以氧化石墨烯为增强体,环氧树脂为基体,酚醛胺T-31为固化剂,制备了氧化石墨烯/环氧树脂复合材料.对该复合材料进行了FT-IR和热失重分析,测定了其邵氏硬度.结果表明,复合材料中产生了酯键,但该键的强度较弱,氧化石墨烯与环氧树脂间的结合强度不高；与纯环氧树脂相比,复合材料的热稳定性有所提高,随氧化石墨烯含量增加,T max先增大后减小,并在0．5％处达最大值；与纯环氧树脂相比,复合材料的邵氏硬度有所提高,随氧化石墨烯含量增加,邵氏硬度先增大后减小,并在0．3％处达最大值.
In this paper,epoxy resin was reinforced by graphene oxide to produce graphene oxide/epoxy resin composites,and the phenolic amine T-3 1 was as curing agent.FT-IR,TG and shore hardness of the composites were tested.The results show that a ester bond was formed in the composites,but the strength of this bond was weak,so the binding force between graphene oxide and epoxy resin was low.Compared with pure epoxy resin, the thermal stability of the composites increased.With increasing the content of graphene oxide,Tmax first in-creased and then decreased.When the content of graphene oxide was 0.5wt%,the thermal stability was opti-mum.Compared with pure epoxy resin,the shore hardness of the composites increased.With increasing the content of graphene oxide,the shore hardness first increased and then decreased.When the content of graphene oxide was 0.3wt%,the shore hardness was maximum.
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