摘要
多针头静电纺丝技术被认为是提高纳米纤维产量的有效方法,但场强控制存在困难。本文采用COMSOL Multiphysics多物理耦合场有限元模拟软件对多针头静电纺丝过程中场强的分布以及大小进行模拟研究,提出不等针长、不等针间距以及纺针圆形排布3种措施对多针头静电纺场强的大小及均匀度进行改进,并通过有限元模拟对上述3种多针头排布方式进行评价。此外,在多针头静电纺工艺的基础上施加辅助电极,旨在通过对电场方向走势的控制来降低纺丝过程中存在的不稳定现象,从而提高纺丝效率。
Multi-needle electrospinning is an effective approach to increase the nanofiber production, where difficulties exist in the control of field intensity. This paper employed COMSOL Multiphysics coupled fields finite element simulation software to simulate the distribution and magnitude of the electric field in the multi-needle electrospinning process, which was modified by employing three measures, including unequal needle length, unequal needle spacing and circular needle layout, aiming to improve the uniformity of the whole electric field intensity. The foresaid three methods were evaluated by means of finite element simulation. In addition, auxiliary electrodes were applied to the multi-needle electrospinning process in order to reduce the instability during the spinning process by controlling the electric field direction, thus enhancing the spinning efficiency.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2014年第4期21-25,31,共6页
Journal of Textile Research
基金
国家自然基金项目(51373121)
关键词
静电纺
多针头
有限元
改善
electrospinning
muhi-needle
finite element
improvement
作者简介
陈威亚（1990-）,女,硕士生.主要研究方向为静电纺丝过程建模及纳米纤维生产过程控制.｜
刘延波,通信作者,E-mail：yanboliu@gmail.com.
