Your search resulted in 46 documents. Displaying 25 entries per page.
Preliminary assessment of imidazole as an adhesion system for particleboards
2025 - IRG/WP 25-41043
Particleboards with different combinations of adhesive mixtures containing imidazole, citric acid, and sorbitol were produced. Softwood sawdust from a Swedish sawmill was mixed with an aqueous solution of the chemicals and then dried to 0% moisture content pri…
A Scharf, H Dernagård, J Oja, G Ormondroyd, S Medved, D Jones
Adhesion and performance of exterior wood coatings on chemically and thermally modified wood – Results from 5.5 years outdoor exposure
2023 - IRG/WP 23-40964
…the aspect how such modifications impact on the paint adhesion and performance of a waterborne coating system.
In general, natural weathering processes put forth changes in solid wood boards in the form of cracking and discolorations due to UV degradation. Principally, the crack performance was almost…
L Emmerich, H Militz
Premature adhesion failure of exterior wood coatings – The influence of substrate temperature at coating application and moisture accumulation during storage
2022 - IRG/WP 22-40937
…and moisture accumulation during storage on the adhesion of waterborne coating systems. In the first experiment, 4 batches of wood specimens were submitted to 4 different temperatures (-25°C, 0°C, 10°C, 20°C) before coating. In the second experiment, coated wood specimens were divided into two batches.…
U Hundhausen
Adhesion durability of the thinnest CLT in Japan treated by solvent recovery system
2019 - IRG/WP 19-40882
The purpose of this study is to clarify the adhesion durability of the thinnest CLT (36 mm thickness) in Japan impregnated with preservatives (azole neonicotinoid compounds (AZN)) under solvent recovery system so called “dry pressure process” for long-term durability. The adhesion durability tests…
K Kawakami, W Ohmura
Bacterial adhesion to selected wood finishes
2017 - IRG/WP 17-40793
…population. Respectively, determination of bacterial adhesion on wooden surfaces, finished with various wood finishes or coating is an important topic. The main aims of our work were of a preliminary character. We wanted to state if the existing methods for testing of bacterial adhesion on different surfaces…
M Petrič, D Kekec, J Žigon, K Godič Torkar, K Bohinc
Wet and dry adhesion of coatings on modified and unmodified wood: influence of 18 months of natural weathering on the pull-off test and cross-cut test results
2011 - IRG/WP 11-40569
…(acetylation, furfurylation, heat treatment) on coatings adhesion after 18 months of natural weathering according to EN 927-3 in Vienna (Austria).
The paper compares two methods for assessing the adhesion: the cross-cut test (EN ISO 2409) which is the conventional method used and recommended in EN 927-3 and the…
L Podgorski, G Grüll, M Truskaller, J D Lanvin, S Bollmus
Wet and dry adhesion of coatings on modified and unmodified wood: comparison of the pull-off test and the cross-cut test
2010 - IRG/WP 10-40524
…furfurylation, thermal modification) on coatings adhesion and to compare two methods of assessing the adhesion: the cross-cut test and the pull-off test both tested in dry and wet conditions. The study also investigates the effect of other parameters of the wood substrates on adhesion like the ring…
L Podgorski, G Grüll, M Truskaller, J D Lanvin, V Georges, S Bollmus
Natural weathering of wood in a sunny climate effects on surface chemistry and paint adhesion
1997 - IRG/WP 97-20109
…periods of weathering. A tape test was used to assess the adhesion of acrylic latex primers to weathered blocks. The adhesion of exterior acrylic primers decreased on weathered wood surfaces and was significantly lower on specimens that were weathered for 5 to 10 days. An oil-modified acrylic primer showed greater…
P D Evans, P D Thay, K J Schmalzl
Interaction of cellulolytic enzymes with fungal cell wall polysaccharides
2025 - IRG/WP 25-11071
…which may form a gel-like structure that facilitates adhesion to the wood cell wall. Previous studies have suggested that the ECM fills the space between the fungal hyphae and the wood cell wall and may serve as a reaction site for extracellular enzymes. However, the mechanisms underlying the interactions…
K Fukabori, N Hattori, Y Kojima, R Iizuka, M Yoshida
Improvement and practical application of dry-type pressure treatment method
2025 - IRG/WP 25-20734
…as sawn timber. In response to this, the authors conducted adhesion strength tests, dimensional change measurements between before and after dry-treatment, and durability tests assuming the foundation environment of conventional construction methods to evaluate dry-treating engineered wood. As a result, it was found…
D Tezuka, C Igarashi
A novel anti-fungal wood crack repairing agent based on CQDs/PVA
2025 - IRG/WP 25-20744
…but also presents potential solution for eco-friendly adhesion in wood-based products, including glulam and cross-laminated timber (CLT).
