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Physical Structure Induced Hydrophobicity Analyzed from Electrospinning and Coating Polyvinyl Butyral Films
Advances in Condensed Matter Physics ( IF 1.5 ) Pub Date : 2019-04-01 , DOI: 10.1155/2019/6179456
Shuo Chen 1 , Guo-Sai Liu 1 , Hong-Wei He 1 , Cheng-Feng Zhou 2 , Xu Yan 1, 3, 4 , Jun-Cheng Zhang 4
Affiliation  

Surface wettability of a film plays a critical role in its practical applications. To control the surface wettability, modification on the physical surface structures has been a useful method. In this paper, we reported the controlling physical surface structure of polyvinyl butyral (PVB) films by different film-forming methods, spin-coating, bar-coating, and electrospinning. The wettability of these PVB films was examined, and the surface morphologies and roughness were investigated. The results indicated that coating PVB films were hydrophilic, while electrospun films were hydrophobic. The physical surface structure was the key role on the interesting transition of their surface wettability. Theoretical analyses on these results found that the coating PVB films showed different mechanism with electrospun ones. These results may help to find the way to control the PVB film surface wettability and then guide for applications.

中文翻译:

从静电纺丝和涂布聚乙烯醇缩丁醛薄膜的物理结构诱导的疏水性分析

薄膜的表面润湿性在其实际应用中起着至关重要的作用。为了控制表面润湿性,对物理表面结构进行改性是一种有用的方法。在本文中,我们报道了通过不同的成膜方法、旋涂、棒涂和静电纺丝控制聚乙烯醇缩丁醛 (PVB) 薄膜的物理表面结构。检查了这些 PVB 薄膜的润湿性,并研究了表面形态和粗糙度。结果表明,涂​​覆PVB薄膜是亲水性的,而静电纺丝薄膜是疏水性的。物理表面结构是其表面润湿性有趣转变的关键作用。对这些结果的理论分析发现,涂层 PVB 薄膜显示出与电纺薄膜不同的机理。
更新日期:2019-04-01
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