Wheat‐G luten‐B ased Adhesives for Particle Boards: Effect of Crosslinking Agents

S Khosravi, F Khabbaz, P Nordqvist… - Macromolecular …, 2014 - Wiley Online Library
S Khosravi, F Khabbaz, P Nordqvist, M Johansson
Macromolecular Materials and engineering, 2014Wiley Online Library
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 …
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.
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