X Zhao, Z Zhang, Y Peng, W Wang, J Cao
Influence of plasma treatment on the coatability of wood primer with a topcoat for exterior use
2025 - IRG/WP 25-30828
…topic. The aim of our study was therefore to evaluate the adhesion strength of the waterborne acrylic coating on oiled wood or wood with a solvent-based alkyd primer and to test the recoatability of the oil-based primer with the solvent-borne finish. Since it is known that the performance of coatings on hydrophobic…
M Petrič, L Albreht, N B Štrus, E Keržič, M Pavlič, J Žigon, S Dahle
Citric acid and sorbitol treatment: A comparative study of Canadian and Norwegian species
2024 - IRG/WP 24-30806
…high humidity and water immersion conditions. Coating adhesion was good for the treated Scots pine before ageing. For the other species, coating adhesion before aging was poor. All the coated and uncoated treated species were evaluated after 2,000 hours of UV accelerated ageing. Uncoated treated species showed a…
D Schorr, Erik Larnøy, R Stirling, G Boivin
Effects of preservative impregnations on wettability and surface free energy properties of Eucalyptus grandis wood
2023 - IRG/WP 23-40978
…energy (SFE) are crucial parameters for evaluating the adhesion thermodynamics of solid surfaces. Hence, this study investigated the effects of copper azole (CA) and disodium octaborate tetrahydrate (DOT) preservative impregnations on Eucalyptus grandis wood wettability and SFE. Wettability was determined in…
A A Alade, C B Wessels, H Stolze, H Militz
Comparative study of the properties of silicate coatings with different mineral pigments (titanium dioxide, iron (III) oxide, copper (II) oxide) on the surface of wood
2022 - IRG/WP 22-40936
…under ambient conditions. The colour, surface roughness, adhesion strength, and resistance to cold liquids of the cured coatings were determined and reactions to fire of the coatings were compared using single flame source tests. The surface of wood was well masked by the coatings and the colour of the coatings was…
A M Cheumani Yona, M Petrič
Plasma treatment of wood - a review of 15 years of research in Göttingen
2021 - IRG/WP 21-40913
…from these changes, numerous improvements in the area of adhesion properties of wood and wood-based materials have already been achieved. Improvements of adhesion properties of paint and adhesives could also be shown for both solid wood and wood-plastic composites. This offers a great potential for downstream…
P Sauerbier, R Köhler, G Avramidis, W Viöl, H Militz
Performance of a water-borne stain on beech, spruce, MDF and OSB improved by plasma pre-treatment
2020 - IRG/WP 20-40897
…good protection, protective coatings need to exhibit good adhesion, mechanical resistance, and weathering resistance. Plasma pre-treatments are an established method to increase the performance of existing coatings including those on wood and wood-based substrates. Moreover, plasma deposition is well-known for its…
S Dahle, J Žigon, I Uranjek, M Petrič
Biofinish: A Functional Wood Surface Treatment based on Aureobasidium
2020 - IRG/WP 20-40903
…is still ongoing and more information about the mode of adhesion of the fungus to the wood surface is necessary. The aim of this study was to gain more information about the mode of adhesion of the fungus Aureobasidium to the wood surface and to investigate its relation to the fungal morphology. Aureobasidium…
S Rensink, M Sailer, S Roukens, J Gerber, H van der Mel, K Potgieter, J Spit, R Bulthuis, C Struck, M Bennink
PlasmaSolution – Curing of coating formulations using non-thermal plasmas
2020 - IRG/WP 20-40904
…good protection, protective coatings need to exhibit good adhesion, mechanical resistance, and weathering resistance. Plasma pre-treatments are an established method to increase the performance of existing coatings including those on wood and wood-based substrates. Moreover, plasma deposition is well-known for its…
S Dahle, J Žigon, M Petrič
Silicate coatings for wood substrates
2020 - IRG/WP 20-40906
…a durable coating for wood must meet a compromise between adhesion, liquid water and water vapour permeability and its flexibility. This is essential to accommodate surface strains developed, when wood swells and shrinks, to avoid cracking and debonding. Appropriate formulation combining painstakingly inorganic and…
A M Cheumani Yona, M Pavlič, M Petrič
Wood protection with cement – Part 1: Coating matters and durability of cement coated wood
2020 - IRG/WP 20-40911
…and fungal durability were undertaken to investigate the adhesion of a cement coating to wood and to assess the effect of a cement coating on the resistance to fungal decay. Swelling and shrinkage tests of uncoated specimens were undertaken to investigate dimensional stability. Laboratory fungal durability tests…
S Hirschmüller, B Marais, C Brischke, A Krey, J Bösing
Charring of Norway spruce wood surface – an alternative surface modification technique?
2019 - IRG/WP 19-40870
…similar chemical reactions might occurred. The pull-off adhesion strength test of a polyurethane coating that was applied to the substrates exhibited low tensile strength of thermally modified wood and of the charred but undamaged second layer below the surface of flame treated wood. There are only limited…
M Petric, M Pavlic, J Zigon
Improvement of short rotation teak wood properties through thermal modification
2018 - IRG/WP 18-40842
…to very durable. Coatings on heat treated teaks had better adhesion strength and better photo-stability when compared to unheated. Heated short rotation teak could be considered for exterior application.
L A Pratiwi, I W Darmawan, B George, A Merlin, C Gérardin, S Dumarçay, T Priadi, P Gérardin
Surface Protection of Wood with Metal Acetylacetonates
2017 - IRG/WP 17-40802
…uses as catalysts, cross-linking and curing agents and adhesion promotors. Some metal acetylacetonates can photostabilise polymers whereas others are photocatalysts. We hypothesise that the ability of metal acetylacetonates to photostabilise wood will vary depending on the metal in the coordination complex. We…
Yuner Zhu, P D Evans
Effect of Furfurylation on Shear Strength of Bond Line and Screw Withdrawal Resistance of Beech and Fir Wood
2016 - IRG/WP 16-40757
…increased by furfurylation level. Examination of adhesion mechanism demonstrated that formation of an appropriate interface between water-soluble adhesives and wood-polymer involves effective penetration of adhesive into cell wall. Hence, the interface of adhesives and material would be the determining…
A Talaei, H Abdolzadeh, M Saleh Zare