Mechanical characteristics of impregnated white Jabon wood ( Anthocephalus cadamba ) using merbau extractives and selected polymerised merbau extractives

Malik, Jamaludin; Ozarska, Barbara

doi:10.4067/s0718-221x2019005000413

Cited by 4 publications

(3 citation statements)

References 22 publications

(32 reference statements)

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“…This shortcoming can be solved by thermal treatment [ 25 , 26 ]. Merbau extractives have potential as an impregnating material for low-quality timber to improve its properties [ 27 , 28 ]. The effect of higher temperatures on selected fire safety features of tropical wood shows that the thermal treatment of merbau and meranti wood significantly increased its flammability and accelerated its combustion [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process

et al. 2021

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Thermal modification is an environmentally friendly process in which technological properties of wood are modified using thermal energy without adding chemicals, the result of which is a value-added product. Wood samples of three tropical wood species (meranti, padauk, and merbau) were thermally treated according to the ThermoWood process at various temperatures (160, 180, 210 °C) and changes in isolated lignin were evaluated by nitrobenzene oxidation (NBO), Fourier-transform infrared spectroscopy (FTIR), and size exclusion chromatography (SEC). New data on the lignins of the investigated wood species were obtained, e.g., syringyl to guaiacyl ratio values (S/G) were 1.21, 1.70, and 3.09, and molecular weights were approx. 8600, 4300, and 8300 g·mol−1 for meranti, padauk, and merbau, respectively. Higher temperatures cause a decrease of methoxyls and an increase in C=O groups. Simultaneous degradation and condensation reactions in lignin occur during thermal treatment, the latter prevailing at higher temperatures.

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Section: Introductionmentioning

confidence: 99%

Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process

et al. 2021

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“…Boric acid and borax increased the hardness of varnished wood surface (Ors et al 2007). Malik and Ozarska (2019) reported that the density and hardness of white jabon wood ( Anthocephallus cadamba ) increased after impregnation with polymerized merbau extractives.…”

Section: Resultsmentioning

confidence: 99%

Mechanical properties of samama wood (Antocephalus macrophyllus) after boron and castor bean oil impregnation and heat treatment

Cahyono

Lestari

Priadi

2022

International Wood Products Journal

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This research was conducted to detect changes in the mechanical properties of samama wood (Anthocephalus macrophyllus) after impregnation with boron, castor bean oil, and heat treatment. Samama wood has low durability so samples were impregnated with boric acid followed by impregnation with castor oil in order to achieve some fixation of the boric acid. After impregnation, heat treatments were applied for four hours at 80°C and 160°C. Results showed that the modulus of elasticity (MOE), modulus of rupture (MOR) and hardness of samama wood generally increased after the treatments. Compared with the control, the maximum differences in MOE and MOR were 19.9% and 26.7%, respectively. Castor oil treatment also increased the density and hydrophobicity of the samama wood.

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“…Rahayu et al (2014) and Darmawan et al (2013) related to the point of differentiation (demarcation) between juvenile and mature wood in sengon and jabon; Fajriani et al (2013) about variations in the properties of the wood in the radial direction, Widiyanto and Siarudin (2016) related to the shaving properties of the wood as raw material for frames; and Nugroho et al (2011) about the physical and mechanical properties of the wood. Chemical modification and impregnation on the jabon wood could improve quality and resistance to termite attacks (Hadi et al 2013(Hadi et al , 2015Komariah et al 2015;Hadiyane et al 2018;Lestari et al 2018;Arsyad et al 2019;Hadi et al 2019;Malik and Ozarska. 2019;Prihartini et al 2020;Hadi et al 2021;Malik et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

ANNA,

SIREGAR,

SUPRIYANTO

et al. 2023

Biodiversitas

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Abstract. Anna N, Siregar IZ, Supriyanto, Sudrajat DJ, Karlinasari L. 2023. Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia. Biodiversitas 24: 5895-5904. Jabon is a raw wood material for paper industries and has a fast-growing ability. Comprehensive information on the fundamental qualities of wood from the 12 provenances of jabon (Neolamarckia cadamba (Roxb.) Bosser) is a critical aspect of understanding their superior properties. The age of the samples at the trial was 42 months old, and the number of trees tested was 12, representing one provenance. Wood samples for physical (disk samples), mechanical, and anatomical properties were sampled at a height and length of 1.3 m and 35 cm. The logs were divided into 5 cm and 30 cm for wood samples with anatomical and mechanical properties. The physical and mechanical properties were tested according to ASTM D 4442, ASTM D 2395, and ASTM D 143 standards. The physical (density, specific gravity, and moisture content), mechanical properties (MOE and MOR), and anatomical properties (fiber length and microfibril angle) were carried out on wood from 12 provenances. Physical and anatomical properties were tested, from the pith to the outer bark. The average green wood density was 0.94 gcm-3, while the highest was obtained in the Rimbo Panti, Nusakambangan, Kapuas Tengah, and Batu Hijau provenances. The average specific gravity value from the 12 provenances of jabon was 0.46 in Batu Licin and Batu Hijau provenances; the average moisture content on oven-dry weight was 105.13%; and the highest value was in the Kuala Kencana provenance. The average MOE and MOR values were 51,039.93 kgcm-² and 488.37 kgcm-², with a dry air moisture content of 13.62%. The highest MOE and MOR values were in the Batu Licin and Gowa provenance, with MFA testing varied at 11.54°. The fiber length from the pith to the outer bark tended to increase, with an average of 1183.28 ?m. Based on the value of physical, mechanical, and anatomical properties, 12 provenances of jabon can only be used as non-structural raw materials. The Batu Hijau provenances have the highest density and specific gravity. However, the highest fiber length was found in Gowa provenance.

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Mechanical characteristics of impregnated white Jabon wood ( Anthocephalus cadamba ) using merbau extractives and selected polymerised merbau extractives

Cited by 4 publications

References 22 publications

Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process

Changes of Meranti, Padauk, and Merbau Wood Lignin during the ThermoWood Process

Mechanical properties of samama wood (Antocephalus macrophyllus) after boron and castor bean oil impregnation and heat treatment

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

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