Wettability of a microgrid‐structured polymer film with microfabrication utilizing the stick–slip phenomenon
Wettability of a microgrid‐structured polymer film with microfabrication utilizing the stick–slip phenomenon
复制标题
利用粘滑现象进行微加工的微网格结构聚合物薄膜的润湿性
DOI：
10.1002/app.45140
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发表时间：
2017
影响因子：
3
通讯作者：
K. Yashiro
中科院分区：
文献类型：
--
作者：
K. Naito;Taisei Yamada;T. Tsutsumi;K. Yashiro
利用粘滑（SS）现象，在聚对苯二甲酸乙二酯（PET）薄膜表面上用原始的微加工方法（称为SS加工）形成微网格结构，并评价了这种表面结构对润湿性的影响。微栅结构的薄膜可以通过两轴SS加工来制备。此外，通过相对于第一SS处理的方向选择第二SS处理的方向，可以形成任意的微网格结构。SS处理的膜的水接触角和水滑动角均大于PET膜。因此，SS处理的膜显示出花瓣状效果。此外，由于来自微网格结构的钉扎效应，微网格结构的膜的水滑动角表现出各向异性。结果表明，通过SS处理可以制备具有花瓣状效果和各向异性润湿性的疏水PET膜。© 2017 Wiley Periodicals，Inc. J.应用聚合物Sci. 2017，134，45140。
A microgrid structure was formed on the surface of a polyethylene terephthalate (PET) film with an original microfabrication method (termed SS processing) utilizing the stick–slip (SS) phenomenon, and the effect of this surface structure on wettability was evaluated. Microgrid-structured films could be fabricated by two-axis SS processing. Moreover, an arbitrary parallelogram microgrid structure could be formed by selecting the direction of the second SS processing with respect to that of the first SS processing. Both water contact angle and water sliding angle of the SS-processed film were larger than that of the PET film. Hence, the SS-processed film showed a petal-like effect. Furthermore, the water sliding angle of the microgrid-structured film showed anisotropy due to the pinning effect derived from the microgrid structure. As a result, it is revealed that a hydrophobic PET film with a petal-like effect and anisotropic wettability can be fabricated by SS processing. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45140.