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Wheat-Gluten-Based Adhesives for Particle Boards: Effect of Crosslinking Agents

Authors

  • Sara Khosravi,

    1. AkzoNobel, Casco Adhesives AB, Sundsvall, Sweden
    2. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, School of Chemical Sciences and Engineering, Stockholm, Sweden
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  • Farideh Khabbaz,

    1. AkzoNobel, Casco Adhesives AB, Stockholm, Sweden
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  • Petra Nordqvist,

    1. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, School of Chemical Sciences and Engineering, Stockholm, Sweden
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  • Mats Johansson

    Corresponding author
    1. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, School of Chemical Sciences and Engineering, Stockholm, Sweden
    • Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, School of Chemical Sciences and Engineering, SE-100 44, StockholmSweden

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  • Supporting Information is available from the wiley online library or from the author.

Abstract

WG proteins show potential as environmentally friendly replacements for amino/formaldehyde resins in particle boards. The performance of WG dispersions in combination with crosslinkers as adhesives for particle boards is studied. The WG dispersions are prepared with sodium hydroxide or citric acid as the dispersing agent. Polyamidoamine-epichlorohydrin (PAAE) and trimethylolpropane triacetoacetate (AATMP) are employed as crosslinkers. The performance of the WG dispersions and the crosslinkers are evaluated based on board properties, i.e., internal bond, thickness swelling, and water absorption. The results show an enhanced performance of WG using PAAE as crosslinker. The results reveal it is advantageous to disperse WG in sodium hydroxide compared to citric acid.mame201300045-gra-0001

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