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Direct printing of anisotropic wetting patterns using aerodynamically focused nanoparticle (AFN) printing

机译：使用气动聚焦纳米粒子（AFN）印刷法直接印刷各向异性润湿图案

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摘要

Micro- and nanoscale structures are of interest in various engineering fields due to their unique properties, such as hydrophobicity. In particular, microano hierarchical structures have been investigated to promote surface hydrophobicity. Here, aerodynamically focused nanoparticle (AFN) printing was used for direct printing of superhydrophobic patterns. As AFN printing is a room-temperature direct printing technique, printed features have a hierarchical structure of two levels; nanoscale porous surface and microscale-printed patterns in three-dimensional structures. Moreover, because it is an additive fabrication technique, the printed pattern is repairable and can be reconfigured as desired. In this study, silver nanoparticles were used to implement a superhydrophobic pattern with a minimum width of tens of microns. The contact angle of water droplets was measured for various patterns, and the effects of nanoscale porosity and pattern interval were investigated. In addition, patterns were designed and fabricated to have anisotropic superhydrophobicity. The experimental results were analyzed and explained with the classical Wenzel and Cassie-Baxter models. (C) 2016 Elsevier B.V. All rights reserved.
机译：微米和纳米级结构由于其独特的特性（例如疏水性）而在各种工程领域中受到关注。特别地，已经研究了微/纳米分级结构以促进表面疏水性。在这里，气动聚焦纳米颗粒（AFN）印刷用于超疏水图案的直接印刷。由于AFN印刷是一种室温直接印刷技术，因此印刷的特征具有两个层次的层次结构。三维结构的纳米级多孔表面和微米级印刷图案。而且，因为它是一种增材制造技术，所以印刷的图案是可修复的，并且可以根据需要进行重新配置。在这项研究中，银纳米颗粒被用于实现最小宽度为几十微米的超疏水图案。测量了各种图案的水滴接触角，并研究了纳米级孔隙率和图案间隔的影响。另外，图案被设计和制造为具有各向异性的超疏水性。用经典的Wenzel和Cassie-Baxter模型分析并解释了实验结果。 （C）2016 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Applied Surface Science》 |2017年第2期|1450-1457|共8页
  • 作者

    Yoon Hae-Sung; Lee Hyun-Taek; Kim Eun-Seob; Ahn Sung-Hoon;

  • 作者单位

    Seoul Natl Univ, Plus Transformat Training Program Creat Mech & Ae, Seoul 08826, South Korea;

    Seoul Natl Univ, Dept Mech & Aerosp Engn, Bldg 301,Room 1205,1 Gwanak Ro, Seoul 08826, South Korea;

    Seoul Natl Univ, Dept Mech & Aerosp Engn, Bldg 301,Room 1205,1 Gwanak Ro, Seoul 08826, South Korea;

    Seoul Natl Univ, Dept Mech & Aerosp Engn, Bldg 301,Room 1205,1 Gwanak Ro, Seoul 08826, South Korea|Seoul Natl Univ, Inst Adv Machines & Design, Seoul 08826, South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Direct printing; Microstructure; Superhydrophobic pattern;

    机译：直接印刷;微观结构;超疏水图案;

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