Your search resulted in 356 documents. Displaying 25 entries per page.
Molecular methods as a tool within the field of wood protection – available methods and new possibilities
2007 - IRG/WP 07-20361
The area of wood protection is in a period of change. New tools are needed to understand the mode of action, and to further improve the new wood protection systems. A set of useful tools are found among the molecular methods. This paper presents an overview of some of the tools available, and the methods are exemplified by papers within the frame of wood protection issues.
However, there is stil...
G Alfredsen, A M Hietala, C G Fossdal, H Solheim
Potentiality of use extracts from Tetraclinis articulata like biocide against wood destroying organisms: Reticulitermes santonensis
2007 - IRG/WP 07-30418
Screening trials were conducted to determine the antitermitic and antifungal properties of essential oil and methanolic extractives obtained from Tetraclinis articulata heartwood. Extract-treated cellulose pads were used to evaluate antitermitic activity and complete termite mortality was obtained with the essential oil: the threshold is situated under 5% (v/v). Standardised tests according Europe...
F El hanbali, N Amusant, F Mellouki, M Akssira, C Baudasse
Protection of wood for above ground application through modification with a fatty acid modified N-methylol/paraffin formulation
2007 - IRG/WP 07-40378
Hydrophobic chemical modification can be regarded as an alternative approach to conventional wood preservation using biocides in order to protect wood in hazard class 3 according the European Standard EN 335-1.
A formulation containing fatty acid modified N-methylol/paraffin and an aluminium salt catalyst was used to change the material properties of wood in order to protect wood from fungal dec...
Nguyen Hong Minh, H Militz, C Mai
Wood Protection by Commercial Silver Formulations against Eastern Subterranean Termites
2007 - IRG/WP 07-30422
The scope of this paper is to compare commercial formulations of aqueous products containing silver for their ability to prevent termite damage by Eastern subterranean termites in a no-choice laboratory test. Five commercial products were tested in order to explore a broad range of formulation and silver forms: colloidal, ionic and nano-particles. Southern pine wood blocks were dip treated in each...
F Green III, R A Arango
Amine Oxides for Use in Wood Protection: I. A Formulation Adjuvant and Performance Enhancer for Wood
2007 - IRG/WP 07-30425
Amine oxides have great potential for use in the area of wood protection. This paper highlights the advantages of using amine oxides as a formulation adjuvant and performance enhancer for different azoles. It was found that azoles are readily soluble in aqueous amine oxide solutions and form soluble concentrates. These azole/amine oxide concentrates have excellent storage stability and can be dilu...
Xiao Jiang, L Walker
Amine Oxides for Use in Wood Protection: II: Water Repellent Agents for Wood
2007 - IRG/WP 07-30426
Wood treated with cetyl and stearyl amine oxides was evaluated to determine its long term water repellency. Comparative water uptake data, generated during two years of outdoor exposure, illustrated that Lonza’s products, Barlox® 18S (N-octadecyl-N, N-dimethylamine oxide) and Barlox® 16S (N-hexadecyl-N, N-dimethylamine oxide), were effective water repellent agents, imparting lasting water res...
Xiao Jiang, L Walker
Bamboo Protection Research: Contributions from India
2007 - IRG/WP 07-40355
Bamboo preservation has become more important in India because of Government’s directions to develop bamboo resources and adopt their rational utilization to conserve natural forests. This paper traces the development of various processes for treatment of bamboo and their effectiveness. Results obtained by various workers since 1947 when systematic work on bamboo protection was first published. ...
S Kumar
Control of Moisture Content in Wood Materials for Mold Growth
2007 - IRG/WP 07-10630
Mold growth on wood materials is a major concern for house owners, as it can cause health and aesthetic problems. Mold fungi, present everywhere, usually appear as black or gray patches on wood surfaces in humid environments, and are common in houses. Like any living organism, molds need food, water, oxygen, and a specific temperature range in order to grow. To avoid mold growth on wood materia...
