摘要
旋转收集法是静电纺丝中收集取向纤维的主要方法,但试验表明仅仅依靠高速旋转难以获得取向纤维,由此表明许多因素影响纤维取向.采用Maxwell软件对静电纺丝中不同条件下的电场分别进行仿真,分析了电场分布对纤维取向的影响.根据仿真结果,提出了改善电场分布和增强纳米纤维取向效果的有效方法,包括选择对称的框架结构、穿套辅助板的喷丝嘴、中继环形电极,按照最佳电场分布改进静电纺丝装置,并进行了静电纺丝,获得了取向较高的静电纺纳米纤维,证实了该仿真结果的准确性.
Rotating collection is an effective device to collect aligned electrospun fibers. However, experimental results showed that it was difficult to obtain electrospun fibers alignment just depending on high speed rotation, which suggested that fibers alignment may be influenced by other factors. The electric fields under different conditions were simulated using the software of Maxwell and their effects on the fibers alignment were analyzed. According to the simulation results, the effective methods that could improve electric field distribution, and increase fiber alignment were proposed. They included symmetrical frame electrode, spinning nozzle with auxiliary metal board and relay ring electrode. Finally, electrospinng was implemented on the device that was improved depending on the optimum electric field distribution, and the high aligned electrospun nanofibers were collected, which proved the simulation was right.
出处
《东华大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第3期271-274,共4页
Journal of Donghua University(Natural Science)
基金
南通市应用研究计划资助项目(BK2011038)
关键词
静电纺丝
电场分布
旋转收集法
纤维取向
electrospinning
distribution of electric field
rotating collection
fiber alignment
