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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A self-sensing, superhydrophobic, heterogeneous graphene network with controllable adhesion behavior
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A self-sensing, superhydrophobic, heterogeneous graphene network with controllable adhesion behavior

机译：具有可控粘附性能的自感应，超疏水性，异质石墨烯网络

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摘要

Smart superhydrophobic surfaces with controllable adhesion behavior or sensing capability have become a research hotspot in many areas, such as self-cleaning and microdroplet transportation. Herein, we design and fabricate a superhydrophobic, open-cell graphene network with a polypropylene coating (PP/OCGN) via a new method of boiling coating. The adhesive force of PP/OCGN for water droplets can be controlled easily from 66.8 N to 32.3 N by adjusting the soaking time. Using the PP/OCGN with controllable adhesion behavior, the lossless transportation of water microdroplets has been achieved. What's more, because of the boiling coating process, the PP/OCGN exhibits a heterogeneous network, which has the coated graphene on the surface and the uncoated graphene in the inner part. By means of the special network and strong water repellency of PP/OCGN, we report for the first time a conductive, superhydrophobic graphene material with a self-sensing capability for continuously falling water droplets. When the water droplets fall on the surface, the PP/OCGN with low adhesive force not only makes the droplets bounce off successfully, but also has a rapid response to the bouncing process through changing the resistance. The size of falling water droplets can also be determined. Therefore, our multifunctional superhydrophobic PP/OCGN can meet multiple needs simultaneously, such as self-cleaning and detecting raindrops, and it has great application prospects in the future.
机译：智能超疏水表面具有可控的粘附性能或检测能力已成为许多领域，如自清洁和微滴运输研究的热点。在本文中，我们设计并通过煮沸涂料的新方法制造超疏水性，开孔石墨烯网络与聚丙烯涂层（PP / OCGN）。 PP / OCGN的水滴的粘附力可以很容易地从66.8 N乘调整均热时间被控制为32.3ñ。使用PP / OCGN具有可控的粘附性能，水微滴的无损运输已经实现。更重要的是，因为沸腾涂覆工艺中，PP / OCGN表现出异构网络，其具有在表面上的石墨烯涂覆的和内部分未涂覆石墨烯。通过PP / OCGN的专用网络和强大的防水性的手段，我们报告的第一次具有自检测功能的导电性，超疏水石墨烯材料持续下跌水滴。当水滴落在表面上时，PP / OCGN具有低粘合力不仅使得液滴弹开成功，但也有通过改变电阻的弹跳过程的快速响应。落下的水滴的尺寸也被确定。因此，本公司的多功能超疏水PP / OCGN可以同时满足多种需求，如自动清洗和检测雨滴，它在未来有很大的应用前景。

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    Ding Guomin; Jiao Weicheng; Chen Liuyang; Yan Meiling; Hao Lifeng; Wang Rongguo;

  • 作者单位

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang Peoples R China;

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang Peoples R China;

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang Peoples R China;

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang Peoples R China;

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang Peoples R China;

    Harbin Inst Technol Natl Key Lab Sci &

    Technol Adv Composites Special 2 Block A Yikuang Str Harbin 150080 Heilongjiang 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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