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Effects of gluing conditions for formaldehyde-free tannin adhesive on the oriented bamboo scrimber board properties Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-04-11 Chia-Ju Lee, Tzu-Cheng Chang, Min-Jay Chung
The formaldehyde-free tannin adhesive (AcBTanGlu) was synthesized by bark extractives of Acacia confusa and hexamethylenetetramine, and was further used for production of the oriented bamboo scrimber board (OBSB) in this study. When Acacia bark extract tannins are mixed with 2% hexamethylenetetramine, the OBSB pressed at a hot pressing temperature of 150 °C for 15 min can obtain the maximum mechanical
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Characterisation of hardwood fibres used for wood fibre insulation boards (WFIB) Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-04-06 Arne A. P. Imken, Burkhard Plinke, Carsten Mai
Wood fibre insulation boards (WFIB) are typically made from softwood fibres. However, due to the rapid decrease in softwood stands in Germany, the industry will be forced to adapt to the wood market. Therefore, alternative approaches for the substitution of softwood with hardwood will be needed in the fibre industry. The objective of this paper is to address the characterisation of hardwood fibres
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Integration of market aspects into material development: approach and exemplification for a wood composite Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-04-06 Marilene Fuhrmann, Peter Schwarzbauer, Franziska Hesser
Due to a variety of applications and complex requirements in specific fields of use, the number of different materials is increasing. Thereof, the majority fails at the stage of market introduction, because the focus of material development is mostly on technical aspects, while market aspects are often neglected. One possible way of market introduction is material substitution. Thereby, requirements
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Influence of provenance on physical and mechanical properties of Angelim-pedra ( Hymenolobium petraeum Ducke.) wood species Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-30 Julia Naves Teixeira, Anderson Renato Vobornik Wolenski, Vinicius Borges de Moura Aquino, Tulio Hallak Panzera, Diogo Aparecido Lopes Silva, Cristiane Inácio Campos, Sérgio Augusto Mello Silva, Francisco Antonio Rocco Lahr, André Luis Christoforo
This research aims to investigate, with the aid of the Brazilian standard NBR 7190, analysis of variance (ANOVA—5% significance) and the regrouping bootstrap technique, the influence of the provenance regions Bonfim, Mucajaí and Claudia on the physical and mechanical properties (twenty properties and 720 determinations) of Angelim-pedra (Hymenolobium petraeum Ducke.) and to assess the possibility of
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Parametric study of a yellow birch surface impregnation process Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-29 Mariana Frias, Pierre Blanchet, André Bégin-Drolet, Juliette Triquet, Véronic Landry
Wood is a renewable resource that has been used as a material in appearance products for years. Despite its acceptable mechanical resistance, different modification processes were developed to enhance wood’s hardness and make it an even more durable material. Impregnating wood pores with monomers under vacuum-pressure cycle is a common method for that purpose. However, most implemented processes are
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Quality assessment of pellets and briquettes made from glued wood waste Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-29 Emanuele Cesprini, Rosa Greco, Valerio Causin, Tiziana Urso, Raffaele Cavalli, Michela Zanetti
In accordance with sustainable economic and social development, Europe supports the use of energy from renewable sources to decrease the use of fossil fuels. Among renewable energy sources, wood, especially production wood waste from the supply chain, represents an exploitable source in line with a circular economy development. In this context, processing of residues produced by wood companies becomes
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Effect of temperature on color and chemical composition of poplar powder compacts during warm-press forming Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-27 Zhizhong Long, Liqiang Zhang, Qingding Wu, Zhili Tan, Pengcheng Guo
The color parameters of untreated wood powder and wood powder after warm-press forming were measured according to standard colorimetric systems. The composition of the sample was tested by wet chemistry technique. The chemical compositions of the sample after warm-press forming were analyzed by using X-ray photoelectron spectroscopy (XPS) and UV–Vis. The results showed that as the forming temperature
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Characteristics of Pleurotus sp. TD36 and its ability to reduce wood extractives in pretreatment for pulping Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-27 Phan Thi Hong Thao, Nguyen Thi Hong Lien, Nguyen Van Hieu, Nguyen Vu Mai Linh, Dang Thi Nhung, Tran Thi Huong, Cao Van Son
