Your search resulted in 425 documents. Displaying 25 entries per page.
Evaluating the Efficacy of Arnica Extract-Based Termiticide from Berkem Biosolutions® in Subterranean Termite Control: A Comprehensive Laboratory and Four-Year Field Study
2025 - IRG/WP 25-20731
Subterranean termites pose significant threats to wooden structures. This study evaluated the efficacy of a bio-based termiticide product containing Arnica extract from Berkem Biosolutions® in controlling subterranean termites in both laboratory and field conditions. The laboratory assessments utilised “the Bottle H” test unit, adhering to the Japan Wood Preservation Association (JWPA) standa...
D Messaoudi, S Khoirul Himmi, D Tarmadi, I Guswenrivo, S Yusuf
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
Evaluation of 'Deep Penetration Treatment' for wood preservation
2025 - IRG/WP 25-20746
‘Deep Penetration Treatment’ (DPT) is a recently developed wood preservation technique in Japan designed to meet the preservation standards required for residential foundations. This method involves spraying a specially formulated solvent-borne wood preservative onto properly incised dried lumber. Despite being a non-pressure treatment, DPT achieves penetration levels comparable to conventiona...
M Ikeda, T Shigeyama, Y Sugai
Influence of incising methods and wood moisture content on ‘deep penetration treatment’ in Japanese cedar and larch
2025 - IRG/WP 25-20749
To expand applicability of ‘deep penetration treatment’, a solvent-borne and non-pressure treatment that is commonly coupled with roller-type incising using a flat blade, we investigated drill and laser machining as alternative incising methods and examined the influence of wood moisture content on the preservative penetration. Various incising methods were applied to heartwood of Japanese ced...
S Taira, T Miyauchi, S Isaji, H Matsunaga
Durability Analysis of Bio-based Phenol-Formaldehyde Resin-Treated Wood
2025 - IRG/WP 25-20753
The aim of this study is to explore the application of bio-based materials in outdoor construction. Enhancing the durability of wood products effectively extends their carbon storage lifespan, making it essential to investigate their long-term durability. The study used commercial resin (CPF) and laboratory-synthesised petro-based phenolic resin (LPF) as control groups. Japanese cedar specimens we...
T-H Lin, P-Y Kuo
Sustainable and environmentally friendly bio-based protection against fire
2025 - IRG/WP 25-20756
Flame-retardant agents are used to confer fire resistant properties with effects strongly dependent on their ability to form char during the thermal degradation. The char coats the polymeric materials and provides a good barrier against heat and oxygen diffusion, thus reducing the combustion rate of the polymeric materials. Halogenated agents that are used today are toxic and may cause severe heal...
M Tanase-Opedal, A Larsson, P O Flaete
Curing Behaviour of Bio-based Phenol Formaldehyde Resin and the Durability Performance of Treated Wood
2025 - IRG/WP 25-20758
The aim of the study is to investigate the curing behaviours of bio-based PF resins treated Japanese Cedar (Cryptomeria japonica). Compared to conventional wood preservatives such as metal-based ACQ, bio-based PF resin was more environmentally-friendly and can store more plant-based carbon inside treated wood. However, all these preservatives have the risk of being leached out. This study conducte...
Y-S Lee, P-Y Kuo
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
CIOL Wood – Industrialization of Sustainable Wood Products: Progress and Prospects
2025 - IRG/WP 25-30820
CIOL® is an innovative, low-cost, non-toxic wood modification system designed to replace traditional, non-sustainable treatments used for wood protection. Since our last contribution in 2023, significant progress has been made in the development of CIOL® towards industrial-scale production. This update presents new results on fire protection, mechanical properties, and the continued scaling of t...
J Biørnstad
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
Effect of Deep Eutectic Solvent Pretreatment on Properties of Densified Wood
2025 - IRG/WP 25-30824
Densified wood is preferable for structural applications because of its excellent mechanical properties and sustainability, but the fixation of its compression deformation and the prevention of water-induced mechanical deterioration remain challenging. Herein, an eco-friendly and highly efficient method was designed for producing dimensionally-stable densified wood, including deep eutectic solvent...
Y Ran, 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
The coatability of oil, or of solvent-borne alkyd resin wood primers with waterborne acrylic finish is the subject of much debate, but not much information can be found in the scientific literature on this 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 recoatabilit...
