et al.Rheological behavior of a bismaleimide resin system for RTM process[J].Acta Materiae Compositae Sinica,2006,23(1):56-62. |
| [13] | 王芳,张国利.VARTM用EP体系流变特性及固化工艺的研究[J].工程塑料应用,2006,34(8):31-34.Wang Fang,Zhang Guoli.Rheological behaviors and curing process of epoxy resin system for VARTM[J].Engineering Plastics Application,2006,34(8):31-34. |
| [14] | 吴其晔,巫静安.高分子材料流变学[M].北京:高等教育出版社,2002:51-54.Wu Qiye,Wu Jing'an.Polymer rheology[M].Beijing:Higher Education Press,2002:51-54. |
| [15] | Brower David I.An introduction to polymer physics[M].Cambridge:Cambridge University Press,2002:208-209. |
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