Order deposition of poly(ε-caprolactone) fibers by directing writing melt electrospinning

doi:10.16085/j.issn.1000-6613.2018-0255

Chemical Industry and Engineering Progress ›› 2018, Vol. 37 ›› Issue (11): 4358-4363.DOI: 10.16085/j.issn.1000-6613.2018-0255

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Order deposition of poly(ε-caprolactone) fibers by directing writing melt electrospinning

CHENG Lisheng^1,2, LI Yi¹, LEI Wenlong¹, YAN Hua¹, YANG Weimin¹, LI Haoyi¹

1 Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China;
2 College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Received:2018-01-29 Revised:2018-06-25 Online:2018-11-05 Published:2018-11-05

熔体直写电纺聚己内酯纤维有序沉积工艺

程礼盛^1,2, 李轶¹, 雷文龙¹, 阎华¹, 杨卫民¹, 李好义¹

1 北京化工大学生物医用材料北京实验室, 北京 100029;
2 北京化工大学机电工程学院, 北京 100029

通讯作者: 阎华,高级工程师,硕士生导师,研究方向为高分子材料加工成型与先进制造。E-mail:yanhua@mail.buct.edu.cn。
作者简介:程礼盛(1982-),男,副教授,硕士生导师,研究方向为高分子材料加工成型与先进制造。E-mail:chengls@mail.buct.edu.cn。
基金资助:
国家重点研发计划（2016YFB0302000）、北京市自然科学基金重点项目（2141002）及国家自然科学基金青年基金（51603006、51603009）项目。

Abstract

Abstract: At present, most polymer fibers prepared by polymer melt electrospinning technology are in the form of unordered nonwoven fabric, which restricts the application of electrospinning technology in the fields of ordered structure, such as tissue engineering scaffolds and robots. Combining melt electrospinning with 3D-motion platform, melt electrospinning writing of poly(ε-caprolactone) was used to fabricate aligned fibers via the self-designed melt electrospinning writing device. The influence of nozzle moving speed, collecting distance and voltage on the morphology of fiber deposition was investigated. The results showed that the fiber diameter was reduced when increasing the moving speed of nozzle, collecting distance and voltage. The change in the collecting distance had the most obvious effect on the fiber diameter, and the deposition of fibers became disordered, if the collecting distance is too large. The ordered deposition of fibers can be achieved by matching the jet speed with the moving speed of the nozzle. Increasing the collecting distance and spinning voltage would induce the phenomenon of jet whipping, in which case it was needed to speed up the moving of nozzle to achieve ordered deposition of fibers.

Key words: tissue engineering, melt electrospinning writing, poly (ε-caprolactone), additive manufacturing, ordered deposition, speed matching

摘要： 目前聚合物熔体电纺技术制备的纤维大多以杂乱无序的无纺布形式存在，限制了电纺技术在组织工程支架以及机器人等需要有序结构领域的应用。本文将熔体电纺技术与三维运动平台相结合，采用自主设计的熔体电纺可控成型实验装置，对聚己内酯（PCL）进行熔体直写静电纺丝，获得了有序纤维。研究了喷头移动速度、接收距离和纺丝电压对熔体直写电纺纤维沉积形貌的影响。结果表明，纤维直径随着喷头移速、接收距离和纺丝电压的增大而减小，其中接收距离的改变对直径的影响最为显著；接收距离的增大虽然有利于纤维的细化，但是距离过大会使纤维沉积的有序性变差；当射流下落速度与喷头移动速度相匹配时，射流才能实现有序沉积；增大接收距离和纺丝电压会引起射流鞭动，需要相应地增大喷头移动速度才能实现有序沉积。

关键词: 组织工程学, 熔体直写, 聚己内酯, 增材制造, 有序沉积, 速度匹配

CLC Number:

TS155.6

CHENG Lisheng, LI Yi, LEI Wenlong, YAN Hua, YANG Weimin, LI Haoyi. Order deposition of poly(ε-caprolactone) fibers by directing writing melt electrospinning[J]. Chemical Industry and Engineering Progress, 2018, 37(11): 4358-4363.

程礼盛, 李轶, 雷文龙, 阎华, 杨卫民, 李好义. 熔体直写电纺聚己内酯纤维有序沉积工艺[J]. 化工进展, 2018, 37(11): 4358-4363.

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Order deposition of poly(ε-caprolactone) fibers by directing writing melt electrospinning

熔体直写电纺聚己内酯纤维有序沉积工艺

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