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Journal articles on the topic 'Wood stability'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Mubarok, Mahdi, Elham Azadeh, Firmin Obounou Akong, Stéphane Dumarçay, Philippe Gérardin, and Christine Gérardin-Charbonnier. "Effect of Tannins Addition on Thermal Stability of Furfurylated Wood." Polymers 15, no. 9 (2023): 2044. http://dx.doi.org/10.3390/polym15092044.

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This article presents the effect of the addition of condensed tannins, used as a reticulation agent, on the polymerization of furfuryl alcohol during wood furfurylation, as well as the effect of these condensed tannins on the thermal stability of modified wood. Three kinds of dicarboxylic acids (adipic acid, succinic acid, and tartaric acid), as well as glyoxal, used as model of a wood reticulation agent, were used to catalyze the polymerization of furfuryl alcohol or tannin-furfuryl alcohol solutions. Impregnation of furfuryl alcohol or tannin-furfuryl alcohol solution into the wood, followed

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2

Pinchevska, O. O., and D. L. Zavialov. "Properties of new thermal insulation material from low-quality pine wood." Ukrainian Journal of Forest and Wood Science 11, no. 2 (2020): 91–100. http://dx.doi.org/10.31548/forest2020.02.091.

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Recently growing number of low quality wood in Ukraine, damaged by fungal sap color, stem rot leads to finding ways to use it. Today this wood is used mainly for the manufacture of wood-fuels facility in industrial and municipal energy. A possible way to use it is making insulation material from wood wool. The existing prototype of such material - fibrolite contains woody wool of healthy wood but during burning emits toxic chemicals. The construction of wooden wall panels, which include a frame of lumber and thermal insulation material of wood wool, made of low quality pine wood and binder. Th

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3

Pandey, Krishna K., Jayashree, and H. C. Nagaveni. "Study of dimensional stability, decay resistance, and light stability of phenylisothiocyanate modified rubberwood." BioResources 4, no. 1 (2009): 257–67. http://dx.doi.org/10.15376/biores.4.1.257-267.

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Rubber wood (Hevea brasiliensis) was esterfied with phenylisothiocya-nate, and dimensional stability, decay resistance, and photo stability of the modified wood was assessed. The chemically modified wood was characterized by FTIR and CP/MAS 13C NMR spectroscopy. Unmodified and modified samples were exposed to a brown rot (Polyporus meliae) and a white rot (Coriolus versicolor) fungus for 12 weeks. Modified wood samples exhibited good dimensional stability and were very resistant to decay. However, phenylisothiocyanate modification of wood was not effective in decreasing photo-yellowing.

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4

Li, J. Z., T. Furuno, and S. Katoh. "Preparation and Properties of Acetylated and Propionylated Wood-Silicate Composite." Holzforschung 55, no. 1 (2001): 93–96. http://dx.doi.org/10.1515/hf.2001.015.

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Summary Acetylated wood-silicate (AWS) composites and propionylated wood-silicate (PWS) composites were prepared and their dimensional stability and flame resistance evaluated. The results displayed that: (1) With the existing of silicate gels, the AWS and PWS composites showed lower values of bulking coefficient (B), antiswelling efficiency (ASE) during water and moisture absorptions, and moisture excluding efficiency (MEE) than the corresponding acetylated wood and propionylated woods, but the AWS and PWS composites still exhibited a fairly good dimensional stability. (2) The oxygen indexes

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5

Hidayat, Wahyu, Fauzi Febrianto, Byantara Darsan Purusatama, and Nam Hun Kim. "Effects of Heat Treatment on the Color Change and Dimensional Stability ofGmelina arboreaandMelia azedarachWoods." E3S Web of Conferences 68 (2018): 03010. http://dx.doi.org/10.1051/e3sconf/20186803010.

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This study aimed to improve the color properties and dimensional stability of gmelina (Gmelina arborea) and mindi (Melia azedarach) woods via heat treatment. Heat treatment was conducted using an electric furnace at 180°C and 210°C for 3 h, with a heating rate of 2°C/min. Wood samples were stacked with and without metal clamp. The effectsof temperature and clamping during heat treatment on the color change and dimensional stability were evaluated. The evaluation of color change was performed using the CIE-Lab color system and the evaluation of dimensional stability was conducted by measuring t

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6

Islam, Md Saiful, Sinin Hamdan, Mohamad Rusop, and Md Rezaur Rahman. "Thermal Stability and Decay Resistance Properties of Tropical Wood Polymer Nanocomposites (WPNC)." Advanced Materials Research 667 (March 2013): 482–89. http://dx.doi.org/10.4028/www.scientific.net/amr.667.482.

