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空间电场对单根纳米纤维沉积的影响分析

DOI: 10.11830/ISSN.1000-5013.2009.05.0502

Keywords: 近场静电纺丝, 纳米纤维, 电场分布, 可控沉积

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Abstract:

基于近场静电纺丝,分别讨论单根纳米纤维在平面硅片、图案化硅片基底上的沉积规律.当收集板运动速度大于纳米纤维喷射速度时,将获得直线状纳米纤维; 而当收集板运动速度小于纳米纤维喷射速度,纳米纤维易受电场力和电荷排斥力的影响而产生弯曲鞭动,并缠绕成纳米纤维带或螺旋状结构.采用图案化硅基作为收集板时,电场分布发生变化,微结构表面电场强度大于其他区域.纳米纤维在微结构表面产生聚集,且微结构表面电场的增强也加快纳米纤维喷射速度.

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