碳纳米杂化材料/环氧树脂复合材料界面性能的探讨

Discussion of interface property of carbon nanomaterial/epoxy resin composite

通过将不同比例的石墨烯/碳纳米管杂化材料(石墨烯与碳纳米管质量比为1∶1、1∶2和2∶1)添加到环氧树脂体系中制备碳纳米杂化材料/环氧树脂复合材料体系。通过研究复合体系的流变行为和差示扫描量热法(DSC)行为来分析碳纳米材料和环氧树脂之间的界面性质,得出结论:碳纳米杂化材料的加入虽会在一定程度上限制固化反应的进行,但会增大树脂和填料之间的自由体积,这样就可以提供给大分子链段更多移动空间,由流变行为知1∶1的杂化材料与树脂之间的界面亲和性是最好的。

The carbon nanomaterials/epoxy resin（EP）composites were made with the pre-prepared 1∶1,1∶2and 2∶1（the ratio of grapheme：multi carbon nanotubes were 1∶1,1∶2and 2∶1）carbon nanomaterials and epoxy resin.The interface property between nanomaterial and epoxy resin was analyzed by studying the rheological behaviors and DSC of composite.The conclusion was summarized that although the introduction of carbon nanomaterial showed a limitation effect on the curing process,the enlarged free volume arising from the interface between the carbon nanomaterial and EP,which provided more space for the polymer chain segments to move.Besides,the interface compatibility of 1∶1hybrid material between carbon nanomaterial and EP was the best.