RTM用环氧3266树脂体系化学流变特性的研究

Study on Rheological Behavior of 3266 Epoxy for Resin Transfer Molding

本研究在基本的黏度实验和DSC热分析实验的基础上,采用双阿累尼乌斯方程研究了RTM用环氧3266树脂体系的化学流变特性,建立了相应的化学流变模型,模型与实验结果具有良好的一致性。模型揭示了该树脂体系在不同工艺条件下的黏度变化规律,定量预报了该体系的低黏度工艺窗口平台,为合理制定RTM工艺参数保证产品质量和实现工艺参数的全局性优化提供了必要的科学依据。

The rheological behavior of epoxy resin for resin transfer molding (RTM) was studied with DSC analysis and viscosity experiments. A rheological model based on the dual-Arrhenius equation was established and used to simulate the rheological behavior of the resin. The model prediction determined from the dual-Arrhenius equation was in good agreement with experimental data. The processing window of the resin system can be well determined based on the developed model. The rheological model is important for processing simulation and quality control of RTM processing for high performance composites.