Lipophilic extractives of wood cause pitch deposition during pulp and paper production, leading to serious economic losses and environmental pollution. Natural seasoning of wood material before pulping can reduce wood extractives, but there is no control of the pulp yield and quality. Pretreatment of the wood chips with selected fungi is regarded as better controlled seasoning with effective removal
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Meta‐analysis of anti‐swelling efficiency (ASE) of heat‐treated wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-23 Tianyi Zhan, Zhiting Liu, Hui Peng, Jiali Jiang, Yaoli Zhang, Jianxiong Lyu
The anti-swelling efficiency (ASE) of heat-treated wood was investigated by meta-analysis. The effects of material- and technology-related factors were quantified. The results showed that ASE after heat treatment was strongly dependent on the growth information of wood (e.g., its climate location, cultivation method, hardwood or softwood, and heartwood or sapwood) and on the technology-related factors
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Improving fire retardancy of unheated and heat-treated fir wood by nano-sepiolite Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-22 Hamid R. Taghiyari, Mehdi Tajvidi, Abolfazl Soltani, Ayoub Esmailpour, Goodarz Khodadoosti, Hossein Jafarzadeh, Holger Militz, Antonios N. Papadopoulos
The effects of nano-sepiolite (NS) on fire properties of unheated and heat-treated fir wood were studied using a newly developed apparatus. Separate sets of specimens were prepared to be painted with plain acrylic-latex paint and NS-treated paint as well. Heat treatment of specimens was carried out in a laboratory oven at 185 ºC and under atmospheric air pressure. Six fire properties were measured
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Discrimination of “Louros” wood from the Brazilian Amazon by near-infrared spectroscopy and machine learning techniques Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-22 Joielan Xipaia dos Santos, Helena Cristina Vieira, Deivison Venicio Souza, Marlon Costa de Menezes, Graciela Inés Bolzon de Muñiz, Patrícia Soffiatti, Silvana Nisgoski
The integration of near infrared spectroscopy (NIR) with machine learning techniques can be an adequate method for discrimination of wood species with commercial value. The aim of this study was to discriminate wood samples marketed as “Louros” from the Brazilian Amazon based on near-infrared spectroscopy and machine learning techniques. Samples of louro vermelho, louro branco, louro pimenta, louro
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Monitoring seasonal transpiration drying of loblolly and slash pine with time domain reflectometry Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-22 R. B. White, Laurence R. Schimleck, F. Antony, F. Belart, R. F. Daniels
The moisture content (MC) of felled trees has a direct impact on transportation costs and efficiency. Transpirational (or field) drying of fallen trees, to reduce MC and subsequently improve the economics of transport can be employed; however, an understanding of seasonal drying rates is required. Typically load cells have been used to track moisture changes in bundles of logs but where access is limited
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Swelling kinetics of thermally modified wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-20 Petr Čermák, Pavlína Suchomelová, Dominik Hess
The swelling kinetics of native and thermally modified wood was studied. Norway spruce, Scots pine, European beech, and English oak specimens of dimensions 20 × 20 × 10 mm were modified at 180, 200, and 220 °C. The swelling kinetics of the specimens was monitored during 24 h of water immersion. The results are presented as relative swelling rate, and values for maximal radial and tangential swelling
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Comparative investigation into the interfacial adhesion of plywood prepared by air spray atomization and roller coating Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-16 Yizhong Cao, Wei Zhang, Pei Yang, Xinhui Li, Tao Zhang, Weimin Chen, Siqun Wang, Xiaoyan Zhou
Plasma treatment combined with air spray atomization (ASA) can improve the resin spread rate while manufacturing plywood and reduce the manufacturing cost and consumption of chemicals. To provide a mechanistic understanding of the interfacial adhesion of plywood with reduced resin spread rate, plywood prepared by ASA and roller coating (RC) was compared. The obtained results suggest that atomized resin
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Bark of Astronium lecointei Ducke trees from the Amazon: chemical and structural characterization Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-15 Graciene S. Mota, Elesandra S. Araujo, Mário Lorenço, Juliana Livian L. de Abreu, Claúdia L. S. de O. Mori, Cassiana A. Ferreira, Marcela G. Silva, Fábio Akira Mori, Gracialda C. Ferreira
