Your search resulted in 389 documents. Displaying 25 entries per page.
Developing thermal-energy storage systems based on Kraft lignin-glyoxal and organic phase-change material modified wood
2024 - IRG/WP 24-30810
This study investigated the use of modified wood as a thermal-energy storage material through the integration of paraffin-based phase-change materials (PCMs). The objective was to evaluate the influence of Kraft lignin-glyoxal prepolymer on the properties of wood modified with PCMs. The implementation of the modified wood involved preparing PCM emulsions, synthesizing lignin-glyoxal prepolymer, an...
C-F Lin, O Karlsson, D Jones, D Sandberg
A novel treatment for increasing UV stabuility of wood based on citric acid and urea
2024 - IRG/WP 24-30811
Wood, a fundamental material in the Built Environment, faces challenges related to durability and weathering, notably UV degradation leading to colour changes. This study explored a novel treatment method utilising citric acid and urea to enhance the UV stability of wood. The reaction between these compounds forms fluorescent species and insoluble nanoparticles upon thermal treatment. Two treatmen...
S Jué, A Scharf, C-F Lin, R Moutou Pitti, D Sandberg, D Jones
Durability of Malaysian plybamboo to mold
2024 - IRG/WP 24-41014
Durability of 3-layer plybamboo fabricated from two Malaysian bamboo species, Gigantochloa levis (beting) and Gigantochloa scortechinii (semantan) using three different adhesives - urea formaldehyde (UF), melamine urea formaldehyde (MUF) and phenol resorcinal formaldehyde (PRF) was evaluated in this study. Samples were exposed to the mold, Aspergillus brasiliensis for 4-week following the ASTM D44...
S Lipeh, A Mustapha, A S Yusoh, M K A Uyup
A novel anti-fungal wood crack repairing agent based on CQDs/PVA
2025 - IRG/WP 25-20744
Wood is a sustainable material, but its tendency to crack and decay poses a challenge for its applications. In this study, we developed a combination system of nitrogen-doping carbon quantum dots (N-CQDs) and polyvinyl alcohol (PVA) to repair wood cracks. Rather than employing the conventional repairing methods such as filling cracks with sawdust and petroleum based-adhesives, this technique can m...
X Zhao, Z Zhang, Y Peng, W Wang, J Cao
Transmission poles - Analysis of causes of premature failure in Slovenia
2025 - IRG/WP 25-20745
The study focuses on analysing the causes of the premature collapse of wooden transmission poles in Slovenia, where there have been several cases of rapid fungal decomposition of poles despite the planned lifespan of 30 to 50 years. The poles were made of Scots pine wood and impregnated with a copper-ethanolamine wood preservative. The research aimed to assess the condition of standing poles and e...
M Humar, B Lesar, N Kregar, S Drnovšek
Enhanced Termite Resistance of Low Durability Fast Growing Teak Wood by Non-Biocide Treatments Based on Chemical and Thermal Modification
2025 - IRG/WP 25-30818
Short rotation teak as a fast-growing tree can be considered as a renewable material resource for the future green economy. However, short rotation teak wood is susceptible to biodeterioration, particularly to termite attack. The objective of this work was to investigate the effect of chemical and thermal treatment on resistance of sapwood, transition wood, and heartwood of short rotation teak aga...
R Martha, K Candelier, M-F Thévenon, B George, I S Rahayu, W Darmawan, P Gérardin
Mineral-wood composites with improved fire properties and durability prepared through MgCO3-based mineralization
2025 - IRG/WP 25-30823
New mineral-wood composites that demonstrate improved fire properties and higher resistance to selected fungi have been prepared using an environmentally-friendly mineralisation process involving impregnation with an aqueous magnesium acetoacetate solution. MgCO3-based compounds are formed in situ, deep within the wood’s structure. We show that the new mineralisation method overcomes wood’s lo...
