Development of sustainable bio-adhesives for engineered wood panels - A Review

Changes in both formaldehyde legislations and voluntary requirements ( e.g. Germany RAL) are currently the driving factors behind research on alternatives to amino-based adhesives; moreover, consumer interest in healthy and sustainable products is increasing in bio-based adhesives. Sources of formal...

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Bibliographic Details
Published inRSC advances Vol. 7; no. 61; pp. 3864 - 3863
Main Authors Hemmilä, Venla, Adamopoulos, Stergios, Karlsson, Olov, Kumar, Anuj
Format Journal Article
LanguageEnglish
Published 01.01.2017
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Summary:Changes in both formaldehyde legislations and voluntary requirements ( e.g. Germany RAL) are currently the driving factors behind research on alternatives to amino-based adhesives; moreover, consumer interest in healthy and sustainable products is increasing in bio-based adhesives. Sources of formaldehyde emissions in wood-based panels as well as different emission test methods have been discussed, and the main focus of this review is on the research conducted on sustainable bio-based adhesive systems for wood panels. Lignin, tannin, protein, and starch have been evaluated as both raw materials and adhesive alternatives to existing amino-based thermosetting adhesives. Adhesion improving modifications of these bio-based raw materials as well as the available and experimental crosslinkers have also been taken into account. Stricter legislation on formaldehyde emissions as well as growing consumer interest in sustainable raw materials and products are the main driving factors behind research on bio-based adhesives, as alternatives to amino-based ones, for wood panels.
Bibliography:Anuj Kumar is a postdoctoral researcher at Department of Forestry and Wood Technology, Linnaeus University, Sweden. The main interests of his research are polymeric biomaterials, adhesives, coatings, bio-based building materials, wood composites, wood modification and nanocomposites. He worked as a postdoctoral researcher at Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague and visiting scientist at Fraunhofer Institute for Wood Research Wilhelm-Klauditz-Institut (WKI), Germany and University of Ljubljana, Slovenia. He received his PhD degree in Chemical Engineering from the Universiti Malaysia Pahang (Malaysia) and Master's degree in Wood Science and Technology from Forest Research Institute University, Dehradun, India.
Stergios Adamopoulos is a Professor in Forest Products at the Department of Forestry and Wood Technology, Linnaeus University, Sweden. His academic career started in 1996 by working at different universities and research institutes in Greece, Spain and Germany. His research interests are related to forest utilisation, wood quality, wood protection and modification, recovery of biomaterials, and wood and fibre products.
Olov Karlsson is working as an Associate Professor at Wood Science and Engineering Division at Luleå University of Technology in Skellefteå, Sweden. Fields of interest: Solid wood chemistry and improvement of wood properties. Ph.D thesis 1998 (KTH Stockholm): Studies on the extent of bonding between lignin and polysaccharides in pulps.
Venla Hemmilä is an industrial PhD student researching lignin adhesive systems and developing crosslinkers for them. She is also employed by furniture manufacturer IKEA Industry AB as project leader for projects related to adhesive development, quality, and formaldehyde emissions.
ISSN:2046-2069
2046-2069
DOI:10.1039/c7ra06598a