The bark of the Astronium lecointei Ducke tree, a species native to the Brazilian Amazon, was characterized in relation to anatomical and chemical features. The chemical composition was studied for the first time. The bark of A. lecointei has a periderm with thick phellem layer and the phloem has abundant sieve tube members and a conspicuous presence of sclerified nodules of sclereids. The mean chemical
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Reactivity assessment of charcoal for use in silicon production Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-14 D. C. Ramos, A. C. O. Carneiro, M. Tangstad, B. L. C. Pereira, R. Saadieh, A. C. Oliveira, B. R. Vital
As charcoal is used in the silicon metal process, reactivity towards SiO is one of the most important properties that has strong effects on silicon recovery. The purpose of this study was to analyze anatomical properties of wood and charcoal, define a procedure to express the SiO reactivity in a simpler and more cost-efficient manner and indicate one or more clones of Eucalyptus with the greatest potential
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Investigation of the wet strength and handle properties of wood pulp-based wetlaid/spunlace materials with different moisture contents Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-13 Yinjiang Zhang, Kangjie Guo, Haihua Zhan, Zhuanyong Zhou, Jianhan Hong, Xu Meng
Wood pulp-based wetlaid/spunlace (wetlace) materials have become increasingly popular in the field of disposable personal hygiene moist wipes. To achieve excellent products, materials with different short-cut fibers and proportions were fabricated, and the effects of moisture contents on the wet strength and handle properties of the materials were firstly investigated. The results suggest that the
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Influence of moisture content on the contact angle and surface tension measured on birch wood surfaces Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-12 Rami Benkreif, Fatima Zohra Brahmia, Csilla Csiha
Surface tension of solid wood surfaces affects the wettability and thus the adhesion of various adhesives and wood coatings. By measuring the contact angle of the wood, the surface tension can be calculated based on the Young-Dupré equation. Several publications have reported on contact angle measured with different test liquids, under different conditions. Results can only be compared if the test
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Constitutive relation models of bamboo scrimber under uniaxial loading along the fibre direction Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-12 Wen Liu, Mingxi Liu, Jiankun Huang, Ying Yu
Bamboo scrimber is a unidirectional natural fibrous composite material. It has a broad prospect to be used as a construction material due to its outstanding physical and mechanical properties, especially the mechanical properties along the fibre direction. This study performed the uniaxial longitudinal tensile and compressive tests on bamboo scrimber and presented two stress–strain constitutive models
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Compression and low velocity impact response of wood-based sandwich panels with auxetic lattice core Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-11 Jerzy Smardzewski, Michał Maslej, Krzysztof W. Wojciechowski
The research determined the resistance to compression and low velocity impact of wood-based sandwich panels, the face sheet made of high-density fiber board, and high pressure laminate, while its auxetic lattice core was made by 3D printing using LayWood bio-composite filament. The core's auxetic property (i.e. exhibiting negative Poisson's ratio) was observed within the planes parallel to the facings
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Influence of wood pretreatment and fly ash particle size on the performance of geopolymer wood composite Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-10 Bright Asante, Goran Schmidt, Ronaldo Teixeira, Andreas Krause, Holmer Savastano Junior
In search for greener building materials, geopolymer wood composites (GWC) were produced through alkali activation of fly ash, using pine and eucalypt wood particles. The study examined the influence of grinding fly ash, wood species and hot water treatment of wood particles on the physical properties and specific compressive strength of GWC before and after 200 cycles of soaking and drying. Ash-grinding
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An image processing algorithm for detection and analysis of slicing checks Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-10 Victor Grubîi, Jimmy Johansson
In this paper, a new method of measuring slicing checks for flat-sliced veneers was evaluated. The method is based on image analysis of veneer cross-sections, having highlighted the slicing checks using surface staining. The segmentation of the checks consists of global thresholding followed by some morphological operations. The outputs of the algorithm are check depth ratio and check frequency. The
