碳纤维用耐高温型环氧树脂上浆剂的制备及性能研究  

The Preparation and Performance Study of High Temperature Resistant Epoxy Resin Sizing Agent for Carbon Fiber

作　　者：高艳 杨小兵 廖国峰 许少少 GAO Yan;YANG Xiaobing;LIAO Guofeng;XU Shaoshao(Jinggong(Shaoxing)Composite Material Technology R&D Co.,Ltd.Shaoxing 312030,Zhejiang,China;Jinggong(Shaoxing)Composite MaterialsCo.,Ltd.Shaoxing 312030,Zhejiang,China)

机构地区：[1]精功(绍兴)复合材料技术研发有限公司,浙江绍兴312030 [2]精功(绍兴)复合材料有限公司,浙江绍兴,312030

出　　处：《高科技纤维与应用》2020年第4期15-19,共5页Hi-Tech Fiber and Application

摘　　要：本文用二乙醇胺改性四官能团环氧树脂MF-4101H,采用自乳化法制备耐高温型环氧树脂乳液。研究了二乙醇胺的最佳用量、反应工艺参数对实验结果的影响。结果表明,当环氧树脂与二乙醇胺按摩尔比为1∶3时,所制备的耐高温型环氧树脂上浆剂的乳液稳定性最好;最佳反应条件为80℃下反应2.5 h;与未上浆的碳纤维相比,上浆后的碳纤维表面的沟槽浅,表面缺陷也显著降低;上浆后的碳纤维所制备的复合材料层合板在160℃高温下,层间剪切强度仍能保持65%以上。A tetra-functional epoxy resin MF-4101H was modified with di-ethanolamine,and a high-temperature-resistant epoxy resin emulsion was prepared by a self-emulsification method.The effects of the amount of di-ethanolamine and the reaction process parameters on the experimental results were studied.The results show that when the epoxy resin and di-ethanolamine have a molar ratio of 1∶3,the emulsion stability of the prepared high temperature resistant epoxy resin sizing agent is the best.The optimal reaction conditions are 2.5 h at 80℃.Compared with the un-sized carbon fiber,the grooves on the surface of the sized carbon fiber are shallow,and the surface defects are also significantly reduced.At 160℃,the composite laminates prepared from sizing carbon fibers can still maintain inter-laminar shear strength above 65%.

关 键 词：上浆剂 环氧树脂 碳纤维 热稳定性 

分 类 号：TQ342.74[化学工程—化纤工业] TQ323.5