• 文献标题:   Jatropha curcas oil based alkyd/epoxy/graphene oxide (GO) bionanocomposites: Effect of GO on curing, mechanical and thermal properties
  • 文献类型:   Article
  • 作  者:   GOGOI P, BORUAH R, DOLUI SK
  • 作者关键词:   alkyd, go, bionanocomposite, tensile strength, thermal stability, curing time
  • 出版物名称:   PROGRESS IN ORGANIC COATINGS
  • ISSN:   0300-9440
  • 通讯作者地址:   Tezpur Univ
  • 被引频次:   16
  • DOI:   10.1016/j.porgcoat.2014.09.022
  • 出版年:   2015

▎ 摘  要

Jatropha curcas oil based alkyd/epoxy/GO bionanocomposites were prepared by direct solution blending of alkyd/epoxy blend matrix with GO nano filler. Structures and properties of the bionanocomposites were characterized with Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, thermogravimetric analysis, and tensile testing. X-ray diffraction and transmission electron microscopy study demonstrates the formation of highly exfoliated GO layers and its homogeneous dispersion throughout the polymer matrix with 1 and 3 wt% GO. However, the intercalated structure is predominant with 5 wt% GO. The homogeneous dispersion and the strong interaction of the GO layers and the polymer matrix induced the significant improvement in thermal and mechanical properties of the bionanocomposites. The tensile strength and elastic modulus of the bionanocomposite increased by 133% and 68% respectively with 3 wt% GO loading. The thermal stability of the bionanocomposite improved by 39 degrees C and T-g is shifted toward higher temperature by 20 degrees C as compared to the pristine polymer. Incorporation of GO significantly decreases the curing time of the alkyd/epoxy resin blend. (C) 2015 Elsevier B.V. All rights reserved.