摘要
以聚偏氟乙烯(PVDF)为原材料,以PET熔喷非织造布为接收基材,通过静电纺丝技术制备了微量串珠纤维复合滤料,利用扫描电子显微镜(SEM)观察纺丝液浓度、纺丝电压、纺丝距离对纤维形貌的影响,并研究了静电纺丝时间对复合滤料过滤性能的影响。结果表明,工艺参数最优组合为:纺丝液质量分数20%,纺丝电压38 kV和纺丝距离25 cm,并且各纺丝时间的复合滤料样品都表现出极高的过滤效率和较低的过滤阻力,综合考虑,优选纺丝时间为5min时,复合滤料可达到最佳的过滤性能。
Using polyvinylidene fluoride(PVDF) as raw material and the PET melt-blown nonwovens as received substrate, the micro-beaded fiber composite filter material was prepared by electrospinning technique. The influences of electrospun solution concentration, voltage and distance on fiber morphology were investigated by means of scanning electron microscope(SEM) and the influence of electrospun time on filtration performance of composite filter material was also studied. The results showed that the optimal combination of process parameters was: Spinning liquid mass fraction 20%, spinning voltage 38 kV and spinning distance 25 cm, and the composite filter material samples of different spinning time all showed extremely high filtration efficiency and low filtration resistance.
引文
[1]王超.涤锦超细纤维毛巾布的染整加工[J].纺织导报,2007(10):94-95,102.
[2]缪旭红,徐颖.EL型高速经编机的花型设计与产品开发[J].针织工业,2007(12):14-16.
[3]刘兆麟,张威,郑园园,等.静电纺聚乳酸串珠/纳米纤维低阻力复合空气过滤膜的研究[J].上海纺织科技,2017,45(8):10-13.
[4]刘兆麟,张威.PAN纳米蛛网/串珠纤维复合滤膜的设计及其过滤性能分析[J].上海纺织科技,2017,45(11):5-8,20.
[5]高悦,梁永日,温世鹏,等.压电聚偏氟乙烯纳米纤维的应用进展[J].高分子材料科学与工程,2016,32(5):176-181,190.
[6]闫涛,潘志娟.静电纺纳米纤维柔性应变传感器的研究现状[J].纺织学报,2018,39(12):152-157,165.
[7]王威,马爽,韩都,等.静电纺丝法制备服装用PVDF压电传感器[J].仪表技术与传感器,2017(10):123-126.
[8]张子浩.静电纺丝技术制备锂离子电池隔膜的研究现状[J].绝缘材料,2016,49(5):1-7.
[9]韩领,陆春,陈平,等.原位生成二氧化钛对静电纺聚偏氟乙烯锂离子电池隔膜力学性能及电化学性能的影响[J].高分子学报,2012(11):1319-1325.
[10]龚文正,周晶晶,阮诗伦,等.静电纺丝与静电喷雾技术共纺制备PPESK/PVDF复合锂电池隔膜[J].材料工程,2018,46(3):1-6.
[11]陈程,陈昀,曹建华,等.静电纺纳米纤维/串珠纤维在低阻力过滤材料中的应用[J].工程塑料应用,2015,43(10):18-22.
[12]尹君,李秋锦,封亚培.静电纺工艺参数对聚己内酯纳米纤维直径的影响[J].合成纤维,2009,12(5):26-29.
