Large-area fabrication and applications of patterned surface with anisotropic superhydrophobicity
Large-area fabrication and applications of patterned surface with anisotropic superhydrophobicity
复制标题
各向异性超疏水图案化表面的大面积制备及应用
DOI：
10.1016/j.apsusc.2020.147027
复制
发表时间：
2020-11
影响因子：
6.7
通讯作者：
Changyu Shen
中科院分区：
文献类型：
--
作者：
Yameng Wang;Chaojun Gao;Wei Zhao;Guoqiang Zheng;Youxin Ji;Kun Dai;Liwei Mi;Dianbo Zhang;Chuntai Liu;Changyu Shen
近年来，各向异性超疏水表面因其良好的应用前景而引起了人们的广泛关注。然而，大面积制备低成本且具有明显各向异性的超疏水表面仍然是一个巨大的挑战。本文提出了一种自行研制的熔融热压法，在高密度聚乙烯表面快速制备出取向微图案。该表面表现出各向异性的超疏水特性，在平行和垂直方向上的静态水接触角分别为152°和145°。此外，它具有低的表面粘附力和良好的机械稳定性，显示出具有自清洁能力，减少牛奶残留和减阻的液压摩擦发电机的应用前景。该研究不仅为大面积、低成本制备有序图案化的各向异性超疏水表面提供了可能，而且为各向异性超疏水表面的广泛应用开辟了新的途径。
Recently, anisotropic superhydrophobic surfaces have aroused much attention due to their promising applications. However, large-area fabrication of low-cost superhydrophobic surfaces with obvious anisotropicity is still a huge challenge. In this work, a home-made melt hot-pressing method was proposed to facilely fabricate aligned micro-patterns on high-density polyethylene surface. Such surface displays anisotropic superhydrophobic characteristic with a static water contact angle of 152°and 145° respectively in parallel and perpendicular direction. Moreover, it has low surface adhesion and decent mechanical stability, showing promising applications for hydraulic triboelectric generator with self-cleaning ability, milk residue reduction and drag reduction. Considering the facile fabrication process and inexpensive thermoplastic polymer used, this study not only provides the possibility of large-area and low-cost preparation of orderly patterned surfaces with anisotropic superhydrophobicity, but also opens a new pathway toward wide application of anisotropic superhydrophobic surface.
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