M Petrič, L Albreht, N B Štrus, E Keržič, M Pavlič, J Žigon, S Dahle
Evaluation of oak bark extracts as bio-based preservative agents in wood protection
2025 - IRG/WP 25-30833
Bark represents a major by-product of the forestry sector and is often referred to low value uses such as combustion for energy, soil mulching or animal bedding. Nevertheless, bark contains a wide array of bioactive constituents, offering considerable potential for transformation into value-added wood protection agents. Developing sustainable wood treatments based on these natural compounds aligns...
R Herrera, A Selmanovic, F Poohphajai, C Peña, A Sandak
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
Effect of biodiesel-containing solvents on the performance of Copper Naphthenate and Pentachlorophenol: 118-month assessment and depletion analysis
2025 - IRG/WP 25-41022
Solvent systems are incredibly important in determining the performance of oilborne wood preservative systems and they can cause early failures in commodities treated with an otherwise effective preservative system. It is important to assess new solvent performance with oilborne preservative systems to ensure these systems continue to function with the changes. One solvent/preservative combination...
J Cappellazzi, M J Konkler, J J Morrell, C S Love, G Presley
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
Biocomposites based on fungal mycelium and beech particles impregnated with BPCM (bio-phase change material) for thermal energy storage
2025 - IRG/WP 25-41034
The building sector is a major contributor to Europe's carbon emissions, and transition to a bio-based economy is essential for achieving long-term sustainability goals. The European Union has set ambitious targets for climate-neutral heating and cooling by 2050, which requires the widespread adoption of energy-efficient and environmentally friendly technologies. A key element in this transition i...
E Nigrone, F De Francesco, J Conti, M Jebrane, M Nazari, N Terziev, S Palanti
Durability evaluation of outdoor-exposed CLT treated with various wood presevatives using CT scans
2025 - IRG/WP 25-41035
Methods for wood preservation treatment of large materials such as Cross Laminated Timber (CLT) are limited. It is unclear which wood preservation treatment methods can effectively protect CLT from rot risk. In this study, accelerated rot tests (fungus cellar test) of CLT treated with the solvent-borne wood preservative by non-pressure treatment, named ‘deep penetration treatment’, were conduc...
Y Sakurai, T Shigeyama, Y Sugai
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
Developing a Novel Bio-based PF Resin as Wood Preservative and Explore its Synthesis Route Using RSM Methodology
2025 - IRG/WP 25-41046
Phenol-formaldehyde (PF) resin treatment has long been recognized as one of the most effective and widely used wood preservation methods, offering exceptional durability, dimensional stability, and resistance against biological degradation. However, traditional PF synthesis relies heavily on petroleum-derived phenol, raising concerns about environmental impact and resource sustainability. To date,...
H-C Ye, Y-C Wu, T-H Lin, 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
Bio-Based but Toxic? The Neglected Ecotoxicity of Leachates from Wood Preservatives—A mini-review
2025 - IRG/WP 25-50403
Bio-based Wood preservatives, derived from renewable biomass, are emerging as promising alternatives to traditional synthetic wood preservatives. Research groups all around the world are studying the development of bio-based – environmentally friendly – wood preservatives and their fixation to wood finding natural compounds with very promising wood preserving potential. However, there is a ver...
A Barbero-Lopez, A Haapala
Proposal for New Evaluation Criteria for Exterior Products to Achieve a Circular Economy
2025 - IRG/WP 25-50408
In recent years, the development of laws related to the promotion of wood use in buildings in Japan has led to a significant increase in wood demand, resulting in the widespread use of various wood materials in construction. In this context, the use of preservative-treated wood, selected based on the principle of using the right material in the right place, has been emphasized. However, a systemat...
K Murakami, T Fujii, Y Iijima, T Hikiji
Wood Protection in the Tropics: A Necessity in the Face of Climate Change and Rising Demand for Wood Products Consumption
2025 - IRG/WP 25-50413
With the rising demand for forest products due to population growth and continuous expansion of tropical countries’ economies. Therefore, the need for judicious use of forest products in the advent of climate change to meet the needs of the people cannot be downplayed but serve as a clarion call to conserve and improve the use of forest products for longer services. My talk will highlight the st...
M Nurudeen Iddrisu