原位聚合法对碳纤维的表面活化  

Surface Activation of Carbon Fiber by In-situ Polymerization

作　　者：罗苁聪 刘铁民[1] 幺伟 林雅[1] 

机构地区：[1]西安建筑科技大学材料与矿资学院,西安710055 [2]吉林联科特种石墨材料有限公司,吉林省吉林132200

出　　处：《工程塑料应用》2018年第1期110-114,共5页Engineering Plastics Application

基　　金：陕西省教育厅自然科学研究项目(11JK0598);国家博士后基金项目(20090451371);西安建筑科技大学人才基金项目(DB09039)

摘　　要：研究越过碳纤维表面活化惰性势垒的束缚,综合考虑物理和化学两方面的影响因素,通过物理的超声振荡法打开晶片之间的空间,再用偶氮二异丁腈引发甲基丙烯酸原位聚合,在碳纤维表面的结晶缝隙中生长出具备化学活性的聚合物支链,达到活化碳纤维表面的目的。表面能谱和拉曼光谱结果表明,超声振荡在不破坏碳纤维原有晶体结构的基础上,增加了其表面氧含量和晶片边缘的无序程度,同时增大了晶片层间距;傅立叶变换红外光谱和扫描电子显微镜结果表明,原位聚合法能够在碳纤维表面的结晶缝隙中生长出具备化学活性的聚合物"支链"。In order to achieve the purpose of activated carbon fiber surface, firstly, the space between the wafers is opened through physical ultrasonic vibration method, and then in-situ polymerization of methacrylic acid was initiated by azobisisobutyronitrile, which would lead to the growth of polymer branched chain with chemical activity on the surface of carbon fiber, and the manacle of carbon fiber surface inert barrier was overcome. The results of energy dispersive spectrometer and Raman spectra shows that not damaging its original crystal structure, ultrasonic vibration increases oxygen content, the disorder, and the spacing on the surface of carbon fiber. Infrared Spectroscopy and Scanning Electron Microscopy shows that polymer chains with active functional groups on the surface of carbon fiber are generated by in-situ polymerization.

关 键 词：碳纤维 表面活化 超声振荡 原位聚合 

分 类 号：TQ342.74[化学工程—化纤工业]