碳纤维表面生长碳纳米管及其增强复合材料性能的研究  

Preparation and research of growth of carbon nanotube on carbon fiber and its composite materials

作　　者：范汶鑫 王延相[1,2] 陈纪强 袁燕[2] 李爱国[2] 王成国[2] 

机构地区：[1]山东大学材料科学与工程学院材料液固结构演变与加工教育部重点实验室,济南250061 [2]山东大学材料科学与工程学院碳纤维工程技术研究中心,济南250061

出　　处：《功能材料》2015年第20期20097-20101,20107,共6页Journal of Functional Materials

基　　金：国家重点基础研究发展计划(973计划)资助项目(2011CB605605;2011CB605601);山东省自然科学基金资助项目(ZR2011EMM002)

摘　　要：通过电化学阳极氧化法改性碳纤维表面,利用浸渍法在连续的碳纤维表面加载了均匀的催化剂前驱体涂层,并通过化学气相沉积法(CVD)在碳纤维表面催化生长了均匀、规整的碳纳米管。利用场发射扫描电镜(FESEM)研究了电化学氧化电流强度对碳纤维表面加载催化剂颗粒的形貌与碳纤维表面催化生长碳纳米管形貌的影响,发现最佳的电化学氧化电流强度为0.4 A;Co作为催化剂时,500℃气相沉积10min后制备的复合材料层间剪切强度与未做任何处理的碳纤维及脱浆后的碳纤维作为增强体时相比,分别提高了11.0%与26.5%。It was reported that the catalyst precursor was uniformly loaded on carbon fiber modified by electrochemical anodic oxidation via dipping method,on which CNTs with a good alignment was uniformly deposited by catalytic decomposition of acetylene using chemical vapor deposition(CVD).The effect of current strength on the morphology of catalyst particles and CNTs on carbon fiber surface was investigated by field emission scanning electron microscope(FESEM).The different process parameters such as growth temperature,different catalysts and the position of deposition in relation to morphology and quality of the products have been investigated.It was found that the proper current strength was 0.4Aby this study.In contrast to the untreated carbon fiber and desized carbon fiber,the interlaminar shear strength of composite with CNTs grown on carbon fiber with Co used as catalyst as reinforcement increased 11% and 26.5%,respectively.

关 键 词：电化学阳极氧化 碳纤维 碳纳米管 层间剪切强度 

分 类 号：TQ342.31[化学工程—化纤工业]