A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The European VOC-regulation will force old and new member states to consequently identify less hazardous solutions for organic solvents in wood coatings. Thus, waterborne acrylic dispersions in the past decade have reached a significant market share in the European joinery and wood working industry. A significant shortcoming of the majority of commercially available standard acrylic copolymer systems is their inability to maintain their good adhesion properties to the wood substrate under the influence of moisture (wet adhesion). The formation of covalent bonds between waterborne acrylic dispersion and softwood and hardwood species mainly comprised by polar-reactive hydroxyl groups at the cellulose and hemi-cellulose polymeric chains are highlighted. The improvement of early wet adhesion bonding by adding functional monomers into acrylic polymeric chains and alternatively by wood surface activation are analysed, interpreted and discussed by a modified adhesion pull-off test method following ISO 24624 and by surface tension measurements using the Wilhelmy method. Implications towards the formulation of new types of wood acrylic dispersion are derived.
The European VOC-regulation will force old and new member states to consequently identify less hazardous solutions for organic solvents in wood coatings. Thus, waterborne acrylic dispersions in the past decade have reached a significant market share in the European joinery and wood working industry. A significant shortcoming of the majority of commercially available standard acrylic copolymer systems is their inability to maintain their good adhesion properties to the wood substrate under the influence of moisture (wet adhesion). The formation of covalent bonds between waterborne acrylic dispersion and softwood and hardwood species mainly comprised by polar-reactive hydroxyl groups at the cellulose and hemi-cellulose polymeric chains are highlighted. The improvement of early wet adhesion bonding by adding functional monomers into acrylic polymeric chains and alternatively by wood surface activation are analysed, interpreted and discussed by a modified adhesion pull-off test method following ISO 24624 and by surface tension measurements using the Wilhelmy method. Implications towards the formulation of new types of wood acrylic dispersion are derived.
Improving wet adhesion of waterborne acrylic dispersion on wood by bond activation
2002
10 Seiten, 4 Bilder, 1 Tabelle, 6 Quellen
Conference paper
English
Adhesion of waterborne acrylic and hybrid paint on wood treated with primers
| Tema Archive | 2000
Acrylic dispersions based on sugar for waterborne wood coatings
| Tema Archive | 2009
Low-VOC waterborne coatings for wood based on nitrocellulose-acrylic latex
| Tema Archive | 1992
Waterborne wows wood finishers
| Tema Archive | 1996
Waterborne Wows Wood Finishers
British Library Online Contents | 1996