【摘要】 对 992乙烯基酯树脂体系的流变特性进行研究。根据树脂的反应动力学特性 ,建立树脂的化学流变模型 ,模型分析结果与实验结果吻合较好。所建立的粘度模型 ,可有效模拟和预报树脂体系在不同工艺条件下的粘度行为 ,并准确预报 RTM工艺的低粘度工艺窗口 ,为优化 RTM工艺参数和保证产品质量提供必要的工艺基础数据和模型更多还原

【Abstract】 The rheological behaviors of vinyl ester resin systems (Ashland 992) for resin transfer molding (RTM) were studied with DSC and viscosity experiments The rheological model of the resin was established based on Dual Arrhenius equation and chemical reactive equation The model was used to simulate rheological behaviors of the resin The estimated viscosity values of the models were in good agreement with that of the experiments The low viscosity processing window of the resin for RTM process was determined based on the developed models The resin system have a 30min/0 4Pa·s processing window at 30℃ The developed viscosity model is important for processing simulation and quality control for RTM processing of high performance composites更多还原