多喷头高压静电纺丝制备纤维毯的工艺及性能研究  

Preparation Process of Fiber Web by Multi-nozzle High-voltage Electrospinning and Its Properties

作　　者：顾偲雯 庄秀娜 王加安 句爱松 王安平 庄钰 GU Si-wen;ZHUANG Xiu-na;WANG Jia-an;JU Ai-song;WANG An-ping;ZHUANG Yu(School of Photoelectric Engineering,Changzhou Institute of Technology,Changzhou Jiangsu 213032,China;Lanshan District Government Service Center,Rizhao Shandong 276807,China;Sunlour Pigment Co.,Ltd.,Taizhou Jiangsu 225431,China;School of Chemical Engineering,Dalian University of Technology,Dalian Liaoning 116024,China)

机构地区：[1]常州工学院光电工程学院,江苏常州213032 [2]岚山区政务服务中心,山东日照276807 [3]双乐颜料股份有限公司,江苏泰州225431 [4]大连理工大学化工学院,辽宁大连116024

出　　处：《当代化工》2022年第1期1-7,12,共8页Contemporary Chemical Industry

基　　金：国家自然科学基金面上项目(项目编号:22178045);江苏高校文化创意协同创新中心资助课题(项目编号:XYN1911);江苏省博士后科研资助计划(项目编号:2021K571C);江苏省高等学校自然科学研究面上项目(项目编号:20KJB510041)。

摘　　要：多喷头高压静电纺丝过程中,喷头间电场相互干扰,呈现电场矢量强离散性和耦合性,使得所纺纤维毯性能和产量不稳定,为此以稳定电场和结构电场矢量为突破口进行纤维毯的制备工艺及性能研究。利用ANSYS有限元分析软件模拟多喷头工作电场,分析关键操作参数对电场分布的影响,通过参数优化达到电场可控。基于此加装辅助装置构建电场管控策略以保证稳定连续生产。最后通过实验分析纤维毯性能和产量。结果表明:优化电场后纺丝射流稳定,方向基本一致,纤维路径呈螺旋交叠状,符合"不稳定造成弯曲"规律。纤维毯成膜良好,断面厚度均匀,厚度误差为5%。纺丝速率为50 mm·min^(-1),可达年产6万m^(2)。研究结果证明了所提方法能够保证纤维毯的"质"和"量"的双重性。During multi-nozzle electrospinning, the strong interaction and discreteness of electric field vectors was shown because adjacent electric fields interfere with each other, giving uncertain performance and yield of the fiber web. For this reason, the stable electric field and the decoupled electric field vector were used as breakthrough points to study the process and properties of fiber web by multi-nozzle high-voltage electrospinning. The simulation for the electric field was given by ANSYS finite element analysis software. The key operating parameters were extracted and their influences on electric field distribution were analyzed, having good access to realize the parameter optimization and then control the entire electric field. In light of this, the multi-nozzle electrospinning was equipped with the auxiliary devices to develop the manipulation strategy so as to ensure stable and continuous production. Finally, the experimental analysis was employed to reveal the performance and yield of the fiber web. Results showed that the spinning fiber path was spiral and overlapping, which conformed to the law of "instability caused by bending". It also reflected good web formation, where the section thickness was uniform and the error of thickness was 5%. The spinning speed was 50 mm·min^(-1), up to 60 000 m^(2)·a^(-1). These prove that the method is suitable for ensuring the duality of "quality" and "quantity" of the fiber web, laying a foundation for accelerating the industrialization.

关 键 词：静电纺丝 多喷头 电场 有限元分析 

分 类 号：TQ340.64[化学工程—化纤工业]