title: Simultaneous Surface Modification and Chemical Reduction of Graphene Oxide Using Ethylene Diamine.
abstract: We report a simple and facile method of reducing and modifying graphene oxide (GO) simultaneously using ethylene diamine (ED). The ED-modified and reduced GO (denoted as E-rGO) as well as the GO reduced by hydrazine hydrate (denoted as H-rGO) were characterized by Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), Raman spectra, Thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM) and Scanning electron microscopy (SEM). It was found that as-prepared E-rGO exhibited good dispersibility in water and water-borne polyurethane (denoted as WPU) matrix and improve greatly the mechanical properties of WPU matrix. Moreover, E-rGO showed a high electric conductivity close to that of H-rGO after ultrasonic treatment for 12 h, which indicated that ED had the desired reducibility. The present approach could help to broaden the application field of graphene nanosheets and provide a new opportunity for developing high performance graphene/polymer-matrix composites.
authors.forename: Hui
authors.initials: H
authors.lastname: Pan
authors.forename: Yudong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Wang
authors.forename: Laigui
authors.initials: L
authors.lastname: Yu
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D005029:Ethylenediamines / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D010087:Oxides / Q000737:chemistry; D013057:Spectrum Analysis / Q000379:methods; D013499:Surface Properties; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D005029:Ethylenediamines; D010087:Oxides; C031234:ethylenediamine; D006108:Graphite