Your search resulted in 239 documents. Displaying 25 entries per page.
Functionalization of wood with nano-sized titanium dioxide – Efficacy against mould growth and effect on cell wall integrity
2025 - IRG/WP 25-20740
Nano-sized titanium dioxide (nano TiO2) is a photocatalytic compound that generates reactive radicals under UV radiation, which can inhibit microbial growth and impart self-cleaning properties. This effect has been widely utilised on materials such as glass or tiles. This study investigates the potential…
U Hundhausen, S Bollmus, L Ross
Citric acid/urea derivatives as an anti-discolouration treatment for wood surfaces
2025 - IRG/WP 25-20741
The exterior-use wood faces raining and sunlight exposure, which can cause property changes of the wood, such as the discolouration, dimensional instability, and biological attack. This article explores the use of citric acid and urea as surface protection of wood. The heating of citric acid and urea…
C-F Lin, O Myronycheva, D Jones, O Karlsson
Evaluation of 'Deep Penetration Treatment' for wood preservation
2025 - IRG/WP 25-20746
…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…
M Ikeda, T Shigeyama, Y Sugai
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…
T-H Lin, P-Y Kuo
Carbon quantum dots as a fungicide and its applications in wood
2025 - IRG/WP 25-20754
…charged nano-sized CQDs primarily adhered and penetrated into fungal cell membrane. This led to fungal metabolism disorder, significant reduction in enzymatic activities, and ultimately cell death, as confirmed by transcriptome analysis. Additionally, CQDs generated reactive oxygen species (ROS) under light, causing…
X Zhao, Z Zhang, M Zhou, J Cao
Predicting weather resistance of Recoated Outdoor Wood by Near Infrared Diffuse Reflectance Spectroscopy
2025 - IRG/WP 25-20757
Wood exposed to the outdoors causes slow degradation. One wood treatment to retain this degradation is paints and stains, and recoating is essential process for these coated wood products to achieve a long service life. We investigated that possibility of using near…
M Murai, M Itani, K Isoda
The impact of common fire retardancy salts and minerals on further properties of wood
2025 - IRG/WP 25-30821
…become an increasingly important construction material. To ensure fire safety, fire retardants are widely applied. Recent research focuses on environmentally friendly fire retardants with strong fixation. Phosphate-based salts like diammonium hydrogen phosphate show high fire protection potential but are highly…
T Franke, T Volkmer
Properties of plasma etched super black wood
2025 - IRG/WP 25-30825
Super-black materials have very low reflectivity due to structural absorption of light. They are attracting considerable scientific and industrial attention because of their important applications in many fields including astronomy, photovoltaics, and optical science, amongst others. We have developed the first…
K J Cheng, X Xu, V A Hernandez, P D Evans
Introduction of UV absorbers to wood surfaces via atom transfer radical polymerization
2025 - IRG/WP 25-30834
…wood materials varies depending on the environmental factors such as microorganisms, water, and light. In particular, wood surfaces exposed to outdoor conditions are rapidly degraded because cell wall chemical components such as lignin structure strongly absorb ultraviolet (UV) light, which leads to…
K Maezaki, Y Mori, M Kiguchi
Fungal decay in cable car pylons in Svalbard - overview of results
2025 - IRG/WP 25-41026
A total of 212 iconic wooden cable car pylons were constructed for mining operations in Svalbard, significantly contributing to Longyearbyen's historical identity as a mining town. Fieldwork in Svalbard involved collecting wood samples from 22 of these pylons,…
G Alfredsen, M Altgen, M S Austigard, J Mattsson, M Nunez, L Ross, S Aarseth Tunstad, A Treu, I A Yakovlev, N Bjerregaard Pedersen
Investigation of the Correlation between Blue-Light and Transparent Wood and Its Impact on Eye cells
2025 - IRG/WP 25-41042
The widespread use of LED blue light (400–480 nm) in modern life has raised concerns due to its potential risks to eye health, including retinal cell damage and vision degradation. Transparent wood, a renewable material with unique optical properties and environmental benefits, shows…
J-Y Jiang, C W Lin, P-Y Kuo
Hyperspectral imaging in qualitative and quantitative assessment of biocide treated timber
2025 - IRG/WP 25-50407
A hyperspectral camera operating in the shortwave infrared light range between 1000 – 2500 nm was used to collect spectral profiles of timber treated with different biocides and varying concentrations of a copper-ethanolamine based wood preservative. The spectra were analysed using statistical methods like…
J Levanič, E Keržič, B Lesar, M Humar
Time-lapse evaluation of Aureobasidium pullulans growth on selected lignin derivatives and chitosan
2024 - IRG/WP 24-11032
Wood, often referred to as the “building material of the 21st century”, has gained recognition as an attractive alternative to several traditional building solutions. To enlarge the application of wood, several properties including biotic and abiotic degradation resistance…
Gubensek, F Poohphajai, A Tosic, K Butina Ogorelek, W Pajerski, A Cernosa, V Hribljan, A Sandak
