| 离子液体/聚偏氟乙烯纳米纤维的防结冰性能 |
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| 引用本文： | 张婷,王成臣,郭小颖,张靓.离子液体/聚偏氟乙烯纳米纤维的防结冰性能[J].高等学校化学学报,2017,38(6):959. |
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| 作者姓名： | 张婷 王成臣 郭小颖 张靓 |
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| 作者单位： | 北京科技大学化学与生物工程学院化学与化学工程系, 北京 100083 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，This paper is supported by the National Natural Science Fundation of China，the Specialized Desearch Fund for the Doctoral Program of Higher Education |
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| 摘 要： | 通过静电纺丝方法制备了掺杂离子液体(BMIM]PF6])的聚偏氟乙烯(PVDF)纳米纤维. 研究结果表明, BMIM]PF6]与PVDF具有相互作用, 并可促进PVDF形成β相晶体. 在溶剂挥发后, 离子液体存在于PVDF纳米纤维的表面. 纳米纤维中的离子液体含量对复合纳米纤维的表面形态和润湿性具有显著影响. 通过离子液体的引入, 可有效推迟水滴在纳米纤维表面的结冰时间, 降低水滴的结晶温度, 并且降低冰黏附强度. 研究结果显示含有10%BMIM]PF6]的PVDF纳米纤维疏水性最高, 并具有优异的防结冰性质.
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| 关 键 词： | 聚偏氟乙烯 离子液体 纳米纤维 疏水性 防结冰 |
| 收稿时间： | 2016-12-05 |
Anti-icing Property of Ion Liquid/PVDF Nanofibers |
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| ZHANG Ting,WANG Chengchen,GUO Xiaoying,ZHANG Liang.Anti-icing Property of Ion Liquid/PVDF Nanofibers[J].Chemical Research In Chinese Universities,2017,38(6):959. |
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| Authors: | ZHANG Ting WANG Chengchen GUO Xiaoying ZHANG Liang |
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| Institution: | School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | An electrospinning method to prepare ionic liquid(IL) incorporated poly(vinylidene fluoride)(PVDF) nanofibers was adopted in this paper.X-ray photoelectron spectrometry(XPS), Fourier transform infrared spectrophotometer(FTIR) and X-ray diffraction(XRD) results showed that the IL which appeared on the surface of the nanofibers was miscible with PVDF, and also led to a higher content of β-phase crystal in PVDF.The IL content in the nanofibers exerted a significant impact on the surface morphology and wettability of the composite nanofibers, and thus the freezing time, crystallization temperatures of water droplets on these surfaces as well as ice adhesion strength.The results showed that the PVDF nanofibers with 10% IL presented both the highest water repellency and the best anti-icing property. |
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| Keywords: | Poly(vinylidene fluoride) Ionic liquid Nanofiber Hydrophobic Anti-icing |
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