Fixation of ionic liquids into polyether-based polyurethane films to maintain long-term antistatic properties

2019-11-04 18:07:39 adman 75
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Fixation of ionic liquids into polyether-based polyurethane films to maintain long-term antistatic properties



Ionic liquids (ILs) were fixed into polyether-based polyurethane (PU) films for sustainable antistatic properties. Preliminarily, ILs were screened in terms of efficiency of antistatic effect. Surface resistivity (ρs) for IL-doped PU films changed depending the anion species, and the smallest ρs was found for the PU films containing bis(trifluoromethanesulfonyl)imide ([Tf2N])-type ILs. Then, [Tf2N]-type ILs composed of ammonium cations having hydroxyl groups were fixed into the PUs through urethane bonds. The fixation of 1000 ppm of the ILs reduced the ρs of the PU films from 2.1 × 1012 to 2.1 × 109 Ω sq−1. These IL-fixed PU films were revealed to possess high washing durability confirmed by negligible change of ρs before and after ultra-sonication treatment in methanol.

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Monils - 默尼离子液体
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标签:  双三氟甲磺酰亚胺锂 LiTFSI TFSI离子液体 抗静电 离子液体抗静电剂