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The effects of nanoclay on the thermal stability and decay resistance properties of tropical wood polymer nanocomposites (WPNCs) were investigated in this work. WPNC were prepared from several selected tropical wood species by impregnating the selected woods with a combination of nanoclay and phenol formaldehyde (PF) prepolymer mixture. The formation of WPNC was confirmed by the fourier transform infrared spectroscopy (FTIR) analysis. Thermal property of manufactured WPNC in terms of thermogravimetric analysis (TGA) was evaluated, and an improvement in thermal stability was found for fabricate

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7

Ding, Wei-Dan, Ahmed Koubaa, and Abdelkader Chaala. "Dimensional stability of methyl methacrylate hardened hybrid poplar wood." BioResources 7, no. 1 (2011): 504–20. http://dx.doi.org/10.15376/biores.7.1.504-520.

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This study examines the dimensional stability of fast-growing poplar clones wood after treatment by impregnation with methyl methacrylate (MMA). Six hybrid poplar clones from one plantation in Quebec were sampled. The effects of hardening with MMA on density as well as longitudinal, radial, tangential, and volumetric swelling properties (S), water uptake capacity (D), anti-swelling efficiency (ASE), and water repellent efficiency (WRE) after soaking were investigated. Hardening treatment increased the density of all poplar woods by 1.2 to 1.6 and decreased the inner water migration rate during

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8

Balfas, Jamal. "A NEW APPROACH TO OIL PALM WOOD UTILIZATION FOR WOODWORKING PRODUCTION (Part 2: Wood Modification with Organic Resin)." JOURNAL OF FORESTRY RESEARCH 5, no. 2 (2008): 115–24. https://doi.org/10.20886/ijfr.2008.5.2.115-124.

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The first stage of this study has demonstrated that oil plam wood has inferior characteristics in comparison with the conventional wood, and suggested to upgarade oil palm wood quality to increase its possible use for woodworking purposes. The use of organic resin (JRP-2) has been examined in this study for improving dimensional stability, strength and machining quality of the oil palm wood. Resin treatment was conducted by frying wood samples in a hot resin solution maintained at 60-80'C. The treated samples were then oven dried to reach 10% moisture content. After conditioning, wood samp

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9

Basri, Efrida, Nisrina Hanifah, Resa Martha, et al. "Effect of Citric Acid and Benzophenone Tetracarboxyclic Acid Treatments on Stability, Durability, and Surface Characteristic of Short Rotation Teak." Forests 13, no. 11 (2022): 1938. http://dx.doi.org/10.3390/f13111938.

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Short rotation teak (SRT) has a diameter of around 30 cm at the age of 15 years; however, the wood still has low quality, especially in dimensional stability and biological durability. The objective of this study was to improve dimensional stability and biological durability of SRT through modification treatment using non-biocide chemicals, citric acid (CA) and benzophenone tetracarboxylic acid (BPTCA). SRT sapwood was impregnated by 20% and 40% of CA or BPTCA followed by heating in the oven at 150 °C for 2 h. Dimensional stability, strength, surface characteristics and durability against term

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10

Dujmović, Marin, Branimir Šafran, Matija Jug, and Kristijan Radmanović. "Thermal Pre-treatments of Woody Biomass." Drvna industrija 76, no. 2 (2025): 213–21. https://doi.org/10.5552/drvind.2025.0212.

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The global demand to reduce CO2 emissions has led large industrial pollutants, particularly power generation and metallurgical sectors, to search for alternatives to traditional fossil fuels like coal. Wood pellets have emerged as a recognized cleaner alternative. Yet, pellets fall short of coal key properties, notably in calorific value and storage stability. By subjecting the feedstock for wood pellet production, namely woody biomass, to thermal pre-treatments like torrefaction or steam explosion, these limitations can be mitigated. These treatments reduce moisture content, increase energy d

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11

L’Hostis, Clément, Marie-France Thévenon, Emmanuel Fredon, and Philippe Gérardin. "Improvement of beech wood properties by in situ formation of polyesters of citric and tartaric acid in combination with glycerol." Holzforschung 72, no. 4 (2018): 291–99. http://dx.doi.org/10.1515/hf-2017-0081.

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AbstractBeech wood has been treated by impregnation followed by heating at various temperatures with solutions containing citric acid (CA) or tartaric acid (TA) alone or in combination with glycerol (G), i.e. with G+CA and G+TA. The resulting modified woods were tested in terms of resistance to leaching, durability and dimensional stability. These properties are improved as a function of heating temperature, which leads to higher levels of poly-esterification involving grafting onto wood simultaneously with thermal degradation of wood. Dimensional stability of all treated wood was increased, b

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12

Diouf, Papa-Niokhor, André Merlin, and Dominique Perrin. "Antioxidant properties of wood extracts and colour stability of woods." Annals of Forest Science 63, no. 5 (2006): 525–34. http://dx.doi.org/10.1051/forest:2006035.

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13

Gao, Chenggong, Xinjie Cui, and Junji Matsumura. "Multidimensional Exploration of Wood Extractives: A Review of Compositional Analysis, Decay Resistance, Light Stability, and Staining Applications." Forests 15, no. 10 (2024): 1782. http://dx.doi.org/10.3390/f15101782.

