石墨烯/酚醛树脂/炭纤维层次复合材料的制备及其性能  

Preparation and properties of graphene oxide-carbon fiber/phenolic resin composites

作　　者：刘燕珍[1] 李永锋 杨永岗[1] 温月芳[3] 王茂章[1] 

机构地区：[1]中国科学院山西煤炭化学研究所,山西太原030001 [2]常州第六元素材料科技股份有限公司,江苏常州213100 [3]浙江大学工学部化学工程与生物工程学系,浙江杭州310058

出　　处：《新型炭材料》2012年第5期377-384,共8页New Carbon Materials

摘　　要：分别以氧化石墨粉(GO)、还原氧化石墨烯乙醇悬浮液(RGO)和热法还原石墨烯粉(TRG)为填料,分散于酚醛树脂(PR)的乙醇溶液中,再将这些基体混合物涂覆于炭纤维(CF)布上,经热压成型工艺制备氧化石墨烯/酚醛树脂/炭纤维、还原氧化石墨烯乙醇悬浮液/酚醛树脂/炭纤维、热法还原氧化石墨烯/酚醛树脂/炭纤维层次复合材料。研究了GO、RGO和TRG对复合材料结构、压缩性能、弯曲性能及磨擦性能的影响。结果表明,与纯酚醛树脂/炭纤维复合材料相比,当纳米填料的质量分数仅为0.1%时,层次复合材料的压缩性能可显著提高,其中,热法还原氧化石墨烯/酚醛树脂/炭纤维的压缩强度和模量分别提高了178.9%,129.5%;弯曲性能也可得到一定的改善。还原氧化石墨烯乙醇悬浮液/酚醛树脂/炭纤维层次复合材料的最大储能模量可提高75.2%。所有改性石墨烯/酚醛树脂/炭纤维层次复合材料的Tg均有所降低。Graphene oxide-carbon fiber/phenolic resin, chemically-reduced graphene oxide-carbon fiber/phe- nolic resin, and thermally-reduced graphene oxide-carbon fiber/phenolic resin composites were prepared by blending a graphene oxide suspension in an ethanol vacuum drying and hot pressing. The effects of the solution of phenolic resin with carbon fibers, followed by type of graphene oxide on structure, compressive perform- ance and friction properties of the composites were investigated. Results showed that the compressive properties of the composites were greatly improved with a 0.1 mass graphene oxide % loading compared with the pure car- bon fiber/phenolic resin composite. The compressive strength and modulus of the thermally-reduced graphene oxide/phenolic resin/carbon fiber composites were increased by 178.9%, 129.5%, respectively, and the high- est energy storage modulus of the chemically-reduced graphene oxide/phenolic resin/carbon fiber composite was increased by 75.2% compared with the pure carbon fiber/phenolic resin composite. The glass transition tempera- tures of all the composites containing graphene oxide decreased.

关 键 词：氧化石墨烯 还原氧化石墨烯 炭纤维 层次复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]