Characteristic Features of the Oil-Heat Treated Woods From Tropical Fast Growing Wood Species

Suri, Intan Fajar; Purusatama, Byantara Darsan; Lee, Seung Hwan; Kim, Nam Hun; Hidayat, Wahyu; Ma’ruf, Shalehudin Denny; Febrianto, Fauzi

doi:10.37763/wr.1336-4561/66.3.365378

Cited by 14 publications

(9 citation statements)

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“…This is probably due to the use of palm oil. The fine band of high intensity observed around wavelength 1740 cm −1 of the wood samples treated with palm oil reflects the modification in carbohydrates (in hemicelluloses) by oxidation, of the content of C=O bonds of carboxylic acids due to palm oil [ 48 , 52 , 53 ]. The band at 1505 cm −1 , which highlights the vibrational stretching of aromatic skeletal C=C in lignin, is more accentuated for palm oil heat treatment, implying that this treatment degrades the wood lignin more than air heat treatment.…”

Section: Resultsmentioning

confidence: 99%

Effects of Heat Treatment on Color, Dimensional Stability, Hygroscopicity and Chemical Structure of Afrormosia and Newtonia Wood: A Comparative Study of Air and Palm Oil Medium

Bessala

Gao

et al. 2023

Polymers

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In recent years, China is increasingly dependent on imported wood. Afrormosia and Newtonia are some of the imported species with good utilization potential. However, both of them also have problems with poor dimensional stability. In order to make better use of these two types of wood, the influence of heat treatment under air and palm oil conditions on the color, dimensional stability, and hygroscopicity of Afrormosia and Newtonia was investigated. The Afrormosia and Newtonia wood samples were heated in air or palm oil medium for two hours at 160 °C, 180 °C and 200 °C, respectively. Then, the color, weight changes, swelling, moisture absorption and chemical structure were evaluated for each case. As results, the heat treatments with air or palm oil increased the dark color of Newtonia and Afrormosia wood and this increase was proportional to the treatment temperature. The tangential and radial swelling coefficient for air heat treatment of Afrormosia wood at 200 °C were, respectively, reduced by 24.59% and 19.58%, while this reduction for Newtonia was 21.32% and 14.80%. The heat treatment in palm oil further improved the stability and hygroscopicity of the wood, showing that the Afrormosia samples treated by palm oil at 200 °C underwent a decrease of its tangential and radial swelling coefficient, respectively, by 49.34% and 45.88%, whereas the tangential and radial swelling coefficient of Newtonia treated under the same conditions were reduced by 42.85% and 33.63%, respectively. The heat treatments of Afrormosia and Newtonia samples under air at 200 °C diminished the water absorption by 21.67% and 22.12%. The water absorption of Afrormosia and Newtonia heat-treated under palm oil at 200 °C was reduced, respectively, by 39.40% and 37.49%. Moreover, the FTIR analysis showed the decrease of hydroxyl groups in proportion to the wood treatment temperature.

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Section: Resultsmentioning

confidence: 99%

Effects of Heat Treatment on Color, Dimensional Stability, Hygroscopicity and Chemical Structure of Afrormosia and Newtonia Wood: A Comparative Study of Air and Palm Oil Medium

Bessala

Gao

et al. 2023

Polymers

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“…Several studies on the effect of OHT on improving wood properties have been reported by previous researchers (Bazyar, 2012;Dubey et al, 2011;Suri et al, 2021a;Suri et al, 2022;Wang & Cooper, 2005). Oil absorption contributes to increased dimensional stability, hydrophobicity, and resistance to mold and fungi (Dubey et al, 2011;Wang & Cooper, 2005).…”

Section: Introductionmentioning

confidence: 92%

“…Wood species in Indonesia that significantly increased in production are primarily fast-growing trees, like mindi (Melia azedarach), mangium (Acacia mangium), and sengon (Falcataria moluccana) (Febrianto et al, 2010;Haryanto et al, 2021;Rafly et al, 2022). Fast-growing wood species have the advantages of short growth rotation and short time for harvesting, but they have several disadvantages in terms of wood quality, such as lower density and shorter fiber than slow-growing wood species (Aisyah et al, 2021;Suri et al, 2021a;Yunita et al, 2022). Therefore, efforts to improve fast-growing wood quality through modification are urgently needed.…”

