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聚丙烯腈/柠檬酸复合纳米纤维膜的制备与调湿性能

Preparation of Polyacrylonitrile/Citric Acid Nanofiber Membrane and Its Humidity Control

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【作者】 张佳敏王娇娜李秀艳邓慧杰张聚华

【Author】 ZHANG Jia-min;WANG Jiao-na;LI Xiu-yan;DENG Hui-jie;ZHANG Ju-hua;School of Materials Design and Engineering,Beijing Institute of Fashion Technology;Beijing Key Laboratory of Clothing Materials R&D and Assessment,Beijing Engineering Research Center of Textile Nanofiber,Beijing Institute of Fashion Technology;

【通讯作者】 王娇娜;

【机构】 北京服装学院材料设计与工程学院服装材料研究开发与评价北京市重点实验室北京市纺织纳米纤维工程技术研究中心

【摘要】 采用静电纺丝技术制备了柠檬酸(CA)掺杂的聚丙烯腈(PAN)复合电纺纳米纤维膜,CA可以显著增大纳米纤维膜的比表面积和提升浸润性。采用红外光谱(IR)、扫描电镜(SEM)等手段对纳米纤维膜的结构与微观形貌进行了表征,以氯化锂(LiCl)溶液为调湿溶液浸泡复合纳米纤维膜,在实验室自制实时连续监测模拟装置中进行模拟调湿性能测试。结果表明:与纯PAN纳米纤维膜相比,PAN/CA6(CA的质量分数为6%)复合纳米纤维膜比表面积提高近6倍,水接触角减小10°,浸润性明显提升,且相同条件下,除湿率提高56.8%,吸湿速率更快。

【Abstract】 Polyacrylonitrile(PAN) doped with citric acid(CA) composite electrospun nanofiber membranes was prepared by electrospinning technology.CA can significantly increase the specific surface area and wettability of the nanofiber membrane.Infrared spectroscopy(IR),scanning electron microscopy(SEM) and other methods were used to characterize the structure and micro-morphology of the nanofiber membrane.The composite nanofiber membrane was immersed in a lithium chloride(LiCl) solution as a humidity-controlling solution,and the simulated humidity control performance was tested by lab-made real-time continuous monitoring simulation device.The results show that,compared with the pure PAN nanofiber membrane,the specific surface area of the PAN/CA6(the quality score of CA is 6%) composite nanofiber membrane is increased nearly by 6 times,and the water contact angle is reduced by 10°.And the wettability of the membrane is improved significantly.Under the same conditions,the dehumidification rate is increased by 56.8%,and the moisture absorption rate is higher.

【基金】 北京市自然科学基金资助项目(2182014);北京服装学院高水平教师队伍建设专项资金(BIFTQG201801);北京市科协“金桥工程种子资金”(H2017-42);北京市重点实验室开放课题、北京服装学院创新团队建设计划项目(BIFTTD201903)
  • 【文献出处】 北京服装学院学报(自然科学版) ,Journal of Beijing Institute of Fashion Technology(Natural Science Edition) , 编辑部邮箱 ,2020年04期
  • 【分类号】TB383.2;TQ340.64
  • 【被引频次】1
  • 【下载频次】194
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