A Pondelak, N Knez, S D Škapin, M Humar, A S Škapin
Performance Verification of Water-Based Outdoor Wood Protection Coatings Based on Weather Resistance Evaluation
2025 - IRG/WP 25-41015
Recent trends in wood protective coatings: Concerns over volatile organic compound (VOC) emissions and the need to reduce maintenance costs have increased demand for environmentally friendly and highly durable coatings. While conventional solvent-based paints are superior in durability, they have been associated with problems such as environmental impact and odour during application. As an alterna...
N Ikemoto
AI Models for Accelerating Wood Protection Testing: Development of Predictive Tools Based on Long-Term Field Test Data
2025 - IRG/WP 25-41023
In this study, we present the development of DecAI, an artificial intelligence (AI) model designed to optimise and accelerate performance evaluations of wood protection products in the European EN 330:2014 "Field test: L-joint method." The Danish Technological Institute (DTI) compiled a dataset of over 100,000 data points from approx.10,000 L-joint samples collected over +15 years at field sites i...
J Stenbaek, B Noufel, L Glade, P Bisgaard
Transformation of bamboo: From multiscale fibers to robust and degradable cellulose-based materials for plastic substitution
2025 - IRG/WP 25-41032
Bamboo is an ideal candidate to replace traditional plastics, reduce environmental pollution, and promote harmony between nature and humanity owing to its rapid growth and renewability. However, achieving arbitrary shape-shifting of bamboo while retaining its high strength and degradability remains challenging. This study used multiscale interface engineering to transform bamboo into a robust, bio...
J Hu, Y Zhang, Y He, Z Su, W Lao, S Zhang, Y Yu, W Yu, Y Huang
Investigation of Impregnation Factors for Biomass-Based Phenol-Formaldehyde Resins
2025 - IRG/WP 25-41044
This study investigates the impregnation factors affecting the treatment of wood with biomass-based phenol-formaldehyde (PF) resins, such as impregnation methods, resin properties, and setting parameters like time and pressure. The goal is to ensure effective resin penetration into the wood cell wall structure, thereby enhancing wood durability and mechanical properties. Previous literature has la...
Y-C Huang, T-H Lin, P-Y Kuo
Towards Sustainable Wood Protection: PF resins-impregnated Paper Honeycombs and the role of Processing Parameters analysis by Response Surface Methodology
2025 - IRG/WP 25-41045
Honeycomb paperboard is an important wood-derived product and also an emerging new material to combine with wood panels. It is commonly applied as cushioning materials with excellent mechanical performance, and high demands in packaging market. The aims of this study were to enhance the durability of honeycomb paperboard using PF resins of various molecular weights (Mw 200, Mw 500, Mw 700), partic...
Y-C Wu, P-Y Kuo
Recycling wood treated with copper-based preservatives to produce hard carbon materials for energy storage applications
2025 - IRG/WP 25-50401
In this study, we explored the possibility of recycling wood treated with copper-based preservatives to produce hard carbon materials for use in energy storage devices. We pyrolsed both untreated and copper-treated wood into hard carbon, conducted microstructural and physicochemical characterisation, prepared electrode materials, and evaluated their electrochemical performance in sodium-ion batter...
D Huo, J-P Bonnet, A Jamali
Valorisation of bark extractives for wood and plant protection: the Extrabark project
2025 - IRG/WP 25-50415
The Extrabark project is an Interreg collaborative project between Lorraine in France, Wallonia in Belgium, the Saarland in Germany and Luxembourg. The objectives of the project are to develop a complete value chain of valorisation of bark generated by wood industry via the utilization of extracts or molecules for the protection of plants and wood material as a bio-sourced alternative to petrochem...
P Gérardin, C Gérardin-Charbonnier, S Dumarçay, F Obounou Akong, E Fredon, R Martha, J V Dorini Falavinha, W Donck, Z Nys, A Lepretre, L Taguimjeu, M-L Fauconnier, J Renaut, K Sergeant, S Saker, E Strilin, J Tchoumtchoua, M C Detroz, G Beauchamp