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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Vacuum-assisted layer-by-layer superhydrophobic carbon nanotube films with electrothermal and photothermal effects for deicing and controllable manipulation
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Vacuum-assisted layer-by-layer superhydrophobic carbon nanotube films with electrothermal and photothermal effects for deicing and controllable manipulation

机译：真空辅助层逐层超疏水碳纳米管膜，具有电热和光热效应，用于制剂和可控操纵

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摘要

The fabrication of functional superhydrophobic surfaces that combine various performances for the emerging application horizons such as deicing and self-propelled machines remains challenging. In the present work, a vacuum-assisted layer-by-layer superhydrophobic carbon nanotube film integrating the electrothermal effect with photothermal performance was fabricated by vacuum-assembling a multilayer of carboxylated and aminated multiwalled carbon nanotubes ((MWCNTs-COOH/MWCNTs-NH2)(n)), followed by transferring onto a desired substrate coated with an ethylene-vinyl acetate (EVA) copolymer and modifying with n-octadecylamine (ODA) through the amidation reaction. Using a filtration membrane as a template, the multiwalled carbon nanotube (MWCNT) film displayed micro-nano hierarchical roughness in support of superhydrophobicity with a CA of 165 degrees. Importantly, the MWCNT film also served as a functional heater under an applied voltage or different light sources. Utilizing the electrothermal effect and water repellency, the superhydrophobic MWCNT film was successfully applied in high-speed deicing. Additionally, combining the surface tension gradients generated by photothermal performance with reduced drag on the water surface, the superhydrophobic MWCNT film was propelled to move linearly, curvilinearly, and rotationally. These findings conceivably stand out as a new tool to fabricate functional superhydrophobic films with electrothermal and photothermal effects for various potential applications.
机译：功能性超疏水表面的制造结合了各种性能的新兴应用范围，例如除冰和自推进机器仍然具有挑战性。在本作工作中，通过真空组装羧化和胺化的多壁碳纳米管（（MWCNTS-COOH / MWCNTS-NH2）真空组装具有光热性能的真空辅助层面超疏水碳纳米管薄膜与光热性能的电热效果相结合（n）），然后转移到涂有乙烯 - 乙酸乙烯酯（EVA）共聚物的所需底物上并通过酰胺化反应用N-十八烷基胺（ODA）改性。使用过滤膜作为模板，多壁碳纳米管（MWCNT）膜显示出具有165度的CA的超疏水性的​​微纳米分层粗糙度。重要的是，MWCNT薄膜还用作施加的电压或不同光源下的功能加热器。利用电热效应和防水性，超疏水性MWCNT薄膜以高速除冰成功应用。另外，组合通过减少水表面的牵引力产生的光热性能产生的表面张力梯度，超疏水的MWCNT薄膜被推动以线性，曲线曲线和旋转移动。这些发现可以想象是制造具有电热和光热效应的功能性超疏水膜的新工具，用于各种潜在的应用。

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    Su Xiaojing; Li Hongqiang; Lai Xuejun; Yang Zhipeng; Chen Zhonghua; Wu Wenjian; Zeng Xingrong;

  • 作者单位

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

    Dongguan Univ Technol Sch Environm &

    Civil Engn Dongguan 523808 Peoples R China;

    South China Univ Technol Sch Mat Sci &

    Engn Guangzhou 510640 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 工程材料学;
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