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Extractives, which naturally evolve as fundamental defense mechanisms in wood against environmental stresses, hold an essential place in the field of wood conservation science. Despite their low content in woody substrates, extractives are chemically complex and can be extracted accurately by solvents with different polarities, covering key components such as aliphatic, terpenoid, and phenolic compounds. The application of solvent extraction allows for the effective recovery of these extracts from forestry waste, thereby creating new opportunities for their reuse in wood modification and enhan

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14

Liu, Runhao, Xinyao Liu, Yuting Zhang, et al. "Paraffin Pickering Emulsion Stabilized with Nano-SiO2 Designed for Wood Impregnation." Forests 11, no. 7 (2020): 726. http://dx.doi.org/10.3390/f11070726.

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Wax impregnation is an effective approach to improve wood water resistance. However, melted waxes require special equipment and cannot penetrate deep enough into wood. Recently, wax emulsions show excellent efficiency in wood modification. In this study, paraffin Pickering emulsion stabilized by low dispersed SiO2 nanospheres was used to impregnate poplar wood. The microstructure and storage stability of the emulsion were evaluated. The dimensional stability, water uptake, wettability, and thermal stability of treated wood were also investigated. After homogenization, a milk-white oil-in-water

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15

Almeida, Tiago Hendrigo, Felipe Hideyoshi Icimoto, Diego Henrique Almeida, Vinicius Aquino, André Luis Christoforo, and Francisco Antonio Rocco Lahr. "Accelerated swelling of wood for rapid dimensional stability." Acta Scientiarum. Technology 45 (August 26, 2022): e60595. http://dx.doi.org/10.4025/actascitechnol.v45i1.60595.

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Dimensional stability of wood can be determined by measuring the total swelling percentage between 0% and FSP moisture content according to the ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997). Wood dimensional variation by the moisture content modifications must influence both structural elements and connections into timber structures. The wood swelling procedure according to the Brazilian code for saturation of wood samples can take more than a month, but the use of autoclave devices may accelerate this activity, making easier the dimensional stability determination. Thi

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16

Liu, Mihaela, Xinwei Tu, Xinyou Liu, Zhihui Wu, Jiufang Lv, and Anca Maria Vorodi. "A comparative study on the effects of linseed oil and shellac treatment on the hygroscopicity, dimensional stability, and color changes of Chinese ash wood." BioResources 15, no. 4 (2020): 8085–92. http://dx.doi.org/10.15376/biores.15.4.8085-8092.

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Linseed oil and shellac are natural, environmentally friendly materials with good water repellency. They were used to impregnate Chinese ash wood at room temperature (20 °C) using a vacuum-pressure procedure (consisting of three cycles of 0.01 MPa for 1.5 h and atmospheric pressure for 1.5 h) to improve the dimensional stability of wood. The effects of the impregnation treatment on wood color changes, dimensional stability, moisture absorption, and morphological characteristics were evaluated. The linseed oil and shellac treatment improved the dimensional stability of wood. Linseed oil and she

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17

Eckert, Christian, Shayla Sharmin, Aileen Kogel, et al. "What Makes the Wood? Exploring the Molecular Mechanisms of Xylem Acclimation in Hardwoods to an Ever-Changing Environment." Forests 10, no. 4 (2019): 358. http://dx.doi.org/10.3390/f10040358.

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Wood, also designated as secondary xylem, is the major structure that gives trees and other woody plants stability for upright growth and maintains the water supply from the roots to all other plant tissues. Over recent decades, our understanding of the cellular processes of wood formation (xylogenesis) has substantially increased. Plants as sessile organisms face a multitude of abiotic stresses, e.g., heat, drought, salinity and limiting nutrient availability that require them to adjust their wood structure to maintain stability and water conductivity. Because of global climate change, more d

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18

AUGUSTINA, SARAH, WAHYU DWIANTO, MUHAMMAD ADLY RAHANDI LUBIS, et al. "EFFECT OF ANATOMICAL STRUCTURE ON DIMENSIONAL STABILITY OF LOW MOLECULAR WEIGHT PHENOL-FORMALDEHYDE IMPREGNATED WOOD." Wood Research 68, no. 3 (2023): 425–43. http://dx.doi.org/10.37763/wr.1336-4561/68.3.425443.

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This research deals with low molecular weight-phenol formaldehyde (LMW–PF) impregnation on sepetir (Sindora spp), nyatoh (Palaquium spp.), and pisang putih (Mezzettia spp.) woods to determine the effect of different anatomical structure on weight percent gain and dimensional stability improvement. The wood samples were impregnated using LMW–PF solutions with 7, 8, 9, 10, and 11% of concentrations (w/w), vacuum-pressured (–98 kPa, 15 min, 350 kPa, 4 h), and re-immersed in 80°C for 3 h. According to the findings, LMW–PF impregnation reduced coefficient of swelling by 9.64–29.95%, and increased a

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19

Chai, Yu Bo, Jun Liang Liu, and Xing Zhen. "Dimensional Stability, Mechanical Properties and Fire Resistance of MUF-Boron Treated Wood." Advanced Materials Research 341-342 (September 2011): 80–84. http://dx.doi.org/10.4028/www.scientific.net/amr.341-342.80.

