摘要
研究了一种用于碳纤维复合材料真空灌注成型的环氧树脂体系的流变特性，根据对等温粘度曲线的数据拟合分析，建立了粘度模型，并通过对模型参数的数据拟合推广到其他等温条件下使用。与常规玻纤用环氧树脂相比，该树脂具有显著增加的低粘度平台时间。流变模型的预测与实验结果具有良好的一致性。通过所建立的模型预测此种环氧树脂用于碳纤维真空灌注成型的最佳温度区间在50～70℃之间，为碳纤维复合材料结构件真空灌注成型成功奠定了基础。
The theological behavior of epoxy resin system for vacuum infusion molding of carbon fiber was stud- ied. A viscosity model was established through simulating the obtained theological data of the epoxy resin system by means of experiments. Compared with the normal epoxy system for glass fiber, this epoxy system has a significantly increased pot life. The predicted viscosity values of the established model are in good agreement with the experimen- tal ones. According to the prediction of the rheological model of the epoxy resin, the optimal temperature for vacuum infusion molding of carbon fiber was in the range of 50 to 70 degrees. The study is important for the vacuum infusion molding of carbon fiber thick parts.
出处
《玻璃钢／复合材料》
CSCD
北大核心
2013年第6期J0005-J0008,共4页
Fiber Reinforced Plastics/Composites
基金
国家973项目(2010CB735802)
北京市科技计划(Z111110066611003)
关键词
环氧树脂
碳纤维
真空灌注成型
流变特性
工艺窗口
epoxy resin
carbon fiber
vacuum infusion
rheological behavior
processing window