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Furfurylation of wood from fast-growing tropical species to enhance their resistance to subterranean termite Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-09 Yusuf Sudo Hadi, Desy Mulyosari, Elis Nina Herliyana, Gustan Pari, Wa Ode Muliastuty Arsyad, Imam Busyra Abdillah, Philippe Gérardin
The purpose of this study was to use furfurylation to enhance the resistance of wood to subterranean termite attack. Wood samples were obtained from four fast-growing tropical wood species, namely sengon (Falcataria moluccana), jabon (Anthocephalus cadamba), mangium (Acacia mangium), and pine (Pinus merkusii), felled at a short cutting rotation. Specimens were impregnated with furfuryl alcohol (FA)
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Changes in cell wall components and hygroscopic properties of Pinus radiata caused by heat treatment Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-08 Alberto García-Iruela, Luis García Esteban, Francisco García Fernández, Paloma de Palacios, Alejandro B. Rodriguez-Navarro, Raquel Martín-Sampedro, María Eugenia Eugenio
After thermal modification at 210 °C using the Thermowood method, changes in Pinus radiata D. Don wood cell wall components and hygroscopicity were studied for subsequent comparison with recently felled wood of the same species in samples from the same region of provenance (Basque Country, Spain). To this end, samples were characterised by sorption isotherms at 15, 35 and 50 °C fitted to the Guggenheim–Anderson–de
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Effect of pre-mechanical compression on free water removal, drying collapses and associated internal voids of oil palm wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-06 Choosak Rittiphet, Kamolwun Dumyang, Nirundorn Matan
To prevent defects caused by drying collapse, transverse pre-mechanical compression with lateral restraint of green oil palm wood (OPW) before kiln-drying was performed. OPW specimens were divided according to specific gravity into low density (LD 0.22 ± 0.05) and medium-density (MD 0.33 ± 0.02) groups. Effects of compressive strain (0–0.65) and strain rate (0.01–1.0/min) on moisture removal and wood
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Influence of lignin on wood carbonization and charcoal properties of Miombo woodland native species Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-03 Jonas Massuque, Maira Reis De Assis, Breno Assis Loureiro, Custódio Efraim Matavel, Paulo Fernando Trugilho
The majority of the Mozambican population use charcoal from natural forests to satisfy their domestic energy needs. Nevertheless, few studies have been done aiming at assessing the quality of wood used for charcoal production and its relationship with the sustainable use of natural forests. Most of the studies on charcoal production and marketing in Mozambique are aimed at understanding its contribution
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Generalized cutting force model for peripheral milling of wood, based on the effect of density, uncut chip cross section, grain orientation and tool helix angle Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-03-03 R. Curti, B. Marcon, L. Denaud, M. Togni, R. Furferi, G. Goli
The influence of the grain angle on the cutting force when milling wood is not yet detailed, apart from particular cases (end-grain, parallel to the grain, or in some rare cases 45°-cut). Thus, setting-up wood machining operations with complex paths still relies mainly on the experience of the operators because of the lack of scientific knowledge easily transferable to the industry. The aim of the
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Purification of tall oil fatty acids by removing of stilbenes Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-16 Andrey N. Evdokimov, Alexander V. Kurzin, Larisa M. Popova, Victorija B. Franchuk
The composition of tall oil fatty acids includes rosin acids and unsaponifiable substances as impurities. The latter include stilbenes. The total content of stilbenes in tall oil and fatty acids can reach 1%. The presence of stilbenes contributes to the deterioration of fatty acids color during storage and production of some derivatives. The existing methods for removing stilbenes are based on the
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Experimental tests of PVD AlCrN-coated planer knives on planing Scots pine ( Pinus sylvestris L.) under industrial conditions Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-16 Krzysztof Nadolny, Wojciech Kapłonek, Marzena Sutowska, Paweł Sutowski, Piotr Myśliński, Adam Gilewicz, Bogdan Warcholiński
Raw pine wood processing and especially its mechanical processing constitute a significant share among technological operations leading to obtaining a finished product. Stable implementation of machining operations, ensuring long-term repeatable processing results depends on many factors, such as quality and invariability of raw material, technical condition of technological equipment, adopted parameters
