PVA/Au纳米复合纤维的制备及表征  

Preparation and characterization of PVA/Au composite nanofiber

作　　者：吴涛[1] 钱琛[1,2] 

机构地区：[1]扬州工业职业技术学院,江苏扬州225127 [2]江苏省环境材料与环境工程重点实验室,江苏扬州225002

出　　处：《合成纤维工业》2011年第2期34-37,共4页China Synthetic Fiber Industry

基　　金：江苏省环境材料与环境工程重点实验室项目(K090032)

摘　　要：以聚乙烯醇(PVA)为还原剂和保护剂,采用PVA还原氯金酸(HAuCl_4)制备纳米金(Au),一步法制备PVA/Au溶液,通过静电纺丝制备了PVA/Au纳米复合纤维。利用紫外可见光谱仪、透明电镜和扫描电镜对PVA/Au纳米复合纤维进行了表征。结果表明:随着HAuCl4浓度的增加,Au纳米粒子的粒径逐渐增大;HAuCl_4的浓度对纳米复合纤维的形貌影响较大,在HAuCl_4浓度较低或较高时,均可以获得直径较为均一的PVA/Au纳米复合纤维;低电导率和高粘度的PVA/Au溶液可得到纤维直径均一的纳米复合纤维。Using polyvinyl alcohol （PVA） as a reductant and a protectant, gold （Au） nanoparticles were produced from gold chloric acid （HauCl4）, from which PVA/Au solution was prepared by one-step process and was spun into PVA/Au composite nanofiber via electrospinning process. PVA/Au composite nanofiber was characterized with ultraviolet-visible spectroscope, trans- parent electron microscope and scanning electron microscope. The results showed that the Au nanoparticle size gradually increased with the increase of HAuCl4 concentration. The HAuCl4 concentration had a great effect on the morphology of the composite nanofiber. PVA/Au composite nanofiber with uniform diameter can be obtained from PVA/Au solution with low conductivity and high viscosity at relatively high or low HAuCl4 concentration.

关 键 词：静电纺丝 聚乙烯醇 氯金酸 纳米复合纤维 

分 类 号：TB383.1[一般工业技术—材料科学与工程]