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In order to improve the dimensional stability, mechanical properties and fire resistance of the wood from Cryptomeria fortunei, the melamine-urea-formaldehyde (MUF) resin and the mixture of MUF/boric acid/borax (MBB) were prepared and used as the wood modification solution. Results show that both the MUF resin and the MBB solutions exhibit good permeability to wood. Under the same treatment conditions, the weight percent gains (WPG) of treated wood increases with the increasing concentration of modification solutions. MUF and MBB modification solutions can effectively enhance the dimensional s

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20

Schorr, Diane, and Pierre Blanchet. "Improvement of White Spruce Wood Dimensional Stability by Organosilanes Sol-Gel Impregnation and Heat Treatment." Materials 13, no. 4 (2020): 973. http://dx.doi.org/10.3390/ma13040973.

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Wood is a living material with a dimensional stability problem. White spruce wood is a Canadian non-permeable wood that is used for siding applications. To improve this property, white spruce wood was treated with organosilanes sol-gel treatment with different moisture content (oven dried, air dried, and green wood). No major morphological changes were observed after treatment. However, organosilanes were impregnated into the cell wall without densifying the wood and without modifying the wood structure. Si-O-C chemical bonds between organosilanes and wood and Si-O-Si bonds were confirmed by F

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21

Raveena, Thakur* Bhupender Dutt and Rajneesh Kumar. "Enhancing the durability of wood using heat treatment." Science World a monthly e magazine 3, no. 10 (2023): 2137–38. https://doi.org/10.5281/zenodo.8428538.

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Heat treatment is an effective method to improve the durability of wood against biodegradation as well as dimensional stability. Heat treatment of wood at different temperatures is targeted to improve the dimensional stability, hygroscopic properties and biological resistance of wood by modifying the chemistry of its cell components. These chemical changes can be expressed as increased dimensional stability, decreased hygroscopicity and ultimately increased durability of the wood.

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22

ADEBAWO, FUNKE GRACE, OLUKAYODE YEKEEN OGUNSANWO, OLAOLUWA ADENIYI ADEGOKE, and LUCIAN LUCIA. ""STRENGTH PROPERTIES, THERMAL STABILITY AND MICROSTRUCTURE OF ACETYLATED OBECHE (Triplochiton scleroxylon K. SCHUM) WOOD "." Cellulose Chemistry and Technology 56, no. 9-10 (2022): 933–40. http://dx.doi.org/10.35812/cellulosechemtechnol.2022.56.83.

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Acetylation is a well-established process to improve dimensional properties of wood and resistance to fungi attack. This study was carried out due to limited studies on the effect of acetylation on mechanical properties, thermal stability, and microstructural aspects of wood. Wood blocks, (each 20×20×60 mm) of Obeche wood were acetylated with acetic anhydride at 120 °C for 60, 120, 180, 240 and 300 minutes. The microstructure and thermal stability of acetylated and unmodified wood blocks were assessed using SEM and TGA, respectively. The maximum compressive strength (MCS//g) and modulus of ela

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23

Ohmae, Kosuke, Kazuya Minato, and Misato Norimoto. "The Analysis of Dimensional Changes Due to Chemical Treatments and Water Soaking for Hinoki (Chamaecyparis obtusa) Wood." Holzforschung 56, no. 1 (2002): 98–102. http://dx.doi.org/10.1515/hf.2002.016.

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Summary To clarify tangential and radial dimensional changes in hinoki (Chamaecyparis obtusa) wood by ten kinds of treatments and successive water soaking, a vector expression on the tangential-radial coordinates was proposed and a new measure (ASE′) to evaluate the dimensional stability of wood was defined. The ASE′ is expressed by 100(1 − Vs′ /Vu ) where Vu is the volumetric swelling coefficient of untreated wood and Vs′ is that of treated wood calculated on the basis of its oven-dried volume before treatment. The results from formaldehyde treated, heat treated and steam treated wood showed

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24

He, Zaixin, Yanran Qi, Gang Zhang, et al. "Mechanical Properties and Dimensional Stability of Poplar Wood Modified by Pre-Compression and Post-Vacuum-Thermo Treatments." Polymers 14, no. 8 (2022): 1571. http://dx.doi.org/10.3390/polym14081571.

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Fast-growing poplar wood has the bottleneck problems of inferior mechanical strength and poor dimensional stability. In this study, the wood was modified by combined treatments of pre-compression and post-vacuum-thermo modification to improve its mechanical strength and dimensional stability, simultaneously; in addition, the variation law of mechanical properties of the wood with compression ratio as well as the improvement effect of dimensional stability of the treated wood were mainly studied. The results show that the optimal temperature and time of the vacuum-thermo modification were 190 °

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25

Bodîrlău, Ruxanda, Carmen Alice Teacă, and Iuliana Spiridon. "Chemical modification of beech wood: Effect on thermal stability." BioResources 3, no. 3 (2008): 789–800. http://dx.doi.org/10.15376/biores.3.3.789-800.

