狭缝式熔体微分电纺工艺参数对射流间距的影响
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摘要
采用自主设计的狭缝式熔体微分静电纺丝装置对聚丙烯(PP)材料进行熔体静电纺丝,研究了纺丝电压、纺丝距离和纺丝温度3个纺丝参数对射流间距的影响。结果表明,射流间距随纺丝电压的升高而减小;射流间距随纺丝距离的减小而增大,但当纺丝距离低于80mm并继续减小时,射流间距保持不变;射流间距随纺丝温度的升高而减小,当纺丝温度达到230℃并继续升高时,射流间距保持不变;当纺丝电压为60kV,纺丝距离为100mm,纺丝温度为245℃时,射流间距最小,可达3.3mm。
Polypropylene(PP)fibers were electrospun by a self-made slit-surface melt differential electrospinning device,and effects of process parameters such as spinning voltage,spinning distance and spinning temperature on the interjet distance were investigated.The results indicated that the interjet distance decreased with an increase in spinning voltage but increased with a decrease in spinning distance.After the spinning distance was lower than 8 cm,the interjet distance was kept stable with a variation of spinning distance.The interjet distance also decreased with an increase in spinning temperature.However,the interjet distance was kept stable after the spinning temperature was higher than 230℃.The interjet distance achieved the minimum value of3.3 mm at a spinning voltage of 60 kV,a spinning distance of 100 mm and a spinning temperature of 245 ℃.
Polypropylene(PP)fibers were electrospun by a self-made slit-surface melt differential electrospinning device,and effects of process parameters such as spinning voltage,spinning distance and spinning temperature on the interjet distance were investigated.The results indicated that the interjet distance decreased with an increase in spinning voltage but increased with a decrease in spinning distance.After the spinning distance was lower than 8 cm,the interjet distance was kept stable with a variation of spinning distance.The interjet distance also decreased with an increase in spinning temperature.However,the interjet distance was kept stable after the spinning temperature was higher than 230℃.The interjet distance achieved the minimum value of3.3 mm at a spinning voltage of 60 kV,a spinning distance of 100 mm and a spinning temperature of 245 ℃.
引文
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[2]KAUR S,RANA D,MATSUURA T,et al.Preparation and Characterization of Surface Modified Electrospun Membranes for Higher Filtration Flux[J].Journal of Membrane Science,2012,390/391:235-242.
[3]DING B,WANG M,WANG X F,et al.Electrospun Nanomaterials for Ultrasensitive Sensors[J].Materials Today,2010,13(11):16-27.
[4]DALTON P D,VAQUETTE C,FARRUGIA B L,et al.Electrospinning and Additive Manufacturing:Converging Technologies[J].Biomaterials Science,2013,1(2):171-185.
[5]SIMM W,GOSLING C,BONART R,et al.Fibre Fleece of Electrostatically Spun Fibres and Methods of Making Same:US4143196[P].1979-03-06.
[6]SHIMADA N,TSUTSUMI H,NAKANE K,et al.Poly(ethylene-co-vinyl alcohol)and Nylon 6/12 Nanofibers Produced by Melt Electrospinning System Equipped with a Line-like Laser Beam Melting Device[J].Journal of applied polymer science,2010,116(5):2 998-3 004.
[7]FANG J,ZHANG L,SUTTON D,et al.Needleless Melt-electrospinning of Polypropylene Nanofibres[J].Journal of nanomaterials,2012,2012:16-24.
[8]Komrek M,Martionv L.Design and Evaluation of Meltelectrospinning Electrodes[C]//Proceeding of 2nd Nanocon International Conference.Olomouc:Czech Republic,2010:12-14.
[9]SHIN Y M,HOHMAN M M,BRENNER M P,et al.Experimental Characterization of Electrospinning:The Electrically Forced Jet and Instabilities[J].Polymer,2001,42(25):9 955-9 967.
[10]LUKAS D,SARKAR A,POKORNY P.Self-organization of Jets in Electrospinning from Free Liquid Surface:A Generalized Approach[J].Journal of Applied Physics,2008,103(8):504.
[11]FUH Y K,LIEN L C.Self-organisation of Multiple Jets in Near-field Electrospinning Process[J].Iet Micro&Nano Letters,2012,7(11):1 088-1 091.
[12]李好义.熔体微分静电纺丝原理、方法与设备[D].北京:北京化工大学,2014.
[13]LUKAS D,SARKAR A,POKORNY P.Self-organization of Jets in Electrospinning from Free Liquid Surface:A Generalized Approach[J].Journal of Applied Physics,2008,103(8):084309(1-7).