摘要
为了改善多壁碳纳米管(MWNTs)在溶剂N,N-二甲基乙酰胺(DMAc)中的分散性,提高MWNTs与芳纶1313(PMIA)基体界面的结合性能,用混酸对MWNTs进行了处理,用FT-IR对处理前后的MWNTs进行了表征,发现处理后的MWNTs表面接上了羧基。通过溶液共混的方法制得了PMIA/MWNTs纳米复合薄膜,并用SEM和TEM对其进行了表征,发现处理后的MWNTs在PMIA基体中的分散更为均匀。
In order to improve the dispersion of multi-walled carbon nanotubes （MWNTs） in N,N-Dimethylaee-mide （DMAc） and modify the compatibility between MWNTs and poly （m-phenylene isophtalamide） （PMIA）, MWNTs were treated by an optimized H2 SO4/HNO3 acid. The changes of MWNTs after treated were measured by FT-IR,and carbonyls are found on the surface of MWNTs. PMIA composites containing 1wt% nanotubes were processed by dissolving MWNTs in N, N-Dimethylacemide and mixing with PMIA thereafter, the measurement of scanning electron microscope and transmission electron microscope should observe that the functionalized nanotubes are better dispersed in the PMIA composites.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2009年第2期325-327,共3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(2006CB708603)
关键词
多壁碳纳米管
酸处理
芳纶1313
分散性能
multi-walled carbon nanotubes
acid treatment
poly（m-phenylene isophthalamide）
dispersion
