Super-amphiphilic surface of nano silica/polyurethane hybrid coated PET film via a plasma treatment
Super-amphiphilic surface of nano silica/polyurethane hybrid coated PET film via a plasma treatment
复制标题
DOI：
10.1016/j.jcis.2015.04.065
复制
发表时间：
2015-09-01
影响因子：
9.9
通讯作者：
Choi, Ho-Suk
中科院分区：
文献类型：
--
作者：
Bui, Van-Tien;Liu, Xuyan;Choi, Ho-Suk
本研究首次报道了通过非热、一个大气压等离子体处理使用具有二氧化硅-聚氨酯混合顶涂层的PET膜制造超两亲表面。该表面与水性和油性液体的接触角接近于零，这在广泛的实际应用中引起了极大的关注。我们系统地研究了等离子体处理时间对二氧化硅-聚氨酯涂层PET表面润湿行为的影响。分析了等离子体处理前后PET表面形貌和化学组成的变化。为了深入了解超两亲性PET表面的形成并优化实现超两亲性的条件，我们使用半芯吸作用作为理论模型，并通过确定临界角进行实验验证。我们还提出了一个指导设计的纳米球图案化的PDMS表面，可以产生超润湿性能后，等离子体处理。(C)2015 Elsevier Inc. All rights reserved.
This study first reports the fabrication of a super-amphiphilic surface using PET films with a silica-polyurethane hybrid top-coat layer through a non-thermal, one-atmospheric-pressure plasma treatment. This surface displays contact angle close to zero with both aqueous and oily liquids, which has attracted enormous attention for a wide-range of practical applications. We systematically investigated the influence of the plasma treatment time on the wetting behavior of the silica-polyurethane coated PET surface. The changes in morphology and chemical composition of PET surfaces before and after a plasma treatment were analyzed. In order to gain an insight into the formation of a super-amphiphilic PET surface and optimize the conditions under which super-amphiphilicity can be realized, we used a hemi-wicking action as a theoretical model and experimentally verified it through determining the critical angle. We also proposed a guide for designing a nano-sphere patterned PDMS surface which can generate super-wetting properties after a plasma treatment. (C) 2015 Elsevier Inc. All rights reserved.