引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1509次   下载 1357 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Surface Modification of Vapor-grown Carbon Nanofibers in Radio Frequency Plasma
Hong-yan Liu1,2, Yong-zhen Yang1,3, Wei-yun Ji1,2, Xu-guang Liu*1,2, Bing-she Xu1,3
1.Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China;2.College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024,Chi;3.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Chi
Abstract:
"Vapor-grown carbon nanofibers (VGCNFs) were treated in radio frequency (RF) plasma to activate their surface and thus to improve the compatibility with the matrix in polymer composites. The surface of VGCNFs was modified in atmospheres containing different ratios of O2 and Ar. Fourier transform infrared spectroscopy and thermogravimetric measurement shows that when the O2 content in mixture gases was 5%, C-O and O-H functional groups were produced abundantly in the surface of the VGCNFs. When O2 content increased to 8%, most of the surface of carbon fibers was severely oxidized, resulting in defects in structures of the inner layers of VGCNFs."
Key words:  Vapor-grown carbon nanofibers, Surface treatment, Functional group, Plasma
FundProject:
射频等离子体对气相生长碳纳米纤维的氧化改性
刘红艳1,2, 杨永珍1,3, 吉卫云1,2, 刘旭光*1,2, 许并社1,3
1.太原理工大学新材料界面科学与工程教育部国家重点实验室,太原030024;2.太原理工大学化学化工学院,太原030024;3.太原理工大学材料科学与工程学院,太原030024
摘要:
"采用不同流量比率的氧气和氩气作为载气,氧化修饰气相生长碳纳米纤维(VGCNFs).傅立叶红外光谱、热重以及Boehm's滴定法分析结果表明,当氧气含量为4%时,碳纤维表面生成有大量O-H官能团;然而,当氧气含量增加为5%时,在其表面不仅生成有-OH官能团,而且还有-CHx、-CO等官能团出现,说明在适当的氧浓度条件下有利于VGCNFs修饰;但氧气含量继续增加到8%时,其纤维内层石墨晶格氧化断裂,微晶结构被破坏."
关键词:  气相生长碳纳米纤维,表面改性,官能团,射频等离子体
DOI:10.1088/1674-0068/20/06/759-762
分类号: