静电纺丝制备PVA/PAA/GO三元复合纤维材料

摘要

采用静电纺丝技术成功制备聚乙烯醇( PVA)/聚丙烯酸( PAA)/氧化石墨烯( GO)三元复合纤维材料,分别采用扫描电子显微镜( SEM)、傅立叶转换红外光谱( FT-IR)等技术对复合纤维材料的形貌及组分进行了表征. 同时详细研究了制备过程中组分浓度、针头尺寸与加入量的最优条件. 结果表明,PVA的浓度在8%~9%范围内能够单独纺丝形成均匀的纤维结构,加入PAA/GO混合溶液后,控制适当粘度即可电纺成丝且热处理后形成的纤维由水溶性转变为非水溶. 本研究工作为静电纺丝复合纤维材料的设计与制备提供了有益的探索.%The ternary composite fiber materials using poly (vinyl alcohol) (PVA),polyacrylic acid (PAA) and graphene oxide ( GO) have been prepared successfully by the electrospinning technique. The morphologies and components of the composite fiber materials have been characterized by scanning electron microscope ( SEM) and Fourier transform infrared spectroscopy ( FT-IR) , respectively.The preparation process is optimized including composition,needle size and addition amount.The results show that PVA with concentration of 8~9 wt.% range can be independently electrospun to yield uniform fiber structure.When mixed with the PAA/GO solution,the modest controls of viscosity favors to electrospin.The heat treatment made the fiber structures to change from water-soluble to insoluble structures.The present work would provide beneficial exploration for the design and preparation of composite fi-ber materials by the electrospinning technique.