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通过静电纺丝方法制备了掺杂离子液体([BMIM][PF_6])的聚偏氟乙烯(PVDF)纳米纤维.研究结果表明,[BMIM][PF_6]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][PF_6]的PVDF纳米纤维疏水性最高,并具有优异的防结冰性质.
Polyvinylidene fluoride (PVDF) nanofibers doped with ionic liquids ([BMIM] [PF_6]) were prepared by electrospinning method.The results showed that [BMIM] [PF_6] interacted with PVDF and promoted the formation of PVDF Form the β phase crystal.After the solvent is volatilized, the ionic liquid exists on the surface of the PVDF nanofibers.The ionic liquid content in the nanofibers has a significant effect on the surface morphology and wettability of the composite nanofibers.It can be effective through the introduction of ionic liquid Delaying the freezing time of water droplets on the surface of nanofibers, reducing the crystallization temperature of water droplets and reducing the adhesion strength of ice.The results show that the PVDF nanofibers containing 10% [BMIM] [PF_6] have the highest hydrophobicity and excellent anti-icing nature.