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Beech sawdust was reacted with phthalic (PA) and maleic (MA) anhydrides for chemical modification. The influence of reaction time and anhydride amount was investigated. IR spectra gave evidence of wood esterification. Thermogravimetric investigation of chemically modified wood indicated a better thermal stability (mainly for wood treated with phthalic anhydride) in comparison with the untreated wood.

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Adelusi, Emmanuel, Olayiwola Ajala, Reuben Afolabi, and Kayode Olaoye. "Strength and dimensional stability of cement-bonded wood waste-sand bricks." Journal of Forest Science 67, No. 12 (2021): 545–52. http://dx.doi.org/10.17221/98/2021-jfs.

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Conservation of trees which belong to renewable natural resources in developing countries through judicious utilization in building industry has been seriously left unattended to over the years. The utilization of this unprocessed wealth materials which could serve as one of the alternative constituents in construction materials is now a global concern. Therefore, the needs to investigate the strength and water sorption property of wood waste as a partial replacing material in brick production for building construction arise. Sawdust, sand and cement were mixed together at three different mixi

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Richter, K., and R. Steiger. "Thermal Stability of Wood-Wood and Wood-FRP Bonding with Polyurethane and Epoxy Adhesives." Advanced Engineering Materials 7, no. 5 (2005): 419–26. http://dx.doi.org/10.1002/adem.200500062.

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Alade, Adefemi Adebisi, Christoph Hoette, and Holger Militz. "Coatings Adhesion on Chemically Modified Scots Pine (Pinus sylvestris L.) Woods." Forests 15, no. 3 (2024): 526. http://dx.doi.org/10.3390/f15030526.

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Synergizing coating and wood modification is a promising concept to develop wood products that have multi-qualities that include excellent dimensional stability, durability, and weathering resistance. However, the nature of the modified substrate is a critical parameter for coating adhesion. Chemical modification of wood impacts the physicochemical properties of the wood, which could in turn impact the adhesion of coatings. Therefore, this study investigated the adhesion of seven different coatings to Pinus sylvestris L. woods chemically modified through esterification with acetic anhydride (a

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29

Slabejová, Gabriela, and MÁRIA ŠMIDRIAKOVÁ. "Colour stability of surface finishes on thermally modified beech wood." Annals of WULS, Forestry and Wood Technology 114 (June 28, 2021): 116–24. http://dx.doi.org/10.5604/01.3001.0015.2391.

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Colour stability of surface finishes on thermally modified beech wood. The paper deals with the influence of the type of transparent surface finish on the change of colour of the surfaces of native beech wood and thermally modified wood. At the same time, the colour stability of three surface finishes on the surfaces of native and thermally modified beech wood was monitored. Beech wood was thermally modified at temperature of 125 °C for 6 hours. The thermal treatment was performed in a pressure autoclave APDZ 240, by the company Sundermann s.r.o in Banská Štiavnica. Three various types of surf

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Benke, Arthur C., and J. Bruce Wallace. "Wood Dynamics in Coastal Plain Blackwater Streams." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 1 (1990): 92–99. http://dx.doi.org/10.1139/f90-009.

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We quantified woody debris in the river swamps of the sixth order Ogeechee River and several smaller tributaries in the Coastal Plain of the southeastern USA, compared swamp wood with woody debris in the channel, and studied wood movement in the swamp and main channel over 20 mo. Woody debris in the Ogeechee River swamps was relatively low (0.362–0.880 kg ash-free dry mass (AFDM)/m2) in comparison to several mixed temperate deciduous forests. Similarly, wood in the tributary swamps was low (mean = 0.82 kg AFDM/m2), and there were no trends along the river continuum. Wood in the channels of bot

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ZAI, LIVER IMAN PUTRA, SAHARMAN GEA, MARPONGAHTUN MARPONGAHTUN, EDDYANTO EDDYANTO, NUR AZIZAH, and APRI H. SISWANTO. "Coconut oil effect on the hygroscopic properties of Simalambuo wood (Lophopetalum spp.)." Jurnal Natural 22, no. 2 (2022): 78–84. http://dx.doi.org/10.24815/jn.v22i2.24158.

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Simalambuo (Lophopetalum spp) trees are endemic to Southeast Asia and widely grow in the natural forests in Nias island. Local people whose experience of utilizing the simalambuo wood have claimed that the wood easily absorbs water. Throughout our searches, not many efforts to modify the physical properties of the simalambuo woods have been carried out yet. Therefore, in this study, we modified simalambuo wood by thermal treatment in coconut oil-ambient conditions. The heat treatment became an option to support the efforts in reducing the use of non-environmental-friendly materials and methods

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Moya, Roger, Johanna Gaitán-Álvarez, Alexander Berrocal, and Fabio Araya. "Effect of CaCO3 on the wood properties of tropical hardwood species from fast-growth plantation in Costa Rica." BioResources 15, no. 3 (2020): 4802–22. http://dx.doi.org/10.15376/biores.15.3.4802-4822.

