静电纺聚醚砜纳米纤维膜的制备及性能研究  

Preparation and property of electrospun polyether sulfone nanofiber membrane

作　　者：任杰[1,2] 汪滨[1,2] 王娇娜[1,2] 李秀艳[1,2] 李从举[1,2] 

机构地区：[1]北京服装学院材料科学与工程学院,北京100029 [2]北京市服装材料研究开发与评价重点实验室,北京100029

出　　处：《化工新型材料》2017年第6期247-249,252,共4页New Chemical Materials

基　　金：国家自然科学基金项目(51503005;21274006);北京市科技北京百名领军人才工程(Z16111000490000);北京市百千万人才工程(110403000402);北京市属高等学校高层次人才引进与培养计划项目-北京市长城学者培育计划(CIT&TCD20150306);北京市属高校创新能力提升计划项目(TJSHG201310012021);北京市教育委员会科技计划一般项目(SQKM201710012004);北京服装学院创新团队与优秀人才选拔与培养计划项目(2014AL-68);北京服装学院校内重点项目(2016A-03);北京市服装材料研究开发与评价重点实验室开放课题(2015ZK-02)

摘　　要：配制不同浓度的聚醚砜(PES)纺丝液,在不同纺丝温度和进液速度下,采用静电纺丝技术制备PES纳米纤维膜,并通过扫描电子显微镜观察膜表面的微观形貌,探究纺丝液浓度、进液速度和纺丝温度等条件对纤维的形貌、直径和孔径分布等的影响。结果表明:当纺丝液浓度为28%(质量分数),推进速度为1mL/h,纺丝温度为45℃时,纺丝效果最佳。分别采用电子万能试验机和泡压法滤膜孔径分析仪对优化条件下制得的PES纳米纤维膜的力学性能、通孔孔径及孔径分布进行测试,发现该条件下所得PES纳米纤维膜的弹性模量为33.4MPa,断裂伸长率为38.63%,拉伸屈服应力为3.47MPa;纤维平均直径为0.723μm,平均孔径为3.5689μm,最可几孔径为3.5655μm。静电纺PES纳米纤维膜有望作为高精度滤膜材料使用。Polyether sulfone（PES）nanofiber membrane was prepared by electrospinning PES spinning solution of different concentrations in the different inlet velocity and spinning temperature.The concentration of spinning solution,inlet velocity and spinning temperature,etc.had an impact on the morphology,diameter and pore size distribution of fiber,which was observed by scanning electron microscopy（SEM）.The optimum PES nanofiber membrane was prepared by electrospinning 28wt% spinning solution with 1mL/h and 45℃.Then the elastic modulus,elongation at break and yield stress of membrane were 33.4MPa,38.63% and 3.47 MPa respectively,which were tested by electro-mechanical universal testing machine.And the through-hole pore and distribution of pore size was tested by bubble pressure method filter membrane pore size analyzer.Fiber average diameter was 0.723μm.Average pore size was 3.5689μm.The most probable aperture was3.5655μm.Thus,the membrane was expected to be used as high-precision filtration membrane.

关 键 词：聚醚砜 静电纺丝 纳米纤维膜 

分 类 号：TQ340.64[化学工程—化纤工业]