用改良的 Hummers法制备出氧化石墨烯(GO),再通过溶液共混,逐步升温固化制备得到 GO/呋喃树脂复合材料。利用 FTIR、XRD和 SEM对 GO/呋喃树脂复合材料的微观结构和形貌进行表征,同时对其黏度、玻璃化转变温度、热分解温度、残炭率及硬度进行了检测。结果表明,GO 较均匀地分散于呋喃树脂基体中,且两者界面相容性较好。GO/呋喃树脂复合材料的热性能和力学性能相对于纯树脂都有一定的提高。与纯呋喃树脂相比,当 GO的添加量为0.3 wt%时,GO/呋喃树脂复合材料的玻璃化转变温度提高了36℃,热失重5%时的温度提高了16℃；当 G O的添加量为0.1 w t%时,G O/呋喃树脂复合材料的残炭率从50.7%提高到53.9%,邵氏硬度从90提高到97。
Graphene oxide (GO)was prepared by a modified Hummers method,and then GO/furan resin compos-ites were prepared through the solution blending and curing by increasing temperature step by step.The structure and morphology of the composites were characterized by FTIR,XRD and SEM.Meanwhile,the viscosity,glass transition temperature,thermal decomposition temperature,char yield and hardness were tested in detail.The re-sults show that GO has good dispersibility in furan resin matrix and the interface between GO and furan resin of composites is quite compatible.Mechanical and thermal properties of GO/furan resin composites can be improved obviously.The glass transition temperature of the GO/furan resin composites with 0.3wt% of GO added increase by 3 6 ℃,and 5% mass loss temperature increased by 1 6 ℃ respectively compared with that of the pure furan resin. The char yield of GO/furan resin composites with 0.1wt% of GO added increase from 50.7% to 53.9% and the shore hardness increase from 90 to 97.
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