Effect of periodate on lignin for wood adhesive application
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Richard J.A. Gosselink
,
Jan E.G. van Dam
Abstract
Development of eco-friendly binders with no harmful emission during its complete life cycle is of high interest for the wood-based industry. In this paper, a fully renewable binder based on activated lignin and poly-furfuryl alcohol and a partly renewable lignin based phenol-formaldehyde (PF) binder were evaluated. Activation of kraft and soda lignins, isolated respectively from softwood and non-woods, by periodate oxidation was performed to improve lignin reactivity and application in wood adhesives. Periodate oxidation of lignin leads to higher lignin acidity, formation of quinonoid groups under more severe conditions, higher molar mass and higher reactivity towards the curing of furfuryl alcohol within a temperature range currently used in industry. Comparison of a 100% furan-based glue with a furan-based glue substituted by 10% lignin yields comparable product properties. However, periodate-activated lignin leads to lower wood failure, which might be caused by incompletely solubilised lignin particles in the acidic formulation disturbing crosslinking of the furan resin. Unmodified softwood kraft lignin performs well in a PF resin formulation at substitution levels up to 30% (w/w). Periodate oxidation of soda lignins enhances the glue performance because higher wood failure is attained. The higher molar mass after periodate treatment could be an important parameter for development of a stronger wood binder.
©2011 by Walter de Gruyter Berlin New York
Articles in the same Issue
- Editorial
- Note from the Editor-in-Chief
- Original papers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 1. Catalyzed reactions with wood models and wood polymers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 2. Non-catalyzed reactions with the wood cell wall
- Effect of periodate on lignin for wood adhesive application
- Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
- Novel paper sizing agents based on renewables. Part 4: Application properties in comparison to conventional ASA sizes
- Organosolv pretreatment of olive tree biomass for fermentable sugars
- NIR-based prediction of extractives in American white oak heartwood
- Synthesis and herbicidal activity of 5-dehydroabietyl-1,3,4-oxadiazole derivatives
- Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
- Prediction of plywood bonding quality using an artificial neural network
- Photostability and moisture uptake properties of wood veneers coated with a combination of thin sol-gel films and light stabilizers
- Thermal degradation of bending properties of structural wood and wood-based composites
- Modelling time-dependent mechanical behaviour of softwood using deformation kinetics
- Viscoelastic properties of woody hemp core
- Scale effect in the anisotropic deformation change of tracheid cells during water adsorption
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 1. Genus Trichoderma
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 2. Genus Penicillium
- Fungi associated with bamboo and their decay capabilities
- Antifungal activities of three supercritical fluid extracted cedar oils
- Short Note
- Influence of wood specimen thickness on its mechanical properties by tensile testing: solid wood versus veneer
- Meetings
- Meetings
Articles in the same Issue
- Editorial
- Note from the Editor-in-Chief
- Original papers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 1. Catalyzed reactions with wood models and wood polymers
- Delineating pMDI model reactions with loblolly pine via solution-state NMR spectroscopy. Part 2. Non-catalyzed reactions with the wood cell wall
- Effect of periodate on lignin for wood adhesive application
- Spherical PF resin beads prepared from phenol-liquefied Bambusa dolichoclada with suspension polymerization
- Novel paper sizing agents based on renewables. Part 4: Application properties in comparison to conventional ASA sizes
- Organosolv pretreatment of olive tree biomass for fermentable sugars
- NIR-based prediction of extractives in American white oak heartwood
- Synthesis and herbicidal activity of 5-dehydroabietyl-1,3,4-oxadiazole derivatives
- Quantification of polypropylene (PP) in wood plastic composites (WPCs) by analytical pyrolysis (Py) and differential scanning calorimetry (DSC)
- Prediction of plywood bonding quality using an artificial neural network
- Photostability and moisture uptake properties of wood veneers coated with a combination of thin sol-gel films and light stabilizers
- Thermal degradation of bending properties of structural wood and wood-based composites
- Modelling time-dependent mechanical behaviour of softwood using deformation kinetics
- Viscoelastic properties of woody hemp core
- Scale effect in the anisotropic deformation change of tracheid cells during water adsorption
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 1. Genus Trichoderma
- Phylogenetic analysis of major molds inhabiting woods and their discoloration characteristics. Part 2. Genus Penicillium
- Fungi associated with bamboo and their decay capabilities
- Antifungal activities of three supercritical fluid extracted cedar oils
- Short Note
- Influence of wood specimen thickness on its mechanical properties by tensile testing: solid wood versus veneer
- Meetings
- Meetings
