高黏度聚乳酸(PLA)熔体微分离心静电纺丝
|
摘要
离心纺丝已成为制备超细纤维的有效途径,将离心纺丝和静电纺丝结合起来的离心静电纺丝,纺丝效率高、纤维细度低。但是目前离心静电纺丝相关的研究十分有限,且主要涉及溶液离心静电纺丝。为了解决这一问题,本文设计了一种基于熔体微分的熔体离心静电纺丝装置,选取聚乳酸(PLA)作为研究对象,探究了挤出机转速和流量的关系,得出挤出机转速在20r/min、流量为1.6089g/min时纺丝效果最佳。研究了离心盘转速、纺丝电压等因素对纤维的影响,得出增加离心盘转速可大幅细化纤维直径,离心盘转速提高1倍,纤维直径减小77.26%;纺丝电压的加入不仅可以细化纤维直径,而且可以提高纤维的结晶度。结果表明:熔体微分离心静电纺丝可以高效制备PLA超细纤维,并且通过改变实验参数可以控制纤维特征,为离心静电纺丝产业化提供实验依据。
Centrifugal spinning has become an efficient way to prepare superfine fibers. It combines centrifugal spinning with electrospinning which has advantages of high efficiency and small fiber diameter. However,the current research on centrifugal electrospinning is very limited. In order to solve this problem, a self-designed melt differential centrifugal electrospinning device was used to prepare PLA superfine fibers. Moreover the relationship between extruder speed and flow rate was investigated. It was found that when the extruder speed was 20 r/min and the flow rate was 1.6089 g/min, the spinning effect was the best. The effects of centrifugal disk rotation speed and spinning voltage on the fiber were studied.It was found that increasing the rotation speed of the centrifugal disk could refine the fiber diameter greatly. When the centrifugal disk rotation speed was increased by 1 times, the fiber diameter was reduced by 77.26%. The addition of the spinning voltage not only refined the fiber diameter, but also increased the crystallinity of the fiber. The results showed that the PLA superfine fibers could be prepared by melt differential centrifugal electrospinning efficiently, and the fibers characteristics could be controlled by changing the experimental parameters. This study provided an experimental basis for the industrialization of centrifugal electrospinning.
Centrifugal spinning has become an efficient way to prepare superfine fibers. It combines centrifugal spinning with electrospinning which has advantages of high efficiency and small fiber diameter. However,the current research on centrifugal electrospinning is very limited. In order to solve this problem, a self-designed melt differential centrifugal electrospinning device was used to prepare PLA superfine fibers. Moreover the relationship between extruder speed and flow rate was investigated. It was found that when the extruder speed was 20 r/min and the flow rate was 1.6089 g/min, the spinning effect was the best. The effects of centrifugal disk rotation speed and spinning voltage on the fiber were studied.It was found that increasing the rotation speed of the centrifugal disk could refine the fiber diameter greatly. When the centrifugal disk rotation speed was increased by 1 times, the fiber diameter was reduced by 77.26%. The addition of the spinning voltage not only refined the fiber diameter, but also increased the crystallinity of the fiber. The results showed that the PLA superfine fibers could be prepared by melt differential centrifugal electrospinning efficiently, and the fibers characteristics could be controlled by changing the experimental parameters. This study provided an experimental basis for the industrialization of centrifugal electrospinning.
引文
[1]刘太奇,许远秦,操彬彬,等.熔体静电纺丝及其装置的研究进展[J].新技术新工艺,2009(12):93-96.LIU Taiqi,XU Yuanqin,CAO Binbin,et al.Research development on melt-electrospinning and its equipments[J].New Technology and New Process,2009(12):93-96.
[2]吕梦青,曹鼎,石艳,等.静电纺丝PET/PVA复合纳米纤维膜的制备及性能[J].化工进展,2012,31(11):2531-2534.LüMengqing,CAO Ding,SHI Yan,et al.Preparation and modification of PET/PVA composite nanofiber membranes via electrospinning[J].Chemical Industry and Engineering Progress,2012,31(11):2531-2534.
[3]刘术亮,黄渊源,韩玉梅,等.离心静电纺丝法制备有序、交叉以及绞线结构的荧光纳米纤维[J].青岛大学学报(自然科学版),2013,26(1):44-49.LIU Shuliang,HUANG Yuanyuan,HAN Yumei,et al.Fabrication of fluorescent nanofibers of aligned arrays,two-layer grid-patterns and nanoropes via electrospinning[J].Journal of Qingdao University(Natural Science Edition),2013,26(1):44-49.