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A simple, effective and inhibitor‐free thermal treatment for enhancing mold‐proof property of bamboo scrimber Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-13 Kai Yang, Xingong Li, Yiqiang Wu, Xia Zheng
The bamboo scrimber has been widely used in building materials and interior decoration. However, the bamboo scrimber is very vulnerable to mold due to the rich nutrients in bamboo parenchyma cells. In this study, a thermal treatment with saturated vapor was employed to improve the mold-proof property of bamboo scrimber. Four kinds of mold (Botryodiplodia theobromae, Aspergillus niger, Penicillium citrinum
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Tips on the variability of BBQ charcoal characteristics to assist consumers in product choice Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-12 Ananias Francisco Dias Júnior, Carlos Rogério Andrade, Artur Queiroz Lana, Álison Moreira da Silva, José Otávio Brito, Marcos Milan
Charcoal is a widely used barbecue product that comes into direct and indirect contact with the foods ingested. Thus, it must have adequate technical characteristics so that its consumption is not harmful to the environment and human beings. This study aimed to investigate the quality of charcoal for use in domestic barbecue, relating different brands and commercial categories. Products from different
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Correction to: A review of the long-term effects of humidity on the mechanical properties of wood and wood-based products Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-11 Juan Wang, Xiaoqing Cao, Haojin Liu
In the original publication of the article
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Microencapsulation of formaldehyde scavenger agent and its application to veneered panels Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-11 Yu Liu, Xiang Qin, Xiaodong Zhu, Lin Wu, Yixin Xu, Kejian Huang, Jiaqi Huang, Yi Chen
Formaldehyde scavenger agent can effectively control formaldehyde emissions from wood-based panels, but the existing formaldehyde scavenger agent can only work in the short term. For the purpose of long-term control of formaldehyde emissions from wood-based panels, microencapsulation of formaldehyde scavenger agent was synthesized in this paper. The effect of the emulsifying agent and the core to shell
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Surface color changes of oak ( Quercus alba L.) treated with dopamine and iron ion compounds by acceleration of temperature–humidity condition Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-11 Ru Liu, Hongyun Qiu, Jianfeng Xu, Xiaoyan Li, Ling Long
To change the surface color of oak (Quercus alba L.) to dark and grey, the water-soluble iron ion compounded dopamine solution was applied and accelerated in temperature–humidity condition. The colorimetric parameters before and after treatment were measured and X-ray photoelectron spectra were carried out for a further understanding. The results showed that iron ions and the compounds can significantly
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Estimating mechanical properties of clear wood from ten‐year‐old Melia azedarach trees using the stress wave method Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-11 Doan Van Duong, Dan Ridley-Ellis
The objective of this study was to examine the potential of stress wave velocity (SWV) as a rapid and non-destructive method to estimate the mechanical properties of Melia azedarach wood. The SWV, dynamic modulus of elasticity (MOEd), modulus of elasticity (MOE), modulus of rupture (MOR, bending strength) and density were determined on ninety 20 ⋅ 20 ⋅ 320 mm clear wood specimens, obtained from stems
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Bark proportion of Scots pine industrial wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-09 Ferréol Berendt, Erik Pegel, Lubomir Blasko, Tobias Cremer
Bark characteristics are not only used in the forest-wood supply chain, for example to calculate standing volumes, but also to transform wood volumes and masses. In this study, bark thickness, bark volume and bark mass were analyzed on the basis of 150 Scots pine discs, with a mean diameter of 13 cm. The mean double bark thickness was 3.02 mm, the mean bark volume proportion was 5.6% and mean bark
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Analysis of the capability of cork and cork agglomerates to absorb multiple compressive quasi-static loading cycles Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-08 Ramon Miralbes Buil, David Ranz Angulo, Jan Ivens
Despite the higher specific mechanical properties and the lower density of polymeric foams, these materials present cumulative damage behaviour that implies in the second and successive impacts, their mechanical properties decrease drastically. However, cork and cork agglomerates have the ability to absorb multiple impacts so they could be a more suitable material in some products, such as bumpers
