While electrospinning is an effective method for fabricating nanofibers with good application prospects,controlling the length of stable section of electrospinning jet is critical and remains challenging.In the paper,...While electrospinning is an effective method for fabricating nanofibers with good application prospects,controlling the length of stable section of electrospinning jet is critical and remains challenging.In the paper,the effects of electrospinning parameters on the length of stable section have been investigated experimentally using polyacrylonitrile(PAN).The results based on single factor experiments and orthogonal experiments showed that the stable⁃jet length increased with the increase of solution concentration,receiving distance,voltage and solution flow rate,and decreased with the enhanced concentration of salt which was commonly utilized as additive to facilitate the spinning.Furthermore,experimental results based on polyethylene oxide(PEO)and polyvinyl alcohol(PVA)showed that the length of stable section changed with increasing salt concentration,and due to the parametric interaction,the change was distinct under different driving voltages or solution concentration conditions.展开更多
基金National Natural Science Foundation of China(Nos.51773037,51973027,51803023,and 61771123)Fundamental Research Funds for the Central Universities(Nos.2232020D⁃15,2232020A⁃08,2232020G⁃01,2232020D⁃14,and 2232018A3⁃11)+3 种基金Changjiang Youth Scholars Program of ChinaInnovation Program of Shanghai Municipal Education Commission,ChinaShanghai Sailing Program,China(No.18YF 1400400)China Postdoctoral Science Foundation(No.2018M640317)。
文摘While electrospinning is an effective method for fabricating nanofibers with good application prospects,controlling the length of stable section of electrospinning jet is critical and remains challenging.In the paper,the effects of electrospinning parameters on the length of stable section have been investigated experimentally using polyacrylonitrile(PAN).The results based on single factor experiments and orthogonal experiments showed that the stable⁃jet length increased with the increase of solution concentration,receiving distance,voltage and solution flow rate,and decreased with the enhanced concentration of salt which was commonly utilized as additive to facilitate the spinning.Furthermore,experimental results based on polyethylene oxide(PEO)and polyvinyl alcohol(PVA)showed that the length of stable section changed with increasing salt concentration,and due to the parametric interaction,the change was distinct under different driving voltages or solution concentration conditions.