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This work aimed to evaluate the effect of the precipitation of CaCO3 via subsequential in-situ mineral formation based on a solution-exchange process of two solution-exchange cycles via impregnation with CaCl2 in ethanol and NaHCO3 in water. The effects were investigated in terms of the structure of the wood and the thermal, physical, mechanical, and decay resistance properties of nine species commonly used in commercial reforestation in Costa Rica. The thermogravimetric analysis results showed that the woods with the highest formation of CaCO3 showed a more pronounced signal at 200 °C in rela

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MASCARENHAS, Adriano Reis Prazeres, Marta Silvana Volpato SCCOTI, Rafael Rodolfo de MELO, Fernando Luíz de Oliveira CORRÊA, Emanuel Fernando Maia de SOUZA, and Alexandre Santos PIMENTA. "Physico-mechanical properties of the wood of freijó, Cordia goeldiana (Boraginacea), produced in a multi-stratified agroforestry system in the southwestern Amazon." Acta Amazonica 51, no. 2 (2021): 171–80. http://dx.doi.org/10.1590/1809-4392202003001.

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ABSTRACT Agroforestry systems (AFSs) integrate, through sustainable practices, agricultural and forest crops for the production of wood and food, providing environmental services, and conserving biodiversity. The freijó (Cordia goeldiana) has potential for cultivation in the Amazon for timber purposes, but data on the characteristics of its wood produced in AFSs are scarce. Our objective was to determine the physical-mechanical properties and suggest technological applications of freijó wood produced in a multi-stratified AFS established in the state of Rondônia, Brazil in 1996. Agricultural a

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Tuong, Vu Manh, and Jian Li. "Effect of heat treatment on the change in color and dimensional stability of acacia hybrid wood." BioResources 5, no. 2 (2010): 1257–67. http://dx.doi.org/10.15376/biores.5.2.1257-1267.

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Acacia hybrid (Acacia mangium x auriculiformis), a wood species of low dimensional stability which is used almost exclusively for pulp, paper, or as firewood, was heat treated in nitrogen at 210-230 ºC for 2 to 6 hours. The changes in color and anti-swelling efficiency (ASE) of wood after heat treatment were determined for the different heat treatment conditions. The results show that heat treatment mainly resulted in the darkening of wood tissues, and heat-treated wood had better dimensional stability than those of the control samples. Chemical modifications of wood components were determined

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Gao, Zhiqiang, and Rongfeng Huang. "Effects of Pressurized Superheated Steam Treatment on Dimensional Stability and Its Mechanisms in Surface-Compressed Wood." Forests 13, no. 8 (2022): 1230. http://dx.doi.org/10.3390/f13081230.

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Shape stability is one of the most important properties of surface-compressed wood used as a substitute for other energy-intensive adhesives, concrete, and metals. This study evaluated the dimensional stability, surface wettability, chemical structure, cellulose crystalline structure, and microstructure of surface-compressed wood. The surface-compressed wood was then treated with pressurized superheated steam. The equilibrium moisture content, thickness swelling ratio, and wettability of the wood decreased by 20.39%, 30.63% (moisture absorption), 40.51% (water absorption), and 86.95% after pre

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Czernik, Stefan, David K. Johnson, and Stewart Black. "Stability of wood fast pyrolysis oil." Biomass and Bioenergy 7, no. 1-6 (1994): 187–92. http://dx.doi.org/10.1016/0961-9534(94)00058-2.

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Zhang, Yaolin, S. Y. Zhang, Dian Qing Yang, and Hui Wan. "Dimensional stability of wood–polymer composites." Journal of Applied Polymer Science 102, no. 6 (2006): 5085–94. http://dx.doi.org/10.1002/app.23581.

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Shamaev, Vladimir Aleksandrovich, Oleg Fedorovich Shishlov, Aleksey Aleksandrovich Kruzhilin, and Larisa Vasilievna Bryndina. "OBTAINING MODIFIED WOOD WITH INCREASED STABILITY." Chemistry of plant raw material, no. 2 (June 15, 2025): 327–33. https://doi.org/10.14258/jcprm.20250214723.

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The results of research on the expediency of replacing phenol-formaldehyde resins (KFK-10) used to increase the form stability of natural and pressed soft hardwood with natural environmentally friendly modifiers are presented. Cardanol ZHSOK (cashew nut shell liquid) is considered as a stabilizing agent. It has been established that ZHSOK is an effective reactive modifier. Polymerization of cardanol should be carried out at a temperature of 150 °C. The maximum stabilizing effect occurs when the cardanol content in the wood is 9%. When alder was modified with cardanol, the wood samples turned o

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Esteves, Bruno, Lina Nunes, Rogério Lopes, and Luísa Cruz-Lopes. "Enhanced Properties of Cryptomeria japonica (Thunb ex L.f.) D.Don from the Azores Through Heat-Treatment." Forests 16, no. 1 (2025): 166. https://doi.org/10.3390/f16010166.

