间位芳纶纳米纤维的静电纺工艺  

Electrospinning process of PMIA nanofiber membrane

作　　者：康卫民[1,2] 刘晓红[1] 马晓敏[1] 赵卉卉[1] 

机构地区：[1]天津工业大学纺织学院,天津300387 [2]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,天津300387

出　　处：《天津工业大学学报》2016年第1期6-11,16,共7页Journal of Tiangong University

基　　金：国家自然科学基金资助项目(51102178);天津市应用基础与前沿技术研究计划(13JCZDJC32500)

摘　　要：以间位型芳纶/N,N-二甲基乙酰胺(PMIA/DMAC)为纺丝液,采用静电纺丝技术成功制备出PMIA纳米纤维膜,采用单因素变量法探讨了电纺工艺对PMIA纳米纤维形态的影响,并通过SEM图像及直径分布获得了电纺PMIA的较佳工艺参数为:纺丝液质量分数14%,电压25 kV,进液速率0.2 mL/h,接收距离16 cm.采用红外、TG测试手段表征了PMIA纳米纤维膜的结构和热稳定性能.结果表明:PMIA纳米纤维膜的玻璃化转变和热分解温度分别为273℃和431℃,具有着良好的热稳定性能.The electrospinning factors of influencing morphologies of PMIA nanofiber were discussed using single factor variable method, and finally the optimum electrospun crafts for PMIA nanofiber were obtained according its SEM images and diameter distribution. The results showed that the optimum electrospun crafts were: spinning concentration was 14%, voltage was 25 kV, spinning speed was 0.2 mL/h, and reception distance was 16 cm.FT-IR, TG and DSC were used to characterize the structure and thermal stability of PMIA nanofiber membrane.The results showed that the maximum thermal decomposition and glass transition temperature of the PMIA nanofiber membrane was 431 ℃ and 273 ℃ respectively, which indicates that the PMIA nanofiber membrane had a high heat resistance temperature.

关 键 词：静电纺 间位型芳纶(PMIA) 耐高温 纳米纤维 

分 类 号：TS102.64[轻工技术与工程—纺织工程] TS104.76[轻工技术与工程—纺织科学与工程]