碳纳米管接枝炭纤维对环氧树脂浸润性能的影响  

Preparation of a carbon nanotube/carbon fiber hybrid and its wettability with epoxy

作　　者：安锋[1,2] 吕春祥[1] 郭金海[1,2] 和树庆[1,2] 卢慧斌[1,2] 杨禹[1] 

机构地区：[1]碳纤维制备技术国家工程实验室中国科学院山西煤炭化学研究所,山西太原030001 [2]中国科学院研究生院,北京100049

出　　处：《新型炭材料》2011年第5期361-367,共7页New Carbon Materials

摘　　要：以乙炔为碳源、二茂铁为催化剂,通过雾化辅助化学气相沉积法(AACVD)制备多尺度杂化材料CNT/CF。利用扫描电镜(SEM)、透射电镜(TEM)表征所制CNT/CF的形貌及其微观结构。结果表明:在反应温度750℃～800℃、沉积30 min的条件下,碳纳米管(CNTs)能够以较高的密度均匀生长在炭纤维表面形成多尺度杂化材料CNT/CF。单纤维拉伸测试表明:在700℃～800℃、沉积30min的条件下所制CNT/CF的单纤维拉伸强度降低幅度小于13%;在反应温度750℃、沉积40min的条件下、单纤维拉伸强度降低幅度小于10%。纤维悬挂液滴法研究表明:所制CNT/CF比原始炭纤维对环氧树脂有更好的浸润性能。AbA carbon nanotube/carbon fiber （CNT/CF） hybrid was prepared via an aerosol-assisted chemical vapor deposition （AACVD） method using acetylene as carbon source and ferrocene as catalyst. The morphology and microstructure of the CNT/CF hybrid were characterized by SEM and TEM. It was found that CNTs were uniformly and densely grown onto CFs at 750-800 ℃ for 30 rain. Results obtained from single fiber tests showed that the tensile strength of the CNT/CF hybrid decreased by 13% after AACVD at 750-800 ℃ for 30rain com- pared to that of CFs, however, the tensile degradation was less than 10% after AACVD at 750℃ for 5 to 40 min. The wettability of the hybrid with epoxy resin was improved compared with that of the original CFs.

关 键 词：CNT/CF混合物 微观结构 力学性能 浸润性 

分 类 号：TB332[一般工业技术—材料科学与工程]