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3D re-entrant nanograss on microcones for durable superamphiphobic surfaces via laser-chemical hybrid method

机译:通过激光-化学混合法在微锥上形成3D凹角纳米草,以实现耐用的超疏水表面

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摘要

The potential applications of superamphiphobic surfaces are widespread and attractive. The design of re-entrant structures is crucial to superamphiphobic surfaces. However, both the existing two strategies to design re-entrant structures face problems. Here a creative strategy to design 3D re-entrant nanostructures on ordered micro-structures is proposed. A novel "Top-down" and "Bottom-up" hybrid method consisting of ultrafast laser ablation and chemical bath processing is used to fabricate hierarchical surfaces with 3D re-entrant CuO nanograss on Cu microcones. Thanks to the low surface energy from modification with perfluorodecyltrimethoxysilane and plenty of re-entrant geometries provided by the 3D distributed nanograss structures, the hierarchical surfaces show outstanding superamphiphobicity with water and low surface tension liquid like dodecane. The influence of the nanograss types and the microcone distribution on the superamphiphobicity are systematically studied. Besides, the microconesanograss hierarchical superamphiphobic surfaces show excellent long-term durability, high temperature durability and comprehensive mechanical durability, are promising for practically applications.
机译:超两性表面的潜在应用是广泛且有吸引力的。凹入结构的设计对于超憎水表面至关重要。但是,现有两种设计可重入结构的策略都面临问题。本文提出了一种在有序微结构上设计3D凹角纳米结构的创新策略。一种新颖的“自上而下”和“自下而上”的混合方法(包括超快激光烧蚀和化学浴处理)被用来在Cu微锥上制作带有3D凹角CuO纳米草的分层表面。得益于全氟癸基三甲氧基硅烷改性产生的低表面能,以及3D分布的纳米草结构提供的大量凹入几何形状,分层表面显示出出色的超疏水性,可与水和低表面张力的液体(如十二烷)一起使用。系统地研究了纳米草的类型和微锥分布对超疏水性的​​影响。此外,微锥/纳米级分层两性表面表现出优异的长期耐久性,高温耐久性和综合机械耐久性,对于实际应用是有前途的。

著录项

  • 来源
    《Applied Surface Science》 |2018年第31期|726-736|共11页
  • 作者单位

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

    Tsinghua Univ, Laser Mat Proc Res Ctr, Sch Mat Sci & Engn, Beijing 100084, Peoples R China;

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

    Superamphiphobicity; Copper; Hierarchical structures; Femtosecond laser; Durability;

    机译:超疏水性铜分层结构飞秒激光耐久性;

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