非溶剂诱导相分离制备三维蓬松静电纺材料  

Preparation of electrospun nonwoven material with three-dimensional fluffy structure by non-solvent induced phase separation

作　　者：陈鑫 王玉萍 柯勤飞[1] 黄晨[1] 金平良 CHEN Xin;WANG Yuping;KE Qinfei;HUANG Chen;JIN Pingliang(Key Laboratory of Textile Science&Technology of Ministry of Education,College of Textiles,Donghua University,Shanghai 201620,China;Shanghai Textile Architectural Design Research Institute Co.,Ltd.,Shanghai 200060,China;Zhejiang Wangjin Nonwovens Co.,Ltd.,Changxing 313100,Zhejiang,China)

机构地区：[1]东华大学纺织学院纺织面料技术教育部重点实验室,上海201620 [2]上海纺织建筑设计研究院有限公司,上海200060 [3]浙江王金非织造布有限公司,浙江长兴313100

出　　处：《上海纺织科技》2021年第2期10-14,37,共6页Shanghai Textile Science & Technology

基　　金：中央高校基本科研业务费专项资金资助(2232019G-01);东华大学博士研究生创新基金资助项目(18D310124)。

摘　　要：静电纺丝过程中,在纤维接收区域添加非溶剂物质,制备具有三维蓬松结构的聚丙烯腈(PAN)静电纺非织造材料。通过构建“非溶剂-溶剂-聚合物”的三元体系,绘制三元相图,研究三维蓬松结构的成型机理。结果表明:非溶剂物质(在纤维接收区域施加水雾含量为5.25mL/m^(3))加速了PAN相分离成纤的过程,大量静电纺纳米纤维堆积形成三维蓬松结构。在长时间的过滤负载试验中,三维蓬松结构的非织造材料的品质因素始终优于常规片状结构。In the process of electrospinning,a non-solvent substance is added to the fiber receiving area to prepare a polyacrylonitrile(PAN)electrospun nonwoven material with a three-dimensional fluffy structure.By constructing a“non-solvent-solvent-polymer”ternary system,a ternary phase diagram is drawn,and the forming mechanism of the three-dimensional fluffy structure is studied.The results show that non-solvent substances(applying a water mist concentration of 5.25 mL/m^(3)in the receiving area)can accelerate the process of phase separation of PAN,and a large number of electrospun nanofibers are deposited to form a three-dimensional fluffy structure.In the long-term filtration load test,the quality with the three-dimensional fluffy structure is always better than that with the conventional sheet structure.

关 键 词：非织造织物 静电纺丝 聚丙烯非溶剂 相分离 三维蓬松结构 

分 类 号：TQ342.3[化学工程—化纤工业]