Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH3COOH and H2O2 and Densification

Yunianti, Andi Detti; Suhasman, S; Agussalim, A; Muin, Musrizal; Arisandi, Heru

doi:10.3390/f12111607

Open AccessCommunication

Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification

by

Andi Detti Yunianti

^*,

S Suhasman

,

A Agussalim

,

Musrizal Muin

and

Heru Arisandi

Faculty of Forestry, Hasanuddin University, South Sulawesi, Makassar 90245, Indonesia

^*

Author to whom correspondence should be addressed.

Forests 2021, 12(11), 1607; https://doi.org/10.3390/f12111607

Submission received: 23 October 2021 / Revised: 12 November 2021 / Accepted: 16 November 2021 / Published: 22 November 2021

(This article belongs to the Special Issue Advanced Technologies in Physical and Mechanical Wood Modification)

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Abstract

One process to improve wood quality is densification or wood surface compression. Our study analyzed the changes in some basic properties of pine wood, including its anatomical structure, density, modulus of elasticity (MOE), and dimensions of cellulose crystallites, after densification following soaking pretreatment in CH₃COOH and H₂O₂ at a concentration of 20%. Samples were sawn in radial and tangential directions for analysis of the wood. The results showed a change in the shape of tracheid cells from hexagonal to oval, as well as damage to the ray cell constituents on the tangential surface. The thickness decrease of the samples was in accordance with the target, which meant that spring-back was short. In general, the tangential boards had a higher density than the radial boards, with a lower MOE and crystallite dimensions. Our findings showed that the densified tangential board was stronger than the radial board.

Keywords: densification; soaking; CH₃COOH; H₂O₂; radial; tangential

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MDPI and ACS Style

Yunianti, A.D.; Suhasman, S.; Agussalim, A.; Muin, M.; Arisandi, H. Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification. Forests 2021, 12, 1607. https://doi.org/10.3390/f12111607

AMA Style

Yunianti AD, Suhasman S, Agussalim A, Muin M, Arisandi H. Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification. Forests. 2021; 12(11):1607. https://doi.org/10.3390/f12111607

Chicago/Turabian Style

Yunianti, Andi Detti, S Suhasman, A Agussalim, Musrizal Muin, and Heru Arisandi. 2021. "Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification" Forests 12, no. 11: 1607. https://doi.org/10.3390/f12111607

APA Style

Yunianti, A. D., Suhasman, S., Agussalim, A., Muin, M., & Arisandi, H. (2021). Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification. Forests, 12(11), 1607. https://doi.org/10.3390/f12111607

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Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH₃COOH and H₂O₂ and Densification

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