Wheat-gluten-based adhesives for particle boards: Effect of crosslinking agents
2014 (English)In: Macromolecular materials and engineering (Print), ISSN 1438-7492, E-ISSN 1439-2054, Vol. 299, no 1, 116-124 p.Article in journal (Refereed) Published
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. The potential of crosslinked wheat-gluten-based adhesives for particle boards is demonstrated. The effect of parameters such as crosslinking type and pH is described. A formaldehyde-free particle board adhesive is thus obtained.
Place, publisher, year, edition, pages
2014. Vol. 299, no 1, 116-124 p.
adhesives, crosslinking, particle boards, plant proteins, wheat gluten
Other Chemistry Topics
IdentifiersURN: urn:nbn:se:kth:diva-140896DOI: 10.1002/mame.201300045ISI: 000330621800012ScopusID: 2-s2.0-84891889921OAI: oai:DiVA.org:kth-140896DiVA: diva2:693751
QC 201402052014-02-052014-02-042014-03-07Bibliographically approved