Section: Introductionmentioning

confidence: 99%

“…Bazyar (2012) reported an increase in the weight percentage of Populus tremula wood after OHT at 190°C to 220°C for 4, 5, and 6 hours. Suri et al (2021a) reported the effect of OHT on the anatomical properties of gmelina and mindi wood, where OHT had a thickening effect on the fiber cell walls in both wood species. Suri et al (2021b) reported significant differences in yield in color and weight changes in royal paulownia and Korean white pine woods after the modification by hot air and hot oil.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Temperature during Oil Heat Treatment on the Quality Improvement of Mindi (Melia azedarach) and Sengon (Falcataria moluccana) Woods

Ma’ruf

Bakri

Febryano³

et al. 2023

JTEP-L

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Fast growing wood has high potential in increasing numbers but has a low quality so that it requires modification to improve wood quality. Oil heat treatment (OHT) is one of a wood modification method using vegetable oil as a heat conducting medim. The objective of this study was to analyze the effect of temperature OHT on color change (ΔL*, Δa*, Δb*, and ΔE), physical properties (density, moisture content, water absorption, and weight changes), and the compressive strength of mindi (Melia adezarach) and sengon (Paraserianthes falcataria). OHT was conducted using 2 hours duration on temperature 180C, 200C, 220C, and 240C. The results showed that the effect of temperature on wood color inflicted an increase in the values of ΔL*, Δa*,Δb*, and ΔE on higher temperature of OHT. The effect of temperature on the physical properties of wood results in an increase on density at certain temperature and wood species as well as decreasing moisture content, water absorption, and weight changes of wood on higher temperature of OHT. The effect of temperature on mechanical properties of wood results in increasing compressive strength at certain temperatures and types of wood, but there is decrease compressive strength in the higher temperature of OHT.Keywords: Color change, oil hot treatment, mechanical properties, physical properties

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“…These three wood species belong to fast-growing species. Fast-growing wood species have the characteristics of small diameter, low quality, and contain many juvenile woods, resulting in low wood yield (Cahyono et al 2017;Suri et al 2021). Afrika wood has a specific gravity of 0.37 (Kim et al 2012(Kim et al , 2014), strength class of IV (Karlinasari et al 2021), and durability class of IV (Febrianto et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Physical and Mechanical Properties of Oriented Strand Board from Three Species of Plantation Forests at Various Resin Contents

et al. 2022

Self Cite

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The objective of this study was to determine the physical and mechanical properties of oriented strand board (OSB) from three wood species of plantation forests, i.e., Afrika (Maesopsis eminii), mangium (Acacia mangium), and sengon (Paraserianthes falcataria) at various resin contents. OSB was made with a shelling ratio (face:core:back) of 1:2:1 and a target density of 0.6 g/cm3. Methylene diphenyl di-isocyanate (MDI) adhesive was used with 3%, 5%, and 7% resin contents. The physical and mechanical properties were evaluated based on JIS A 5908:2003 standard and the values were compared with CSA 0437.0 (Grade O-1) standard. The results show that the physical and mechanical properties of the OSB were improved as the resin content increased for all wood species. OSB prepared from Afrika and mangium wood strands with 7% resin content showed better physical and mechanical properties than the other OSBs. Thickness swelling of OSB prepared from three wood species had met the CSA O437.0 (Grade O-1) standard. All OSBs produced in this experiment met the standard for MOR parallel and perpendicular to the grain. OSB from three wood species with a 5% and 7% resin content met the standard for MOE perpendicular to the grain. Only mangium OSB with a resin content of 7% met the standards for MOE parallel to the grain. Afrika OSB with 5% and 7% resin content, mangium OSB with 5% resin content, and sengon OSB with 3% and 7% resin content met the standard for the internal bond. Keywords: Acacia mangium, Maesopsis eminii, Methylene diphenyl di-isocyanate, Oriented strand board, Paraserianthes falcataria

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Characteristic Features of the Oil-Heat Treated Woods From Tropical Fast Growing Wood Species

Cited by 14 publications

References 0 publications

Effects of Heat Treatment on Color, Dimensional Stability, Hygroscopicity and Chemical Structure of Afrormosia and Newtonia Wood: A Comparative Study of Air and Palm Oil Medium

Effects of Heat Treatment on Color, Dimensional Stability, Hygroscopicity and Chemical Structure of Afrormosia and Newtonia Wood: A Comparative Study of Air and Palm Oil Medium

Effects of Temperature during Oil Heat Treatment on the Quality Improvement of Mindi (Melia azedarach) and Sengon (Falcataria moluccana) Woods

Physical and Mechanical Properties of Oriented Strand Board from Three Species of Plantation Forests at Various Resin Contents

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