【作者】 朱美芳； 左伟伟； 俞昊； 陈彦模；

【Author】 Zhu Meifang Zuo Weiwei Yu Hao Chen Yanmo(State Key Lab for Modification of Chemical Fibers & Polymer Materials College of Material Science & Engineering, Donghua University, Shanghai 20051)

【机构】 纤维材料改性国家重点实验室东华大学材料学院；

【摘要】 <正> 一前言静电纺丝是一项简单方便、廉价而且对环境无污染的纺丝技术。其纤维直径在微米和纳米之间,相对于一般的商业织物,具有很大的比表面积,表面具有小孔等特殊形态。这样的特性使得该纤维在过滤,组织工程,超敏感传感器等方面有很大的潜在应用前景。因而,理解该种制备技术的原理进而为拓展其产物的应用领域具有非常重要的意义。本文主要以PHBV(羟基丁酸酯和羟基戊酸酯共聚物)的氯仿溶液为对象讨论该种制备技术制备超细纤维的原理。更多还原

【Abstract】 Electrospinning is a process by which sub-micron to nanoscale polymer fibers can be produced using an electrostatically driven jet of polymer solution or polymer melt. The small fiber diameters and the porous structure of electrospun fabrics result in a high specific area that is beneficial in a wide variety of applications including filters, membranes, wound dressings, vascular grafts and tissue engineering scaffolds. Images of electrospun PHBV(Poly (hydroxybutyrate-co-valerate)) jet instability region revealed that the superfine fibers did not result from the splitting of the primary jet into multiple filaments. But it was established that the essential mechanism of electrospinning were those of the whipping instabilities.更多还原