RTM专用混合型树脂体系研究──反应特性与工艺特性研究

STUDY OF MIXED RESIN SYSTEMS FOR RESIN TRANSFER MOLDING CHEMICAL REACTIVE CHARACTERIZATION AND PROCESSING PROPERTIES

本文采用乙烯基酯树脂和环氧树脂体系共混改性的方法，研究和开发具有良好工艺性、耐热性和力学性能的低成本 RTM用树脂体系。研究表明，乙烯基酯树脂和环氧树脂体系具有良好的共混特性。 DSC及粘度分析研究表明，混合型树脂体系中的乙烯基酯组份分散了环氧树脂的反应放热，有效降低了 711环氧树脂的反应速率和改善了树脂的工艺特性。使混合型树脂具有较好的 RTM工艺低粘度平台工艺性能。所研究的混合型树脂体系可用于 RTM结构复合材料构件。

The mixture modification of 992 vinyl ester resin (Ashland product) with 711 epoxy resin has been carried out in the study in order to develop the new resin systems with good processing properties for RTM process.The two resin systems can be well mixed. The chemical reactive characterization and viscosity behaviors of the mixed resin were also well illustrated by the DSC analysis and viscosity experiments. The low viscosity processing window for RTM processing of the developed resin systems was presented in the research. It is shown that the developed mixed resin systems can be used to fabricate RTM structural composite parts.