采用静电纺丝技术制备了聚醚砜、聚对苯二甲酸乙二醇酯(PET)、热塑性聚酯弹性体和聚酰胺6(PA6)纳米纤维膜,分析了不同纳米纤维膜对溶液除湿性能的影响。选取PA6纳米纤维膜作为实验对象,研究了经过不同方式处理的PA6纳米纤维膜对溶液吸湿性能的影响。扫描电子显微镜和傅里叶变换红外光谱分析显示氯化锂充分分散到PA6纳米纤维膜的孔隙中,改变了其吸湿性能。电感耦合等离子体发射光谱测试表明,氯化锂质量浓度显著降低。除湿实验结果表明,以PET或者聚丙烯无纺布为基底制备的PA6纳米纤维膜,经过烘干处理后性能最优;随着氯化锂含量的增加,PA6纳米纤维膜吸湿现象越明显,吸湿率越大。
Poly(ether sulfone)(PES),polyethylene terephthalate (PET),thermoplastic polyeher ester elasomer (TPEE) and polyamide 6(PA6) fibrous membranes were prepared by electrospinning technology.The effect of PA6 nanofiber membrane treated by different methods on the liquid dehumidification performance was studied.Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy(FT-IR) showed that the films were full of lithium chloride and better liquid dehumidification performance.Inductively coupled plasma optical emission spectrometry (ICP-OES) revealed that the concentration of lithium chloride decreased significantly after dehumidification testing.The results showed that PA6 membranes on PET subtrate or PP subtrate after drying can make it in the best performance state.With the increase of the concentration of lithium chloride solution,the hygroscopicity also increased.
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基金资助
北京市教育委员会科技计划一般项目(SQKM201710012004);国家自然科学基金项目(51503005、2127400);北京市自然科学基金资助项目(2182014);北京市科协“金桥工程种子资金”;北京服装学院高水平教师队伍建设专项资金(BIFTQG201801);北京市科技北京百名领军人才工程(Z161100004916168)
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