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Preliminary evaluation of a density-based lumber grading method for hem-fir CLT manufacturing Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-02-01 Hao Li, Libin Wang, Brad Jianhe Wang, Peixing Wei, Wentao Yu, Zhongqiang Fan, Guanben Du
In the manufacturing process of cross-laminated timber (CLT), lumber selection and grading are essential steps for the quality control of CLT. In this work, a density-based lumber grading method was preliminarily evaluated for hem-fir CLT manufacturing. Based on the univariate regression model of hem-fir lumber modulus of elasticity (MOE) and its density, a density-based grading model was developed
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Individual layer fabrication (ILF): a novel approach to additive manufacturing by the use of wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-28 Klaudius Henke, Daniel Talke, Frauke Bunzel, Birger Buschmann, Carsten Asshoff
A novel process named ‘individual layer fabrication (ILF)’ is presented, in which objects are built up by laminating individually contoured wood-based panels. However, contrary to the well-known process of ‘laminated object manufacturing (LOM)’, in ILF, the individual panels are not shaped by a subtractive process but additively by selective binding of wooden particles. The particles are spread as
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On the tribological properties of extremely different wood materials Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-22 K. Friedrich, E. I. Akpan, B. Wetzel
Three different woods (lignum vitae; black fiber palm; spruce) were investigated regarding their friction and wear properties under abrasion and sliding. For the abrasive wear against silicon carbide paper, the palm wood gave the lowest removal of material, especially under an orientation of the black fibers normal to the contact region (on R–T-plane in R-direction). At the same time, this material
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Influence of insertion angle, diameter and thread on embedment properties of self-tapping screws Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-19 Rafid Khan, Jan Niederwestberg, Ying-Hei Chui
In laterally loaded connections, inclined installation of self-tapping screws (STS) allows for axial load transfer and significantly higher connection capacity and stiffness. In such a configuration, both the withdrawal and embedment resistances of the screw contribute to the overall load-carrying capacity and stiffness. To account for the contribution of the embedment component, embedment strength
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Investigation of the water vapor sorption behavior of bamboo fibers with different sizes Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-18 Jing Yuan, Qi Chen, Benhua Fei
Recently, the demand for sustainable materials has given rise to new research interest in the intrinsic properties and applications of bamboo and its derivatives. Hygroscopicity plays an important role in the application of bamboo, and it is known that the size of the material particles affects the hygroscopicity of the material. To further understand the effect of the particle size, the bamboo fiber
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Cyclic response of insulated steel angle brackets used for cross-laminated timber connections Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-10 Meta Kržan, Boris Azinović
In cross-laminated timber (CLT) buildings, in order to reduce the disturbing transmission of sound over the flanking parts, special insulation layers are used between the CLT walls and slabs, together with insulated angle-bracket connections. However, the influence of such CLT connections and insulation layers on the seismic resistance of CLT structures has not yet been studied. In this paper, experimental
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Incorporation of chlorothalonil into polylactic acid-co-polyethylene glycol nanoparticles for rubberwood preservation Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-08 Teck-Jin Teng, Mohamad Nasir Mat Arip, Eng-Poh Ng, Hooi-Ling Lee
Chlorothalonil (CTL), an organic biocide, was successfully incorporated into polylactic acid-co-polyethylene glycol (PLA-PEG) nanoparticles via nanoprecipitation method. The hydrodynamic particle size and CTL loading efficiency of synthesized CTL-PLA-PEG nanoparticles were 12.8 ± 0.2 nm and 65.9 ± 0.4%, respectively. Rubberwood (Hevea brasiliensis) samples were treated with 0.025% w/v aqueous suspension
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Mechanical performances of finger jointed cross laminated timber (CLT) Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-04 Kohei Komatsu, Makoto Nakatani, Toru Nakahara, Kenji Komatsu, Yasunobu Noda
Based on the idea of first producing small-size CLT panels and afterward connecting them using finger joints to make larger CLT panels, finger-jointed CLT test specimens were fabricated by setting experimental parameters such as the kind of finger joint (large or normal), the combination of finger joint strength (strong–strong, or weak–weak) and the number of layers, and ply (3L3P, 5L5P, and 5L7P)