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This study evaluates the chemical, physical, mechanical, and biological properties of untreated and heat-treated Cryptomeria japonica (Thunb ex L.f.) D.Don wood from the Azores, Portugal. Heat treatment was performed at 212 °C for 2 h following the Thermo-D class protocol. Chemical analysis revealed an increase in ethanol soluble extractives and lignin content after heat treatment, attributed to hemicellulose degradation and condensation reactions. Dimensional stability improved significantly, as indicated by reduced swelling coefficients and higher anti-swelling efficiency (ASE), particularly

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Tuong, Vu Manh, Nguyen Van Huyen, Nguyen Trong Kien, and Nguyen Van Dien. "Durable Epoxy@ZnO Coating for Improvement of Hydrophobicity and Color Stability of Wood." Polymers 11, no. 9 (2019): 1388. http://dx.doi.org/10.3390/polym11091388.

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The hydrophobicity and color stability of wood are important properties that can be easily changed when wood is used as a raw material for outdoor products, reducing the service life of wood. Herein, an epoxy@ZnO coating was applied by a two-step simple spray coating method to improve the hydrophobicity and color stability of Styrax tonkinensis wood. The hydrophobicity, robustness of coating, as well as the color stability of uncoated wood samples and epoxy@ZnO coated wood samples were evaluated. The microstructure morphology and crystal structures of the coating were also characterized by a f

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Rahayu, Istie, Fitria Cita Dirna, Akhiruddin Maddu, Wayan Darmawan, Dodi Nandika, and Esti Prihatini. "Dimensional Stability of Treated Sengon Wood by Nano-Silica of Betung Bamboo Leaves." Forests 12, no. 11 (2021): 1581. http://dx.doi.org/10.3390/f12111581.

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Sengon (Falcataria moluccana Miq.) is one of the fastest growing wood that is broadly planted in Indonesia. Sengon wood has inferior wood properties, such as a low density and dimensional stability. Therefore, sengon wood requires a method to improve its wood quality through wood modification. One type of wood modification is wood impregnation. On the other hand, Betung Bamboo leaves are considered as waste. Betung Bamboo leaves contain silica. Based on several researches, nano-SiO2 could improve fast-growing wood qualities. According to its perfect solubility in water, monoethylene glycol (ME

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Zhang, Yuan, Pengfei Guan, Xin Ma, et al. "Study on the Effect of Acrylic Acid Emulsion on the Properties of Poplar Wood Modified by Sodium Silicate Impregnation." Forests 14, no. 6 (2023): 1221. http://dx.doi.org/10.3390/f14061221.

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Inorganic silicate impregnation-modified fast-growing wood shows improved mechanical properties and thermal stability, but inorganic silicate agent loss and moisture absorption affect its processability. This study proposes a method to improve the impregnating agent loss and modified wood moisture absorption of poplar wood modified by using an acrylic acid emulsion/sodium silicate composite. The acrylic acid emulsion coated the sodium silicate and cell wall surfaces with a cured film that blocked water molecules from entering the modified wood. The acrylic acid emulsion adhered to the wood and

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Варанкина, Г. С., Н. Г. Колесов, and Д. С. Русаков. "Increasing dimensional stability, stability and water resistance of wood products modified with urea solution." Известия СПбЛТА, no. 247 (April 24, 2024): 302–14. http://dx.doi.org/10.21266/2079-4304.2024.247.302-314.

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При термохимической модификации сухой древесины пропитывающими составами при повышенных температурах преобладают процессы пропитки и движения пропитывающих веществ под действием капиллярного давления после поглощения состава вглубь древесины, а также под действием избыточного давления в автоклаве. Цель работы - повысить формостабильность, водостойкость и улучшить эксплуатационные свойства изделий из древесины, модифицированной раствором карбамида. При большом значении градиента давления, который наблюдается при модификации, именно на мембранах межклеточных пор происходит образование газовых пу

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KELEŞ, ÖZLEM ÖZGENÇ, and SEFA DURMAZ. "A SYNERGIC EFFECT OF WATER-BASED ACRYLIC RESIN WITH BORIC ACID ON LEACHABILITY." Wood Research 68, no. 2 (2023): 268–78. http://dx.doi.org/10.37763/wr.1336-4561/68.2.268278.

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In this study, the Scots pine wood samples were impregnated (single treatment) with boric acid combined with two types of water-based acrylic resin (pure acrylic and semi-translucent acrylic emulsion) to limit the boron leaching and improve the decay resistance. The results showed dimensional stability in anti-swelling efficiency and water absorption improved in wood specimens treated with boric acid and acrylic types. While the leachability was over 90% for only 3% boric acid-impregnated wood (control), it was calculated at 36% for acrylic emulsions-impregnated wood. Although there were no we

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Cirule, Dace, Errj Sansonetti, Ingeborga Andersone, Edgars Kuka, and Bruno Andersons. "Enhancing Thermally Modified Wood Stability against Discoloration." Coatings 11, no. 1 (2021): 81. http://dx.doi.org/10.3390/coatings11010081.

