石墨烯改性环氧树脂/碳纤维复合材料的制备及性能研究  

Preparation and Properties of Epoxy Resin/Carbon Fiber Composites Modified by Graphene

作　　者：任斌 任军 REN Bin;REN Jun(Jiaozuo Coal Industry Group Co.,Ltd.,Jiaozuo 454000,China;Henan Xinhongrun Technical Service Co.,Ltd.,Jiaozuo 454000,China)

机构地区：[1]焦作煤业(集团)有限责任公司,河南焦作454000 [2]河南鑫泓润技术服务有限公司,河南焦作454000

出　　处：《塑料科技》2024年第3期87-90,共4页Plastics Science and Technology

摘　　要：环氧树脂/碳纤维复合材料存在脆性大、抗冲击韧性较差的问题。为改进环氧树脂/碳纤维的性能,利用石墨烯对环氧树脂/碳纤维进行改性处理。使用硅烷偶联剂KH-560对石墨烯进行表面接枝。将接枝石墨烯与水性环氧树脂进行反应,以制备环氧树脂/碳纤维/石墨烯复合材料。结果表明:石墨烯含量为5%时,碳纤维与环氧树脂之间的界面性能最好。经过KH-560接枝后,环氧树脂的弹性模量、拉伸位移、界面剪切强度均得到提升。Epoxy resin/carbon fiber composites have the problems of high brittleness and poor impact toughness.In order to improve the properties of epoxy resin/carbon fiber,graphene was used to modify epoxy resin/carbon fiber.Graphene was grafted with silane coupling agent KH-560.Grafted graphene was reacted with waterborne epoxy resin to prepare epoxy resin/carbon fiber/graphene composites.The results show that when graphene content is 5%,the interface properties between carbon fiber and epoxy resin are the best.After KH-560 grafting,the elastic modulus,tensile displacement,and interfacial shear strength of epoxy resin were improved.

关 键 词：石墨烯改性 环氧树脂/碳纤维 力学性能 化学接枝 

分 类 号：TB332[一般工业技术—材料科学与工程]