Dian-Qing Yang
Development of boron/linseed oil combined treatment as a low-toxic wood protection. Evaluation of boron fixation and resistance to termites according to Japanese and European standards
2007 - IRG/WP 07-30448
Combinations of boric acid as a first step of treatment and linseed oil as a second step have been performed in order to enhance boron retention to leaching and wood resistance to termites. Classic leaching and termites resistance standards are inappropriate to evaluate this combination which can be considered as both a wood core preservation treatment and a coating.
Japanese Industrial Standard...
F Lyon, M-F Thevenon, Y Imamura, J Gril, A Pizzi
Some studies on natural resistance of different trees and prevention of infestation by termites through use of industrial effluents at Karor, Layyah, Pakistan
2008 - IRG/WP 08-10637
The experiments were conducted to determine natural resistance/susceptibility in woods of Jaman (Syzygium cumini), Kikar (Acacia nilotica Willd.), Shisham (Dalbergia sissoo Roxb.), Poplar (Populus deltoids), Semal (Bombax ceiba) and Sufaida (Euclyptus camaldulensis) against subterranean termites’ infestation at Karor, Layyah, Pakistan. Wood stakes of these trees (30x12x3cm) were buried in soil a...
S Ahmed, M Arshad Ejaz, M Asam Riaz, A Hussain
A hypothesis on a second non-biocidal property of wood extractives, in addition to toxicity, that affects termite behavior and mortality
2008 - IRG/WP 08-10638
While it is has long been recognized that heartwood extractives affect termite behavior, the exact cause and relationship between total extractives, extractive types, and termite resistance remains unclear. Generally, researchers have proposed that the extractives are toxic and/or repel termites. We propose, based on the well known fact that many extractives have excellent antioxidant properties...
T P Schultz, K Ragon, D D Nicholas
Whole-of-house protection from subterranean termite attack and damage after four years of field exposure
2008 - IRG/WP 08-10665
This study reports the condition of the whole-of-house termite protection test in tropical Australia after four years. The study was designed to provide maximum protection to whole-of-house timbers in a natural situation posing the highest hazard from subterranean termite populations. The houses were constructed either on concrete slabs or suspended floors using untreated and treated timber fram...
B M Ahmed (Shiday), J R J French, S R Przewloka, P Vinden, J Hann, C Y Adam
Evaluation and identification of extractives from Iranian walnut (Juglans regia L.) by GC/MS technique for protection of non-decay resistant species
2008 - IRG/WP 08-10670
The use of walnut extractives is interest as environment friendly wood preservatives in the wood preservation industry. In this study, organic solvents were used to remove extractives from Iranian walnut heartwood samples. The solvent was removed by rotoevaporation, and Identification of chemical compounds in the Walnut extractives was done by using GC/MS technique. The toxicity of various extract...
S K H Hashemi, D Parsapajouh, H Khademi Eslam
Amine Oxides for Use in Wood Protection: III. Penetration Aids for Wood
2008 - IRG/WP 08-30461
This paper highlights the advantages of using amine oxides as penetration aids for quaternary ammonium compounds (quats) and azoles in the area of wood protection. It was found that the use of amine oxide effectively enhanced the penetration and distribution of quats and azoles. For both southern yellow pine (SYP) and Douglas fir wood samples, the addition of cocodimethylamine oxide (Barlox® 12) ...
Xiao Jiang
Antifungal activity of essential oils against common wood degrading/decaying fungi
2008 - IRG/WP 08-30465
Despite the wide use of essential oils in pharmaceutical and food industry as antimicrobial agents, their use as wood preservatives has not been fully explored. In this study, 12 essential oils were screened in nutrient medium for their antifungal activity against 8 common mould, sapstain or decay fungi. Subsequently, one essential oil, eugenol was evaluated for decay resistance in an agar/wood ...
T Singh, C Chittenden
Wood protection, a tool for climate change mitigation?
2008 - IRG/WP 08-50257
In the context of global warming and the search for possible strategies to mitigate climate change, forest and forest products have important advantages. Sustainable management makes forest a carbon sink, wood products have the potential to be a carbon sink as well, and their low carbon intensity is a potential for reducing CO2 emissions by substitution to competing materials. After describing the...