Enhancing UV resistance and decay resistance of wood by nanoparticle dispersed linseed oil nanoemulsion
2024 - IRG/WP 24-20706
…and cost-effective wood coatings and preservatives has led to the development of water-borne formulations and use of non-toxic and natural materials such as vegetable oils and waxes. The aim of this study was to improve the UV resistance and decay resistance of wood by nanomaterial dispersed linseed oil emulsions.…
R Bansal, R Kumar, K K Pandey
Why preserved wood is used for infrastructure
2024 - IRG/WP 24-20711
…wood in particular, products have been and continue to be selected for the infrastructure of civilization. Wood is a remarkable and renewable building material, offering high strength, light weight, flexibility, and availability. Preservation by creosote treatment adds great durability to the wood products.…
S T Smith
Binder-free, fire-resistant, light-weight fiberboard materials encrusted with expandable graphite and borax
2024 - IRG/WP 24-20714
…is not soluble in water fire retardants. This study aimed to manufacture cellulose-based composite boards that effectively protect against fire. The manufacturing process encompasses additive-cellulose fiber blending, flotation, moisture extraction, and final product drying stages. The fire properties of the…
W Perdoch, W Grześkowiak, B Mazela
A new wood preservative system based on basic copper compound nanosols
2024 - IRG/WP 24-20728
A bottom-up process was established to synthesize insoluble basic copper compound nanoparticles and simultaneously form a stable nanosol by dropping a neutralizing agent solution into an aqueous solution of a copper compound to which an appropriate dispersant…
J O Kim, J-G Kang, Y-S Choi, S-M Yoon, H-M Lee, J-G Park
Developing thermal-energy storage systems based on Kraft lignin-glyoxal and organic phase-change material modified wood
2024 - IRG/WP 24-30810
…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…
C-F Lin, O Karlsson, D Jones, D Sandberg
Leaching and chemical redistribution of CCA components in refractory heartwood of E. nitens
2024 - IRG/WP 24-41011
…Copper Arsenate (CCA) is a wood preservative widely used to protect against fungal and insect attack. The fixation mechanism of CCA involves complex chemical reactions, including the reduction of chromium (VI) to chromium (III) and the formation of insoluble complexes. Despite fixation efforts, a portion of CCA…
J R Vargas, L Yermán, K C Wood, T Singh
Assessment of the Material Durability and Structural Integrity of the Wooden Velodrome in Češča vas, Slovenia
2023 - IRG/WP 23-11012
…industry, and it has been utilized for thousands of years to create buildings and other structures. When wooden structures are designed, built, and maintained properly, they can be safe and long-lasting. Sports facilities, which provide athletes with a space to train, compete, and improve their abilities, are…
D Kržišnik, M Humar, B Lesar
Performance of a noise barrier with different wood materials – results from a service trial after 25 years of exposure
2023 - IRG/WP 23-30776
…with the construction of the railway connection between Stockholm Arlanda airport and Stockholm city, an 11 km long noise barrier made of untreated European larch was built along the railway line. This provided an opportunity to implement a full-scale study comparing different untreated wood species and…
J Jermer, M Westin
Improvement of durability of Scots pine against termites by impregnation with citric acid and glycerol followed by in situ polyesterification
2023 - IRG/WP 23-30777
…and glycerol (Gly) followed by heating 140 °C according to already described procedure (L'hostis et al. 2018). The resulting modified woods were then used to evaluate the effect of chemical modification on the durability against termites. Two kinds of experiments were conducted for this purpose: field tests…
M Mubarok, J Damay, E Masson, E Fredon, Y S Hadi, I W Darmawan, P Gerardin
Investigating wood anatomical factors influencing the treatability of refractory southern pine- an imaging approach
2023 - IRG/WP 23-40975
…is non-durable, and preservative treatment is necessary to protect it against biological degradation. According to AS 1604.1 2021, timber products must have their sapwood fully treated with preservatives for various applications and hazard classes. However, there is a growing industry concern over the refractory…
M Shirmohammadi, M R Karbaschi, B Hassan, W Leggate
Modification of Gmelina arborea wood for utilization in Nigeria
2023 - IRG/WP 23-40986
…Nigeria was considered for chemical modification but had to initially be examined for its treatability. Samples of Gmelina wood were impregnated under pressure with a coloured solution (Rhodamine B) and variations in uptake along and across stem diameter were investigated. The outcome of this investigation showed…
S O Olaniran, H Militz
Decay capacity and degradation patterns of Xylaria hypoxylon on different wood species
2022 - IRG/WP 22-10985
A host of physical and environmental factors may influence fungal decay including the wood substrate, temperature, moisture, oxygen, light, pH, and nitrogen. Understanding the effects of these factors on fungal decay is important for the effective utilization of wood decay fungi in biotechnological…
E Bari, G Daniel, A Singh, J J Morrell