高等学校化学学报2013，Vol.34Issue(2)：288-294,7.DOI:10.7503/cjcu20120298
掺杂羧基化碳纳米管的纳米碳纤维前驱体的制备及表征
Preparation and Characterization of the Precursor Nanofiber of Nano-Carbon Fibers with Carboxylated Carbon Nanotubes
摘要
Abstract
In order to achieve the precursor nanofiber of nano-carbon fibers with integrated structure and good properties, hybrid polyacrylonitrile(PAN) nanofibers with different loading of carboxylated multi-walled carbon nanotubes ( MWCNTs) were fabricated through electrospinning. Scanning electron microscopy ( SEM) , polarized FTIR spectroscopy, transmission electron microscopy (TEM) , Raman spectroscopy and the tensile test were adopted to study the microstructure and mechanical property of the hybrid nanofiber. The diameter of PAN nanofibers was decreasing with the adding of MWCNTs, but the sample containing 5% (mass fraction) MWCNTs displayed a diameter mutation. The experimental results showed that adding MWCNTs into the polymer was propitious for the orientation of molecular chains. Most of MWCNTs embedded in the PAN and aligned along the fiber axis. When the concentration of MWCNTs was below 5% , the tensile strength and modulus of PAN nanofibers were both enhanced with the loading of MWCNTs, which respectively reached to 88. 6 MPa and 3. 21 GPa after adding 3% MWCNTs.关键词
聚丙烯腈/多壁碳纳米管/静电纺丝/杂化纳米纤维/微观结构Key words
Polyacrylonitrile/ Multi-walled carbon nanotubes ( MWCNTs) / Electrospinning/ Hybrid nanofibers/ Microstructure分类
化学化工引用本文复制引用
薛杉杉,隋刚,杨小平..掺杂羧基化碳纳米管的纳米碳纤维前驱体的制备及表征[J].高等学校化学学报,2013,34(2):288-294,7.基金项目
国家自然科学基金(批准号:51073019,51142004)资助. （批准号:51073019,51142004）
