• 文献标题:   Optimized preparation of electrically conductive cotton fabric by an industrialized exhaustion dyeing with reduced graphene oxide
  • 文献类型:   Article
  • 作  者:   SHEN WF, DONG YC, CUI GX, LI B
  • 作者关键词:   graphene oxide, cotton fabric, exhaustion dyeing, reduction, electrically conductive
  • 出版物名称:   CELLULOSE
  • ISSN:   0969-0239 EI 1572-882X
  • 通讯作者地址:   Tianjin Polytech Univ
  • 被引频次:   8
  • DOI:   10.1007/s10570-016-1006-y
  • 出版年:   2016

▎ 摘  要

Cotton woven fabrics were first dyed with a graphene oxide (GO) aqueous dispersion using a simple industrialized exhaustion dyeing process. The resulting fabrics were then chemically reduced to prepare the electrically conductive cotton fabrics. They were characterized by the FE-SEM, XPS and Raman spectrum and evaluated with respect to whiteness, electrical surface resistance and electrochemical impedance spectroscopy. Some factors affecting the process such as the GO concentration, dyeing and reducing conditions, and nature and concentration of the reducing agent were also investigated. The results indicated that GO could be fixed on cotton fabric by a simple exhaustion dyeing process and converted into the reduced GO (RGO) with a reducing agent. Increasing the GO concentration or dyeing temperature and time decreased the whiteness and electrical surface resistance of the RGO-dyed fabric. However, higher pH showed a reverse effect. Na2S2O4 was found to be a stronger reducing agent for the conversation of GO into RGO on cotton fabric than ascorbic acid and thiourea. The reduction of GO-dyed fabric was easily completed by an increasing Na2S2O4 concentration at higher temperature. Moreover, an increasing number of dyeing cycles decreased the surface resistance and impedance modulus and increased the abrasion resistance of the RGO-dyed cotton fabric.