聚苯胺/聚乙烯醇纳米纤维的制备与表征  

Preparation and Characterization of Polyaniline/Poly(vinyl alcohol) Composite Nanofiber

作　　者：王香琴[1] 辛斌杰[1] 许鉴 刘岩[1] 

机构地区：[1]上海工程技术大学服装学院,上海201620 [2]上海纺织控股(集团)公司,上海200082

出　　处：《材料导报》2014年第4期65-69,91,共6页Materials Reports

基　　金：上海工程技术大学大学生创新项目(cs1209004);上海工程技术大学研究生科研创新项目(2012yjs44);国家留学基金(留金发[2012]3022)

摘　　要：以十二烷基苯磺酸(DBSA)为表面活性剂和掺杂剂,通过乳液聚合的方法制备聚苯胺/聚乙烯醇(PANI/PVA)复合乳液用于静电纺丝,制备出超细复合纤维毡,通过SEM、XRD和力学测试表征PANI/PVA超细复合纤维毡的外观形貌、纤维直径、结晶度及其力学性能。结果表明:有机磺酸掺杂后的聚苯胺导电性能达到1.28S/cm;1459cm-1处醌环和苯环上的C=C伸缩振荡峰和1697cm-1处醌环上C=N伸缩振荡峰的聚苯胺特征峰明显;YG006型电子单纤维强力机的测试发现,PANI/PVA纤维集合体的面密度对其力学性能的影响显著;当纺丝工艺条件设定为接收距离18cm、电压24kV时,PANI/PVA纤维直径达到600nm,直径分布小于150nm,PANI微颗粒分散于PVA纤维基体表面。Polyaniline/polyvinyl alcohol （PANI/PVA） nanofibers were electrospun after the preparation of PA- NI/PVA composite emulsion using emulsion polymerization, dodecyl benzenesulfonic acid （DBSA） was selected as a surfactant and dopant. The surface morphology, fiber diameter and crystal structure of PANI/PVA ultrafine compo- site fibers were characterized using scanning electron microscopy （SEM） and X-ray diffraction （XRD）. The experi- mental results indicate that the peaks at 1459 cm-1 attributed to quinone ring and the benzene ring C=C stretching vi- bration peak and the band at 1697 cm-1 assigned to quinone ring C=N stretching vibration peak of PANI peaks were evident. The mechanical properties of PANI/PVA composite fiber mats were tested by YG006 electronic single fiber strength machine, the density of PANI/PVA membrane has effect on its mechanical properties. The optimized set- tings of electrospinning were that the tip-target distance at 18 cm, the applied voltage at 24 kV, the diameter of the electrospun fibers could be up to 600 nm with a distribution less than 150 nm, the PANI particles could be embedded u- niformly in the fibers.

关 键 词：聚苯胺 掺杂机理 纳米纤维 功能复合 电致变色 

分 类 号：TB381[一般工业技术—材料科学与工程]