Zhou Jie, Luo Qiulan, Gao Pu, Ma Hui
China-Australia Institute for Advanced Materials and Manufacturing, College of Material and Textile Engineering, Jiaxing University Jiaxing 314001 PR China
College of Nanhu, Jiaxing University Jiaxing Zhejiang 314001 PR China.
RSC Adv. 2020 Mar 24;10(20):11982-11989. doi: 10.1039/d0ra01588a. eCollection 2020 Mar 19.
Materials with electrical conductivity are preferred for electronics, medical, space and other applications. Flexible, stretchable and washable conductive fabrics have been preferred over metallic materials. However, the currently available conductive fabrics are mainly made using a dip-drying process which makes it difficult to obtain a regular assembly structure of graphene sheets on the fibers. In this research, we report the development of conductive cotton fabrics through simple dyeing, graphene oxide (GO) with two distinct sizes was used to dye the fabrics which were later reduced using hydrazine hydrate. The regularity of graphene sheets on the surface of the cotton fiber can be improved by level assembly, it is beneficial to the conductive stability of the later drawing, bending and friction process. The results show that, the fabrics coated with graphene had excellent fastness to washing, friction and bending. After 20 washings and exposure to 2000 rubbing and 1000 bending cycles, the fabrics had excellent conductivity retention of 86%, 55% and 99%, respectively. In addition, the introduction of graphene causes the dyed fabric to have good infrared absorption and excellent UV resistance. Using cotton fabrics and GO to impart conductivity and UV resistance would be an affordable, sustainable and novel approach to develop functionalized materials for various applications.
具有导电性的材料在电子、医疗、航天及其他应用领域备受青睐。相较于金属材料，柔性、可拉伸且可洗涤的导电织物更受青睐。然而，目前可用的导电织物主要是通过浸轧干燥工艺制成的，这使得在纤维上难以获得石墨烯片的规则组装结构。在本研究中，我们报告了通过简单染色开发导电棉织物的方法，使用两种不同尺寸的氧化石墨烯（GO）对织物进行染色，随后使用水合肼将其还原。通过水平组装可以提高棉纤维表面石墨烯片的规整性，这有利于后续拉伸、弯曲和摩擦过程中的导电稳定性。结果表明，涂覆有石墨烯的织物具有优异的耐洗涤、摩擦和弯曲牢度。经过20次洗涤以及2000次摩擦和1000次弯曲循环后，织物分别具有86%、55%和99%的优异导电保持率。此外，石墨烯的引入使染色织物具有良好的红外吸收和优异的抗紫外线性能。利用棉织物和GO赋予导电性和抗紫外线性能将是一种经济实惠、可持续且新颖的方法，可用于开发适用于各种应用的功能化材料。
