摘要
以镍为催化剂,采用化学气相沉积法制备螺旋纳米碳纤维,并通过浓硝酸氧化法对螺旋纳米碳纤维进行处理,在加热条件下,制备了螺旋纳米碳纤维/聚乙烯醇复合材料.实验考察了螺旋纳米碳纤维含量对复合材料力学性能的影响,当螺旋纳米碳纤维添加量为0.4%(ω)时,复合材料的拉伸性能提高32%.通过扫描电镜对复合材料的拉伸断口进行分析,螺旋纳米碳纤维均匀地分散在基体中,有效增强了复合材料的抗拉性能.
Micro-coiled carbon nanofibers were prepared by chemical vapor deposition using Ni as catalyst. The composite of micro-coiled carbon nanofibers polyvinyl alcohol was synthesized at heating condition with the microcoiled carbon nanofibers treated by concentrated nitric acid. The effect of content of microcoiled carbon nanofibers on mechanic properties of composite was carried out. The mechanic properties of composite were improved up to 32% by the mono-disperse micro-coiled carbon nanofibers 0.4%（ω）, as characterized by SEM on the fracture section of composite, the nanofibers were uniformly distributed in the PVA base.
出处
《过程工程学报》
CAS
CSCD
北大核心
2009年第2期413-416,共4页
The Chinese Journal of Process Engineering
基金
中国博士后科学基金资助项目(编号:20060390979)
辽宁省教育厅青年计划基金资助项目(编号:20060731)
关键词
螺旋纳米碳纤维
聚乙烯醇
复合材料
拉伸性能
microcoiled carbon nanofibers
polyvinyl alcohol
composite
tensile strength