[4]李岩,黄争鸣.聚合物的静电纺丝[J].高分子通报,2006(5):12-19.LI Yan,HUANG Zhengming.Electrospinning of polymers[J].Chinese Polymer Bulletin,2006(5):12-19.
[5]朱同贺,陈思浩,楼建中,等.基于静电纺丝技术的PLGA载药纳米纤维膜的制备工艺[J].化工进展,2015,34(3):790-795.ZHU Tonghe,CHEN Sihao,LOU Jianzhong,et al.Preparation of drugloaded polylactic acid-based fibers membranesbased on electrospinning technology[J].Chemical Industry and Engineering Progress,2015,4(3):790-795.
[6]郝明凤,刘勇,邓荣坚,等.典型材料的熔体静电纺丝研究[J].工程塑料应用,2010,38(3):24-27.HAO Mingfeng,LIU Yong,DENG Rongjian,et al.Researchon typical materials melt electrospinning[J].Engineering Plastics Application,2010,38(3):24-27.
[7]胡永利,张淑平.基于海藻酸钠抗菌材料制备及应用的研究进展[J].化工进展,2016,35(4):1126-1131.HU Yongli,ZHANG Shuping.Progress in preparation and application of sodium alginate antibacterial materials[J].Chemical Industry and Engineering Progress,2016,35(4):1126-1131.
[8]杨卫民,李好义,吴卫逢,等.熔体静电纺丝技术研究进展[J].北京化工大学学报(自然科学版),2014,41(4):1-13.YANG Weimin,LI Haoyi,WU Weifeng,et al.Research advances in melt electrospinning[J].Journal of Beijing University of Chemical Technology(Natural Science Edition),2014,41(4):1-13.
[9]宋天丹,李秀红,陈志远,等.离心纺丝的发展现状及前景[J].纺织导报,2014(1):61-63.SONG Tiandan,LI Xiuhong,CHEN Zhiyuan,et al.Development status-quo and prospect of centrifugal spinning technology[J].China Textile Leader,2014(1):61-63.
[10]MCEACHIN Z,LOZANO K.Production and characterization of polycaprolactone nanofibers via forcespinning(TM)technology[J].Journal of Applied Polymer Science,2012,126(2):473-479.
[11]CHANG W M,WANG C C,CHEN C Y.The combination of electrospinning and forcespinning:effects on a viscoelastic jet and a single nanofiber[J].Chemical Engineering Journal,2014,244(1):540-551.
[12]SARKAR K,GOMEZ C,ZAMBRANO S,et al.Electrospinning to forcespinning[J].Materials Today,2010,13(11):12-14.
[13]李守猛,伍先安,杨卫民,等.聚合物离心纺丝模式的研究现状[J].塑料科技,2017,45(8):107-111.LI Shoumeng,WU Xianan,YANG Weimin,et al.Research status of polymer centrifugal spinning mode[J].Plastics Science and Technology,2017,45(8):107-111.
[14]KANCHEVA M,TONCHEVA A,MANLOVA N,et al.Advanced centrifugal electrospinning setup[J].Materials Letters,2014,136(1):150-152.
[15]KHAMFOROUSH M,ASGARI T,HATAMI T,et al.The influences of collector diameter,spinneret rotational speed,voltage,and polymer concentration on the degree of nanofibers alignment generated by electrocentrifugal spinning method:modeling and optimization by response surface methodology[J].Korean Journal of Chemical Engineering,2014,31(9):1695-1706.
[16]LIAO C C,WANG C C,CHEN C Y.Stretching-induced crystallinity and orientation of polylactic acid nanofibers with improved mechanical properties using an electrically charged rotating viscoelastic jet[J].Polymer,2011,52(2):4303-4318.
[17]LI Mengmeng,LONG Yunze,YANG Dayong,et al.Fabrication of one dimensional superfine polymer fibers by double-spinning[J].Journal of Materials Chemistry,2011,21(35):13159-13162.
[18]EDMONDSOND,COOPERA,JANA S,et al.Centrifugal electrospinning of highly aligned polymer nanofibers over a large area[J].Journal of Materials Chemistry,2012,22(35):18646-18652.
[2]吕梦青,曹鼎,石艳,等.静电纺丝PET/PVA复合纳米纤维膜的制备及性能[J].化工进展,2012,31(11):2531-2534.LüMengqing,CAO Ding,SHI Yan,et al.Preparation and modification of PET/PVA composite nanofiber membranes via electrospinning[J].Chemical Industry and Engineering Progress,2012,31(11):2531-2534.
