Get access

Synthesis of epoxy resins from alcohol-liquefied wood and the mechanical properties of the cured resins

Authors

  • Hajime Kishi,

    Corresponding author
    1. Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    • Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    Search for more papers by this author
  • Yuki Akamatsu,

    1. Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    Search for more papers by this author
  • Masayuki Noguchi,

    1. Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    Search for more papers by this author
  • Akira Fujita,

    1. Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    Search for more papers by this author
  • Satoshi Matsuda,

    1. Division of Environmental and Energy Engineering, Graduate School of Engineering, Himeji Institute of Technology, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
    Search for more papers by this author
  • Hirofumi Nishida

    1. Research and Development Division, Nagase ChemteX Corporation 236, Tatsunocho-nakai, Tatsuno, Hyogo 679-4124, Japan
    Search for more papers by this author

Abstract

New wood-based epoxy resins were synthesized from alcohol-liquefied wood. Wood was first liquefied by the reaction with polyethylene glycol and glycerin. The alcohol-liquefied wood with plenty of hydroxyl groups were precursors for synthesizing the wood-based epoxy resins. Namely, the alcoholic OH groups of the liquefied wood reacted with epichlorohydrin under alkali condition with a phase transfer catalyst, so that the epoxy groups were put in the liquefied wood. The wood-based epoxy resins and the alcohol-based epoxy resins as reference materials were cured with polyamide amine. The glass transition temperature (Tg), the tensile strength, and the modulus of elasticity of the wood-based epoxy resin were higher than those of the alcohol-based epoxy resin. Also, the shear adhesive strength of the wood-based epoxy resin to steel plates was higher than those of the alcohol-based epoxy resins, which was equivalent to the level of petroleum-based bisphenol-A type epoxy resins. The higher Tg of the wood-based epoxy resin than that of the alcohol-based epoxy resin is one of the evidences that the wood-derived molecules were chemically incorporated into the network structures. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Get access to the full text of this article

Ancillary