磁场辅助静电纺丝PVP有序纳米纤维的制备  

Magnetic-field-assisted electrospinning process of aligned PVP nanofibers

作　　者：高艳芳[1,2] 韩瑞[1,2] 林也平[1,2] 张梦赟[1,2] 苗瑞珍 刘亚青[1,2] 

机构地区：[1]中北大学山西省高分子复合材料工程技术研究中心,山西太原030051 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《合成纤维工业》2014年第2期14-17,共4页China Synthetic Fiber Industry

基　　金：高等学校博士学科点专项科研基金(20131420120004)

摘　　要：在传统静电纺丝的实验装置中引入一对平行排列的永磁铁,制备聚乙烯吡咯烷酮(PVP)有序纳米纤维;研究了溶液浓度、电压、接收距离、LiCl添加量、磁场强度和磁铁间距对PVP纤维有序度的影响。结果表明:随PVP溶液浓度、电压、接收距离和磁铁间距的增大,PVP纤维有序度先增大后减小;随LiCl添加量或磁场强度增大,纤维有序度增大;在PVP溶液质量分数为12%、电压为15 kV、接收距离为15 cm、LiCl添加质量分数为0.6%、磁场强度为0.3 T以及磁铁间距为2.5 cm时,PVP纤维的有序度最高。A pair of parallel permanent magnets were applied into the traditional experimental electrospinning unit for alignedpolyvinylpyrrolidone （PVP） nano fiber.The effects of PVP solution concentration,voltage,collection distance,LiCl addition,magnetic field intensity and magnet spacing on the fiber alignment were studied.The results showed that the PVP fiber alignmentwas increased and then decreased while increasing the PVP solution concentration,voltage,collection distance and magnet spac-ing; the fiber alignment was increased with the increase of LiCl amount or magnetic field intensity; the PVP fiber alignment wasmaximized as the mass fraction of PVP solution was 12％,the voltage 15 kV,the collection distance 15 cm,the LiCl mass frac-tion 0.6％,magnetic field intensity 0.3 T and magnet spacing 2.5 cm.

关 键 词：聚乙烯吡咯烷酮纤维 纳米 静电纺丝 有序 磁场 

分 类 号：TQ340.64[化学工程—化纤工业]