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Influence of radial force and rake angle on ring debarking efficiency of frozen and unfrozen black spruce logs Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 W. Kharrat, R. E. Hernández, C. B. Cáceres, C. Blais
The effects of the radial force applied by a ring tip debarker and the rake angle on debarking quality of frozen and unfrozen black spruce logs were studied. A one-arm ring debarker prototype was built, which controlled the radial force, the rake angle, and the cutting and feed speeds. The experiment consisted of debarking logs using three radial forces for each temperature (− 20 °C and + 20 °C) with
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Investigating the suitability of fly ash/metakaolin-based geopolymers reinforced with South African alien invasive wood and sugarcane bagasse residues for use in outdoor conditions Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 H. O. Olayiwola, S. O. Amiandamhen, M. Meincken, L. Tyhoda
The prevailing approach of total clearing to contain the spread of invasive plants (IP) in South Africa is generating enormous lignocellulosic wastes. This study examined the possibility of utilizing these wastes in the production of geopolymer composites for use in outdoor environments. Untreated wood particles from Acacia mearnsii and A. longifolia, as well as sugarcane bagasse residues, were incorporated
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Effects of cryogenic temperature on some mechanical properties of beech ( Fagus orientalis Lipsky ) wood Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 Osman Emre Özkan
It is important to know the changes in the mechanical properties of wood during freezing for engineering calculations of the wood material to be used in cold environments. Although this is important, the mechanical properties of wood at temperatures below − 100 °C have rarely been studied. In this study, the effects of cryogenic temperature (− 196 °C) on the bending strength, modulus of elasticity
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Dimensional stabilisation of Scots pine ( Pinus sylvestris L.) sapwood by reaction with maleic anhydride and sodium hypophosphite Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 Injeong Kim, Olov Karlsson, Dennis Jones, George Mantanis, Dick Sandberg
Wood has the ability to absorb and desorb moisture, which can affect its dimensional size when in use. Limiting this can provide products with greater shape stability and less stresses on external coatings. One method that has been investigated for achieving this has been through chemical modification. In this work, the dimensional stabilisation imparted to Scots pine sapwood by chemical modification
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Mass loss kinetics of thermally modified wood species as a time–temperature function Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 Petr Čermák, Dominik Hess, Pavlína Suchomelová
The mass loss kinetics of thermally modified wood species was analyzed as a time–temperature function. European beech (Fagus sylvatica L.), English oak (Quercus robur L.), Norwegian spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.) wood specimens of dimensions 20 × 20 × 10 mm3 were thermally modified at 140 °C, 160 °C, 180 °C, 200 °C and 220 °C for 1–6 h using atmospheric pressure
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Core and panel types affect the mechanical properties and failure modes of the wood-based XX-type lattice sandwich structure Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 Tengteng Zheng, Shuai Li, Qingyuan Xu, Yingcheng Hu
Composite lattice sandwich structures have the characteristics of light weight and high strength. In this study, a wood-based XX-type lattice sandwich structure was fabricated by a type of insertion-glue method, using wood-plastic composites (WPC) and oriented strand boards (OSB) as panels, and birch and glass-fiber reinforced plastic (GFRP) as cores. The mechanical properties and failure modes of
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Compression impact behaviour of agglomerated cork at intermediate strain rates Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-03 Arturo Gómez, Sonia Sanchez-Saez, Enrique Barbero
This work analyses the influence of intermediate strain rates, between 25 and 75 s−1, on compressive behaviour of agglomerated cork. Quasi-static and dynamic compressive tests on an agglomerated cork with two different densities were carried out. This work complements previous research focused on higher strain rates. The influence of strain rate on less studied properties as densification strain or
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Characteristics of beech bark and its effect on properties of UF adhesive and on bonding strength and formaldehyde emission of plywood panels Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-02 Pavlo Bekhta, Ján Sedliačik, Gregory Noshchenko, František Kačík, Nataliya Bekhta