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Thermal modification of wood has gained its niche in the production of materials that are mainly used for outdoor applications, where the stability of aesthetic appearances is very important. In the present research, spectral sensitivity to discoloration of thermally modified (TM) aspen wood was assessed and, based on these results, the possibility to delay discoloration due to weathering by non-film forming coating containing transparent iron oxides in the formulation was studied. The effect of including organic light stabilizers (UVA and HALS) in coatings as well as pretreatment with lignin

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Liu, Mihaela, Guanglin Xu, Jianan Wang, et al. "Effects of Shellac Treatment on Wood Hygroscopicity, Dimensional Stability and Thermostability." Coatings 10, no. 9 (2020): 881. http://dx.doi.org/10.3390/coatings10090881.

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Dimensional stability proves to be an important factor affecting the quality of wooden products. As a sort of crude and thermoplastic resin, shellac excreted by lac insects demonstrates water-repellent and environmental-friendly features. The research impregnated shellac with wood at room temperature and with a vacuum-pressure procedure. Efforts were made to examine how shellac treatment affected the dimensional stability, moisture absorption, chemical structure, thermostability, as well as morphological characteristics of wood. Results indicated that shellac treatment was a type of efficient

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Han, Xiaoshuai, Zhenxing Wang, Qinqin Zhang, and Junwen Pu. "An effective technique for constructing wood composite with superior dimensional stability." Holzforschung 74, no. 5 (2020): 435–43. http://dx.doi.org/10.1515/hf-2019-0176.

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AbstractFast-growing wood is an abundant and low-cost material and is widely used for structural building and furniture construction. However, inferior mechanical properties and dimensional instability limit its application in advanced engineering structures. Herein, we developed a simple, effective and “green” method to transform bulk poplar into a high-performance wood composite. The wood composite was prepared by the impregnation of the itaconic acid (IA) solution acting as a grafting anchor into the wood matrix, followed by in situ polymerization of styrene upon heating to form a hydrophob

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Wahyuni, Ifa Zanty, Musrizal Muin, and Suhasman. "PERUBAHAN SIFAT FISIK DAN STABILITAS DIMENSI KAYU AKIBAT PENGAWETAN MENGGUNAKAN IMPREGNASI KARBONDIOKSIDA." PERENNIAL 3, no. 1 (2007): 1. http://dx.doi.org/10.24259/perennial.v3i1.162.

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The effect of preservative treatment using carbon dioxide as a carrier solvent on wood physical properties and dimensional stability had been observed on three commercial wood species (Agathis sp., Palaquium sp., and Heritiera sp.). For the purpose of the study, wood samples measuring 1,5 (R) x 1,5 (T) x 15 (L) cm were prepared. Treatment was conducted at elevated temperature (50C - 350C) and increased pressure (60 - 80 kgf/cm2) on one occasion with five replicates using two specimens of each wood species for each treatment. The final treatment condition was maintained for three different peri

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Yi, Zede, Bo Zhao, Murong Liao, and Zhiyong Qin. "Fabrication of Superhydrophobic Wood Surface by Etching Polydopamine Coating with Sodium Hydroxide." Coatings 10, no. 9 (2020): 847. http://dx.doi.org/10.3390/coatings10090847.

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Superhydrophobic treatment of wood surfaces can effectively prevent the contact between the external moisture and wood, which improves the service life of the wood. In this study, different rough surfaces of wood were constructed, derived from the self-polymerization of dopamine (DA) in weak base solution to form a polydopamine (PDA) coating and the deprotonation of the PDA coating in a strong base solution. Furthermore, octadecyltrichlorosilane (OTS) was used as a low-surface-free-energy agent to modify rough surface in order to prepare superhydrophobic woods: Wood@PDA–NaOH–OTS and the Wood@P

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Huang, Erzhuo, Yanwei Cao, Xinpeng Duan, Yutao Yan, Zhe Wang, and Chunde Jin. "Cross-Linked Chitosan as an Eco-Friendly Binder for High-Performance Wood-Based Fiberboard." International Journal of Polymer Science 2021 (July 1, 2021): 1–7. http://dx.doi.org/10.1155/2021/8671384.

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High-performance wood-based fiberboards with high strength and dimensional stability were fabricated by hot-pressing method using 2,5-dimethoxy-2,5-dihydrofuran (DHF) cross-linked chitosan (CS) as an eco-friendly binder. The effects of cross-linked chitosan on the mechanical properties and dimensional stability of wood-based fiberboards were investigated. It is evident that cross-linked chitosan addition was effective in improving mechanical properties and dimensional stability of wood-based fiberboards. The prepared wood-based fiberboard bonded by DHF cross-linked CS displayed optimum modulus

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