氧化石墨烯对环氧-橡胶两相体系性能的影响研究
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摘要
采用不同添加量的氧化石墨烯(GO)对环氧树脂-丁腈橡胶两相体系进行改性。采用FT-IR对复合材料进行结构表征,以DMA研究GO添加量对复合材料力学性能的影响,并通过粘接性能变化分析GO对复合材料的湿热老化性能影响。结果表明,GO通过本身的富氧基团连接到EP-CTBN体系中,它的加入能提高复合材料的贮能模量,降低损耗因子和提高玻璃化转变温度,同时GO的加入不会影响复合材料的耐湿热性能。
The EP-CTBN based two-phase system was modified by adding different amount of graphene oxide(GO).The structure of the composite system was characterized by FTIR. The effects of GO content on the dynamic mechanical properties were studied by DMA, and the hydrothermal aging properties of the composite were analyzed by adhesion strength changes. The results showed that with adding GO, the oxygen-rich groups on GO were linked to the EP/CTBN system, the storage modulus and glass transition temperature were increased, the loss factor was decreased, but the hydrothermal aging properties were not changed very much.
The EP-CTBN based two-phase system was modified by adding different amount of graphene oxide(GO).The structure of the composite system was characterized by FTIR. The effects of GO content on the dynamic mechanical properties were studied by DMA, and the hydrothermal aging properties of the composite were analyzed by adhesion strength changes. The results showed that with adding GO, the oxygen-rich groups on GO were linked to the EP/CTBN system, the storage modulus and glass transition temperature were increased, the loss factor was decreased, but the hydrothermal aging properties were not changed very much.
引文
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