This research examined beech bark from a plywood manufacturer to determine its effectiveness in reducing wastes, protecting the ecological environment, and producing more eco-friendly wood-based materials. Beech bark was characterized and evaluated as an adhesive filler in plywood manufacturing, and the effects on the bonding quality and the formaldehyde emission of the plywood panels were examined
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Surface creation and cutting characteristics during sugar maple wood scratching with spherical cone grit Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-02 Jian Zhang, Ping Sun, Bin Luo, Li Li, Hongguang Liu
A series of single-grit cutting tests were performed with spherical cone tools on sugar maple (Acer saccharum) wood to investigate its surface creation and cutting behavior. The tools with apex angles 2\(\alpha\) = 84\(^\circ\) and 2\(\alpha\)= 108\(^\circ\) were selected to clarify the effect of negative rake angles. It was found that there was no discernable pile-up on both sides of the scratches
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Assessment of sound quality: Australian native hardwood species for guitar fretboard production Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-02 Maryam Shirmohammadi, Adam Faircloth, Adam Redman
Rosewood species are used around the world in musical instrument component manufacture, most commonly for the use as the guitar fretboard. Due to the overuse of these species, rosewood has been declared an endangered wood necessitating alternatives to be sourced with similar desirable characteristics. Dynamic testing was performed on Australian high-density hardwood species with a density range of
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Nondestructive assessment of cross-laminated timber using non-contact transverse vibration and ultrasonic testing Eur. J. Wood Prod. (IF 1.542) Pub Date : 2021-01-01 Lu Zhang, Alan Tiemann, Tonghao Zhang, Tom Gauthier, Kevin Hsu, Mustafa Mahamid, P. K. Moniruzzaman, Didem Ozevin
Cross-laminated timber (CLT) is a new generation of engineered wood product developed initially in Europe and has been used in North America for various applications. CLT is composed of at least three layers of lumber boards stacked crosswise in orthogonally alternating orientation to the adjacent layers. CLT has been gaining popularity and increasing application areas in the construction industry
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Parameter identification for a point-supported cross laminated timber slab based on experimental and numerical modal analysis Eur. J. Wood Prod. (IF 1.542) Pub Date : 2020-12-10 Michael Kawrza, Thomas Furtmüller, Christoph Adam, Roland Maderebner
In this paper, the dynamic properties of a point-supported cross-laminated timber slab are studied in order to determine the elastic material parameters on this basis. A detailed experimental modal analysis of the slab with dimensions 16.0 m x 11.0 m is performed, and seven modes including the natural frequencies, damping ratios and mode shape components at 651 sensor positions are identified. The
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The role of lignin in wood working processes using elevated temperatures: an abbreviated literature survey Eur. J. Wood Prod. (IF 1.542) Pub Date : 2020-12-04 Zoltán Börcsök, Zoltán Pásztory
The lignin, cellulose and hemicelluloses in wood are polymers that behave similarly to the artificial polymers and are bonded together in wood. Lignin differs from the other two substances by its highly branched, amorphous, three-dimensional structure. Under appropriate conditions, the moist lignin incorporated in the wood softens at about 100 °C and allows the molecules of it to deform in the cell
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Viscoelastic properties of thermo-hydro-mechanically treated beech ( Fagus sylvatica L.) determined using dynamic mechanical analysis Eur. J. Wood Prod. (IF 1.542) Pub Date : 2020-11-28 Andreja Kutnar, Jane O’Dell, Christopher Hunt, Charles Frihart, Frederick Kamke, Matthew Schwarzkopf
Thermo-hydro-mechanical (THM) processing can improve the intrinsic properties of wood, produce new materials, and give desired form and function to new applications. THM treatments change the mechanical properties of wood and may change its viscoelastic properties as well. Therefore, the objective of this study was to assess the viscoelastic properties of THM-treated wood at several humidity and load
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Forecasting bankruptcy in the wood industry Eur. J. Wood Prod. (IF 1.542) Pub Date : 2020-11-26 Tomasz Noga, Krzysztof Adamowicz
The assessment of a company’s financial condition is an effective tool, which supports the management system. Nowadays a number of models are available, most often multi-branch ones, which are able to predict the financial situation of an enterprise. Models solely intended for just one line of business are a rarity. As far as the wood sector is concerned, no homogenous model suited to the sector has