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首页> 外文期刊>Advanced Functional Materials >Superhydrophobic Shape Memory Polymer Arrays with Switchable Isotropic/Anisotropic Wetting
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Superhydrophobic Shape Memory Polymer Arrays with Switchable Isotropic/Anisotropic Wetting

机译：具各向同性/各向异性润湿性的超疏水形状记忆聚合物阵列

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摘要

Smart surfaces with tunable wettability have aroused much attention in the past few years. However, to obtain a surface that can reversibly transit between the lotus-leaf-like superhydrophobic isotropic and rice-leaf-like superhydrophobic anisotropic wettings is still a challenge. This paper, by mimicking microstructures on both lotus and rice leaves, reports such a surface that is prepared by creating microanostructured arrays on the shape memory polymer. On the surface, the microstructure shapes can be reversibly changed between the lotus-leaf-like random state and the rice-leaf-like 1D ordered state. Accordingly, repeated switch between the superhydrophobic isotropic and anisotropic wettings can be displayed. Research results indicate that the smart controllability is ascribed to the excellent shape memory effect of the polymer, which endows the surface with special ability in memorizing different microstructure shapes and wetting properties. Meanwhile, based on the smart wetting performances, the surface is further used as a rewritable functional platform, on which various droplet transportation programmes are designed and demonstrated. This work reports a superhydrophobic surface with switchable isotropic/anisotropic wettings, which not only provides a novel functional material but also opens a new avenue for application in controlled droplet transportation.
机译：在过去的几年中，具有可调润湿性的智能表面引起了很多关注。然而，获得能够在荷叶状超疏水各向同性和稻叶状超疏水各向同性润湿剂之间可逆迁移的表面仍然是一个挑战。本文通过模仿荷叶和稻米叶片上的微结构，报道了通过在形状记忆聚合物上形成微/纳米结构阵列而制备的这种表面。在表面上，微观结构形状可以在荷叶状随机状态和米叶状一维有序状态之间可逆地改变。因此，可以显示在超疏水各向同性和各向异性润湿之间的反复切换。研究结果表明，智能的可控制性归因于聚合物的优异形状记忆效果，这赋予了表面记忆不同微观结构形状和润湿特性的特殊能力。同时，基于智能润湿性能，该表面还用作可重写功能平台，在该平台上设计并演示了各种液滴传输程序。这项工作报道了具有可切换的各向同性/各向异性润湿性的超疏水表面，它不仅提供了一种新颖的功能材料，而且还为控制液滴的运输开辟了一条新途径。

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  • 来源
    《Advanced Functional Materials》 |2018年第7期|211-221|共11页
  • 作者

    Cheng Zhongjun; Zhang Dongjie; Lv Tong; Lai Hua; Zhang Enshuang; Kang Hongjun; Wang Yongzhen; Liu Pengchang; Liu Yuyan; Du Yi; Dou Shixue; Jiang Lei;

  • 作者单位

    Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Nat Sci Res Ctr, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Res Inst Aerosp Special Mat & Proc Technol, Beijing 100174, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Res Inst Aerosp Special Mat & Proc Technol, Beijing 100174, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150090, Heilongjiang, Peoples R China;

    Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, Innovat Campus, North Wollongong, NSW 2500, Australia;

    Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, Innovat Campus, North Wollongong, NSW 2500, Australia;

    Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    anisotropic wetting; reversible wettability; shape memory polymers; superhydrophobic surfaces; tunable microstructures;

    机译：各向异性润湿;可逆润湿性;形状记忆聚合物;超疏水表面;可调微结构;

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