李旭清,周虹,姚永毅,林义,陈竹平,吴大诚,伍玲,唐剑,陈春
LI Xu-qing1,ZHOU Hong2,YAO Yong-yi1,LIN Yi1,CHEN Zhu-ping2,WU Da-cheng1,WU Ling2,TANG Jian2,CHEN Chun2(1.Textile Institute

• 1:四川大学纺织研究学院
• 2:四川省原子核应用技术研究所
• 3:四川大学纺织研究学院
• 4:四川大学纺织研究学院

摘要(Abstract)：

采用75%四氢呋喃(THF)和25%N,N-二甲基甲酰胺(DMF)的混合溶液作溶剂,通过气流-静电纺丝法制备了苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)超细纤维。利用扫描电镜(SEM),研究了溶液浓度、电压、接收距离(喷丝孔到接收板的距离)、喷丝孔内径对静电纺纤维的直径和形貌的影响。研究发现:溶液浓度对电纺纤维的直径和形貌有非常重要的影响,当溶液浓度由10%增加到18%时,电纺纤维平均直径随之成线性增加;当电压由23.8kV增加到33.8kV时,纤维平均直径先减小后增加。最佳工艺条件为:溶液质量分数为14%,电压为28.8kV,接收距离为20cm,喷丝孔内径为0.27mm,所得SBS电纺超细纤维平均直径为429nm。
The ultrafine fibers of styrene-butadiene-styrene copolymer(SBS)were prepared by gas-jet/electrospinning of its solutions in a mixture of 75 % tetrahydrofuran(THF)and 25 %N,N-dimethylformamide(DMF).The influence of the concentration,the applied voltage,the tip-collector distance(TCD)and the inner diameter of needle on the diameter and morphology of electrospun fibers was investigated by scanning electron microscopy(SEM).It was found that the concentration played a very important role in the diameter and morphology.The average diameter of the electrospun fibers had a linear increase as the concentration increased from 10 % to 18 %.The experimental results also showed that the diameter of electrospun fibers was decreased firstly and then increase with increasing the applied voltage from 23.8 kV to 33.8 kV.These SBS ultrafibers with average diameter of about 429 nm could be prepared by this gas-jet /electrospinning at the following optimal process parameters:the concentration of SBS was 14 %,the applied voltage 28.8 kV,the TCD 20 cm,the inner diameter of needle 0.27 mm.

关键词(KeyWords)： 静电纺丝;超细纤维;SBS;气喷
electrospinning,ultrafine fibers,SBS,gas-jet

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(项目号:50473050)

作者(Author): 李旭清,周虹,姚永毅,林义,陈竹平,吴大诚,伍玲,唐剑,陈春
LI Xu-qing1,ZHOU Hong2,YAO Yong-yi1,LIN Yi1,CHEN Zhu-ping2,WU Da-cheng1,WU Ling2,TANG Jian2,CHEN Chun2(1.Textile Institute

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