国产M40J级石墨纤维与氰酸酯树脂的界面性能  

Interfacial Properties of Domestic M40J Carbon Fiber/Cyanate Ester Composites

作　　者：赵臻璐 刘洪新 张鑫 孙天峰 黎昱 陈维强 顾轶卓[2] 梁春祖 ZHAO Zhenlu;LIU Hongxin;ZHANG Xin;SUN Tianfeng;LI Yu;CHEN Weiqiang;GU Yizhuo;LIANG Chunzu(Beijing Spacecrafts Manufacturing Co.,Ltd.,Beijing 100094,China;School of Materials Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京卫星制造厂有限公司,北京100094 [2]北京航空航天大学材料科学与工程学院,北京100191

出　　处：《材料导报》2022年第17期205-209,共5页Materials Reports

摘　　要：为分析国产M40J级高模高强型石墨纤维在航天器结构中应用的可行性,对两种国产的M40J级石墨纤维(GCM40J-A、GCM40J-B)与航天器用氰酸酯树脂(BS-4)体系的界面性能进行评价。采用扫描电镜(SEM)、原子力显微镜(AFM)、热重法(TG)、表面张力仪、动态接触角法、红外光谱(IR)等分别对两种国产的M40J级石墨纤维、航天器用氰酸酯树脂体系的特性以及纤维与树脂间的界面性能进行分析,并与东丽M40J石墨纤维进行对比。结果表明,三种纤维表面沟槽明显,纤维表面粗糙度较相近;GCM40J-A、GCM40J-B、M40J与氰酸酯的接触角分别为107°、101.5°和100.3°;三种纤维上浆剂的耐热温度均高于230℃,比氰酸酯基体的固化温度高;GCM40J-A、GCM40J-B纤维上浆剂与氰酸酯的反应程度高于M40J,GCM40J-A/BS-4和GCM40J-B/BS-4的短梁剪切强度分别为85.9 MPa、84.7 MPa,高于M40J/BS-4(72.5 MPa)。In order to analyze the feasibility of the application of domestic M40J carbon fiber in the spacecrafts, the interfacial properties of two kinds of domestic M40J carbon fibers(GCM40J-A, GCM40J-B) and cyanate ester(BS-4) system were evaluated by SEM, AFM, TG, surface tension meter, dynamic contact angle test and IR. The results show that the surface roughness of domestic M40J carbon fibers is similar to Toyal M40J carbon fiber, and the dynamic contact angles between three kinds of carbon fibers and BS-4 are 107°(GCM40J-A), 101.5°(GCM40J-B) and 100.3°(M40J) respectively. The heat resistance temperature of the three kinds of fiber sizing agents are higher than 230 ℃, which is also higher than the curing temperature of cyanate ester. Moreover, the sizing agents of GCM40J-A and GCM40J-B have higher reactivity than that of M40J, and the interlaminar shear strengths(ILSS) of GCM40J-A/BS-4 and GCM40J-B/BS-4 are 85.9 MPa and 84.7 MPa, which are higher than that of M40J/BS-4(72.5 MPa).

关 键 词：石墨纤维 氰酸酯 表面特性 界面性能 力学性能 

分 类 号：TB33[一般工业技术—材料科学与工程]