Results 211 to 220 of about 4,419 (254)

Boron impregnation treatment of Eucalyptus grandis wood

Bioresource Technology, 2007
Eucalyptus grandis is suitable for small timber purposes, but its wood is reported to be non-durable and difficult to treat. Boron compounds being diffusible, and the vacuum-pressure impregnation (VPI) method being more suitable for industrial-scale treatment, the possibility of boron impregnation of partially dry to green timber was investigated using
T K, Dhamodaran, R, Gnanaharan
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The influence of the impregnating chemicals on the bonding strength of impregnated wood materials

Journal of Applied Polymer Science, 2007
AbstractIn this study, it is aimed to determine the bonding strength of white oak (Quercus petreae L.) and chestnut (Castanea sativa Mill.) woods impregnated with borax and zinc chloride. Within this purpose, the experimental samples were bonded with Polyvinyl‐acetate and polyurethane based Desmodur‐VTKA (D‐VTKA) adhesives according to BS EN 205 ...
Okcu, OKTAY, Oezcifci, Ayhan
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Modeling of Alkali Impregnation of Eucalyptus Wood

Industrial & Engineering Chemistry Research, 2011
In wood pulping processes, the quality of the impregnation stage has a significant influence on the final pulp properties. In this work, a refined version of a previously published model is used to analyze this operation stage. For liquor containing NaOH and Na 2 S, the study considers the reaction of wood acetyls and acidic groups.
Maria C. Inalbon, Miguel C. Mussati, Paulina Mocchiutti, Miguel A. Zanuttini   +3 more
openaire   +1 more source

Simulation of Wood Impregnation with Oligomer Solutions

Russian Journal of Applied Chemistry, 2005
An adequate model is developed for the impregnant distribution along the fibers of a small-dimension crosscut end under conditions of isothermal diffusion impregnation with oligomer solutions.
S. S. Glazkov, I. P. Biryukova
openaire   +1 more source

Impregnating Compositions for Lamination of Wood Materials

Polymer Science, Series D, 2020
The technology for producing SP-250 modified melamine–formaldehyde resin is presented and its physicochemical characteristics are determined. Using SP-250 modified resin and several domestic technological additives instead of imported additives, formulations of impregnating compositions for laminating chipboards were developed.
V. E. Tsvetkov, O. P. Machneva
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Dimensionally stable and durable wood by lignin impregnation

International Journal of Biological Macromolecules
Cracking, warping, and decaying stemming from wood's poor dimensional stability and durability are the most annoying issues of natural wood. There is an urgent need to address these issues, of which, sustainable and green chemical treatments are favorably welcomed.
Weiqi, Leng, Jing, Wang, Sheng, He, Xiang, Wang, Shengcheng, Zhai, Wanzhao, Li, Haiyang, Quan, Buyun, Lu, Jiangtao, Shi, Islam, Hafez, Xuefeng, Zhang   +10 more
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IMPREGNATION OF WOOD COMPOSITES

2011
Son yıllarda kullanımında hızlı artışlar gözlenen odun kompozitlerinin kullanım yerlerine bağlı olarak (yonga ve lif levha, tabakalı ve lamine ağaç malzemeler vb.) odun tahripçisi organizmalara karsı koruyucu kimyasal maddelerle emprenye edilmesi gerekmektedir.
GEZER, Engin Derya, YILDIZ, Ümit Cafer, TEMİZ, Ali, YILDIZ, Sibel   +3 more
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RESEARCH OF THRU IMPREGNATION OF LARCH WOOD

Proceedings of the International Forest Forum, youth section "Adaptation of forestry to climate change: nature-oriented solutions and digitalization. Forestry – 2024»
Larch wood is available as a resource, so it is important to solve the problem of its cracking. The proposed modification method to prevent cracking of wooden larch by pre-welding and preparing impregnation from the end under pressure with 30% aqueous solution of urea.
Valeriy Malikov, Vladimir Shamaev, A. Russu   +2 more
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Conveyor Belt Pressure Impregnation of Wood

2017
The Unitreat or Conveyor belt treatment process utilizes residual vacuum trapped in the wood to improve preservative distribution, once the treated commodity has been removed from the treatment plant (Vinden 2003). Unlike traditional industrial wood treatment technologies, (Bethel, Lowry and Rueping processes) limited quantities of preservative are ...
Peter Vinden, Grigori Torgovnikov, Anil K. Sethy   +2 more
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Impregnation and Drying Schedule of Eucalyptus Wood

Applied Mechanics and Materials, 2011
The aim of this research was to define a rapid and simple test that would indicate the probable performance of a pretreated wood species in a hot-press drying process and the kiln schedule. The drying rate (mass/time) and the remaining mass of water were measured at different moisture intervals.
Guo Feng Wu, Qian Lang, Shu Ping Song, Jun Wen Pu   +3 more
openaire   +1 more source