摘要
以壳聚糖(CS)、聚乙烯醇(PVA)和纳米石墨粉(G)为原料,利用静电纺丝技术分别制备了壳聚糖/聚乙烯醇共混纳米纤维及壳聚糖/聚乙烯醇/纳米石墨粉复合纳米纤维,采用原位聚合法在纤维表面聚合导电聚合物聚苯胺,得到具有优良导电性能的聚合CS/PVA和聚合CS/PVA/G复合纳米纤维。通过扫描镜、X射线衍射、红外光谱等测试手段对纤维的形貌和结构进行表征。结果表明,聚苯胺均匀包覆在经原位聚合的复合纳米纤维表面,提高了纤维的导电性能,纳米石墨粉与聚苯胺形成插入化合物进一步提高了纤维的导电性能。
Chitosan( CS),polyvinyl alcohol( PVA) and nano graphite( G) were chosen as raw materials to prepare CS / PVA nanofibers and CS /PVA /G nanofibers via electrospinning approach. Then,polyaniline was coated on the resulting nanofiber surface by in-situ polymerization to form electrical conductive composite fibers. The morphology and composition of nanofibers were characterized by SEM,XRD and FT-IR,and then the conductivity of composite nanofibers was also measured and compared. It is found that the polyaniline conductive layer can definitely increase the electrical conductive property of CS /PVA nanofibers,furthermore,nano graphite can obviously enhance the conductive effect of polyaniline in CS /PVA /G nanofibers.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2014年第9期150-153,158,共5页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(51273097
51306095)
泰山学者建设工程专项经费
关键词
纳米纤维
壳聚糖
聚乙烯醇
静电纺丝
纳米石墨粉
聚苯胺
nanofibers
chitosan
polyvinyl alcohol
electrospinning
nanometer graphite
polyaniline
