Preparation of a multifunctional material with superhydrophobicity, superparamagnetism, mechanical stability and acids-bases resistance by electrospinning

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• 作者：Shuai Wang^a ; Qingwen Liu^a ; Yang Zhang^b ; Shaodan Wang^a ; Yaoxian Li^a ; Qingbiao Yang^a ; ^{yangqb@jlu.edu.cn} ; Yan Song^c
• 关键词：Superhydrophobic ; Electrospinning ; Mechanical stability ; Superparamagnetic ; Acids&ndash ; bases resistance
• 刊名：Applied Surface Science
• 出版年：2013
• 出版时间：15 August, 2013
• 年：2013
• 卷：279
• 期：Complete
• 页码：150-158
• 全文大小：2677 K

文摘

A multifunctional material with superhydrophobicity, superparamagnetism, mechanical stability and acids-bases resistance was developed from the bead-on-string PVDF and Fe₃O₄@SiO₂@POTS nanoparticles by electrospinning in this work. The Fe₃O₄@SiO₂@POTS nanoparticles which have excellent superparamagnetism were successfully prepared and subsequently introduced into PVDF precursor solution. Through electrospinning, Fe₃O₄@SiO₂@POTS nanoparticles irregularly distributed in the membrane to not only make a dual-scale roughness which is beneficial to obtain a superhydrophobic surface but also stimulate the material turns to superparamagnetic for wider use in different fields. More importantly, the film shows stable superhydrophobicity even for many corrosive solutions, such as acidic or basic solutions over a wide pH range and remarkable mechanical stability. The composition and surface structure of the film are the two critical factors that induce such unusual properties. The weight ratio of Fe₃O₄@SiO₂@POTS/PVDF can strongly influence the superhydrophobicity and mechanical properties of the composite films.