[3]刘术亮,黄渊源,韩玉梅,等.离心静电纺丝法制备有序、交叉以及绞线结构的荧光纳米纤维[J].青岛大学学报(自然科学版),2013,26(1):44-49.LIU Shuliang,HUANG Yuanyuan,HAN Yumei,et al.Fabrication of fluorescent nanofibers of aligned arrays,two-layer grid-patterns and nanoropes via electrospinning[J].Journal of Qingdao University(Natural Science Edition),2013,26(1):44-49.
[4]李岩,黄争鸣.聚合物的静电纺丝[J].高分子通报,2006(5):12-19.LI Yan,HUANG Zhengming.Electrospinning of polymers[J].Chinese Polymer Bulletin,2006(5):12-19.
[5]朱同贺,陈思浩,楼建中,等.基于静电纺丝技术的PLGA载药纳米纤维膜的制备工艺[J].化工进展,2015,34(3):790-795.ZHU Tonghe,CHEN Sihao,LOU Jianzhong,et al.Preparation of drugloaded polylactic acid-based fibers membranesbased on electrospinning technology[J].Chemical Industry and Engineering Progress,2015,4(3):790-795.
[6]郝明凤,刘勇,邓荣坚,等.典型材料的熔体静电纺丝研究[J].工程塑料应用,2010,38(3):24-27.HAO Mingfeng,LIU Yong,DENG Rongjian,et al.Researchon typical materials melt electrospinning[J].Engineering Plastics Application,2010,38(3):24-27.
[7]胡永利,张淑平.基于海藻酸钠抗菌材料制备及应用的研究进展[J].化工进展,2016,35(4):1126-1131.HU Yongli,ZHANG Shuping.Progress in preparation and application of sodium alginate antibacterial materials[J].Chemical Industry and Engineering Progress,2016,35(4):1126-1131.
[8]杨卫民,李好义,吴卫逢,等.熔体静电纺丝技术研究进展[J].北京化工大学学报(自然科学版),2014,41(4):1-13.YANG Weimin,LI Haoyi,WU Weifeng,et al.Research advances in melt electrospinning[J].Journal of Beijing University of Chemical Technology(Natural Science Edition),2014,41(4):1-13.
[9]宋天丹,李秀红,陈志远,等.离心纺丝的发展现状及前景[J].纺织导报,2014(1):61-63.SONG Tiandan,LI Xiuhong,CHEN Zhiyuan,et al.Development status-quo and prospect of centrifugal spinning technology[J].China Textile Leader,2014(1):61-63.
[10]MCEACHIN Z,LOZANO K.Production and characterization of polycaprolactone nanofibers via forcespinning(TM)technology[J].Journal of Applied Polymer Science,2012,126(2):473-479.
[11]CHANG W M,WANG C C,CHEN C Y.The combination of electrospinning and forcespinning:effects on a viscoelastic jet and a single nanofiber[J].Chemical Engineering Journal,2014,244(1):540-551.
[12]SARKAR K,GOMEZ C,ZAMBRANO S,et al.Electrospinning to forcespinning[J].Materials Today,2010,13(11):12-14.
[13]李守猛,伍先安,杨卫民,等.聚合物离心纺丝模式的研究现状[J].塑料科技,2017,45(8):107-111.LI Shoumeng,WU Xianan,YANG Weimin,et al.Research status of polymer centrifugal spinning mode[J].Plastics Science and Technology,2017,45(8):107-111.
[14]KANCHEVA M,TONCHEVA A,MANLOVA N,et al.Advanced centrifugal electrospinning setup[J].Materials Letters,2014,136(1):150-152.
[15]KHAMFOROUSH M,ASGARI T,HATAMI T,et al.The influences of collector diameter,spinneret rotational speed,voltage,and polymer concentration on the degree of nanofibers alignment generated by electrocentrifugal spinning method:modeling and optimization by response surface methodology[J].Korean Journal of Chemical Engineering,2014,31(9):1695-1706.
[16]LIAO C C,WANG C C,CHEN C Y.Stretching-induced crystallinity and orientation of polylactic acid nanofibers with improved mechanical properties using an electrically charged rotating viscoelastic jet[J].Polymer,2011,52(2):4303-4318.
[17]LI Mengmeng,LONG Yunze,YANG Dayong,et al.Fabrication of one dimensional superfine polymer fibers by double-spinning[J].Journal of Materials Chemistry,2011,21(35):13159-13162.
[18]EDMONDSOND,COOPERA,JANA S,et al.Centrifugal electrospinning of highly aligned polymer nanofibers over a large area[J].Journal of Materials Chemistry,2012,22(35):18646-18652.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |