刘延波,龚林红,刘玲玲,刘垚,陈倩,庞蓉蓉,张鑫磊,陈云霞,马营

• 1:武汉纺织大学纺织科学与工程学院
• 2:天津工业大学纺织科学与工程学院
• 3:武汉纺织大学化学与化工学院

摘要(Abstract)：

为提高层压复合防水透湿织物的防水透湿性能,通过多针头分步静电纺丝技术和热压工艺制备了聚氨酯(TPU)/聚偏氟乙烯(PVDF)/聚偏氟乙烯-六氟丙烯(PVDF-HFP)复合防水透湿纳米纤维电纺膜。设定TPU纺丝时间、热压温度、热压时间、热压压力为影响因素,耐静水压和透湿量为响应值,利用中心组合设计(central composite design,CCD)响应面法对复合电纺膜的防水透湿性能进行优化,建立复合膜防水透湿模型,得到复合电纺膜的最佳制备参数。结果表明:影响耐静水压的显著性顺序为热压温度> TPU纺丝时间>热压时间>热压压力,而且TPU纺丝时间与热压温度,热压温度与热压时间的交互作用对耐静水压影响显著;影响透湿量的显著性顺序为热压时间> TPU纺丝时间>热压压力>热压温度,且TPU纺丝时间与热压温度、热压温度与热压时间以及热压压力与热压时间之间的交互作用对透湿量的影响显著。制备复合电纺膜的最佳工艺参数为TPU纺丝时间2.07 h、热压温度137.67℃、热压压力0.52 MPa、热压时间5.41 min,所制备复合电纺膜的耐静水压值为10 906.67 mmH_2O(1 mmH_2O=9.806 65 Pa),透湿量为9 608.67 g/(m~2·24 h),与预测值的相对误差分别为5.89%和3.72%,证实了本文所建立模型的有效性。

关键词(KeyWords)： 多针头静电纺丝;复合纳米纤维膜;防水透湿;响应面法;中心组合设计

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目（51373121,51973168）

作者(Author): 刘延波,龚林红,刘玲玲,刘垚,陈倩,庞蓉蓉,张鑫磊,陈云霞,马营

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