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Conductive textiles prepared by spray coating of water-based graphene dispersions

机译：通过喷涂水基石墨烯分散体制备的导电纺织品

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摘要

In the development of embedding devices on textiles like sensors and detectors the controlled formation of a conductive coating remains a critical point. Although there are several approaches for imparting conductivity to any textile, the challenges remain in balancing the practical aspects of the coating procedure that affect the conductivity with the associated mechanical properties of the textile along with a feasible economic viability of the process. In this research we developed an approach to deposit uniform conductive graphene surface coatings on polyester (PET) fabric using graphene oxide (GO) particles. Instead of using pre-reduced graphene oxide (rGO), an approach of coating an aqueous dispersion of hydrophilic GO particles was adopted. Stable aqueous dispersions of GO were formulated, and the dispersion properties were characterized using DLS and zeta potential before coating them onto the PET textiles. This approach not only helped in developing an aqueous coating technique but also helped in avoiding the need of any organic solvents which might have been required for coating hydrophobic rGO moieties onto the textile substrates. The uniformity of the coating was analyzed using scanning electron microscopy (SEM). Later, the GO coated textiles were reduced via thermal and chemical approaches and their effects on the conductive and mechanical properties of the fabric were assessed and compared. The reduction efficacy was analyzed and compared using XPS. The conductivity and water adsorption properties were correlated to the uniformity and retainment of rGO on the surface of the conductive textiles.
机译：在纺织品上的嵌入装置的开发中，如传感器和探测器的控制形成仍然是关键点。尽管存在几种用于赋予任何纺织品的电导率的方法，但是挑战仍然在平衡涂层程序的实际方面，这些方面与纺织品的相关机械性能相同，以及该过程的可行经济可行性。在本研究中，我们开发了一种使用石墨烯氧化物（GO）颗粒在聚酯（PET）织物上沉积均匀导电石墨烯表面涂层的方法。采用涂覆亲水性去颗粒的水分散体而不是使用预氧化石墨烯氧化物（RGO）。配制稳定的去水分散体，在将它们涂覆到宠物纺织品上之前，使用DLS和Zeta电位表征分散性质。这种方法不仅有助于开发水性涂料技术，而且还有助于避免任何可能需要在纺织基材上涂覆疏水性rgo部分所需的有机溶剂的有机溶剂。使用扫描电子显微镜（SEM）分析涂层的均匀性。后来，通过热和化学方法降低了去涂层纺织品，评估并比较了它们对织物的导电和机械性能的影响。使用XPS分析并比较减少疗效。导电性和水吸附性质与导电纺织品表面上的RGO的均匀性和保持性相关。

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  • 来源
    《RSC Advances》 |2020年第4期|共8页
  • 作者

    Samanta Archana; Bordes Romain;

  • 作者单位

    Chalmers Univ Technol Dept Chem Engn Gothenburg Sweden;

    Chalmers Univ Technol Dept Chem Engn Gothenburg Sweden;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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