G Deroubaix
A Comprehensive Review of Copper as a Biocide, with a Focus on Micronized Copper
2008 - IRG/WP 08-30486
This paper reviews the wood preservative biocide active ingredient copper and delvers into new and previously unpublished data regarding the new micronized formulations which are now in vogue and widespread use in N. America in all residential treated lumber markets. Included in this review is the overall discussion of copper containing formulations used for pressure treated wood used over the las...
M H Freeman, C R McIntyre
Opportunities and Needs with Treatments for the Protection of Plantation Species
2008 - IRG/WP 08-40438
The future of the wood treating industry lies increasingly on the treatment of wood derived from plantation forests. Plantation softwoods and hardwoods both provide significant opportunity for utilization coupled with protection technologies, but development programs will require much more focus and funding than is currently available. Manufacturing and treating of products from plantation fores...
A F Preston
Effect of different ASAs (alkenyl succinic anhydrides) on the treatment of biological protection of wood in use class 4
2008 - IRG/WP 08-40440
The alkenyl suscinic anhydrides (ASAs) used in this work are adducts resulting from the maleinization reaction of fatty acid alkyl esters. Various products with different alkyl groups were synthesized from rapeseed (Brassica napus) oil esters, rich in oleic acid. The liquids obtained showed a viscosity similar to that of vegetable oils and a brown color. When applied into wood, a thermal treatment...
C Vaca-Garcia, O Pignolet
Discovering anti-fungal agents in New Zealand native plants for use in wood protection
2009 - IRG/WP 09-10692
Extracts from Hinau (Elaeocarpus dentatus) leaves were tested in the laboratory for antifungal activity. In addition, the anatomical structure of the leaf was also examined by a combination of light and scanning electron microscopy. Chemical characterisation of the extracts and investigation into potential use of its components for wood protection is underway. A combination of light microscopy (...
C Rickard, T Singh, A Singh, R Newman
Antinomic natural self-protection mechanism in long-lasting woods: a case study with three tropical species from French Guiana
2009 - IRG/WP 09-10696
We demonstrate in this work through 3 examples that Amazonian trees may specialize long-lasting woods by means of at least to different approaches. Wallaba impregnates its wood with large amounts of weakly antifungal compounds acting in synergy, while tatajuba and louro vermelho woods are naturally impregnated with antifungal agents. Comparison of biological activities in vitro and concentrations ...
A Rodrigues, M Royer, N Amusant, J Beauchêne, G Herbette, V Eparvier, A Thibaut, L Salmen Espíndola, B Thibaut, D Stien
The Present Situation and Future Development in Quality Assurance for Wood Protection in China
2009 - IRG/WP 09-20418
This paper provides a comprehensive review of the quality assurance program for wood protection industry in China in term of guiding policies, standardization and implementation activities. The potential deficiencies with the existing practices regarding to the quality of wood protection products and suggestions for the further research and development directions to improve the system are also dis...
Kang Hua Cheng
Biological Treatment to Improve Wood Product Quality and Durability - Fifteen Years of Effort and Experience at FPInnovations-Forintek Division
2009 - IRG/WP 09-40444
Wood plays an important role in the world economy. However, wood is subject to attack from wood-degrading fungi and insects and durability and quality of wood products are becoming increasing concerns for consumers. Development of effective and low environmental impact technologies to improve wood product quality and durability will be required to address these concerns. The application of a bio...
Dian-Qing Yang
Which are the best painting methods for the beech wood products protection?
2009 - IRG/WP 09-40477
Beech wood (Fagus Sylvatica L.) is one of the most important species of the wood in Kosovo. About 33% of the trees in our country are beech wood. The wood products in Kosovo are from the beech wood. The color difference between red heart wood and white wood of the beech is significant. The main problem for the wood companies in our country is that they haven’t adequate protection against weather...
A Bajraktari
Future Directions in Wood and Engineered Wood Products Research in China
2009 - IRG/WP 09-40479
This paper has summarized the research advance of basic wood science and engineered wood products in the 20th century in China and introduced the research advance and directions of basic wood science, engineered wood products and the extensive researches based on the basic wood science such as wood chemical rheology, wood fractal analysis, wood environmental science and nano-wood material etc in t...
Guangjie Zhao