Wettability of Chemically and Thermally Modified of Fast-Growing Teak Wood

Keterbasahan Kayu Jati Cepat Tumbuh Termodifikasi Kimia dan Panas

Authors

  • Nisrina Putri Hanifah Study Program of Forest Products Processing, Department of Environment and Forestry, Samarinda State Agricultural
  • Irma Wahyuningtyas Study Program of Forest Products Processing, Department of Environment and Forestry, Samarinda State Agricultural
  • Agung Nugrawan Kutana Study Program of Forest Products Processing, Department of Environment and Forestry, Samarinda State Agricultural
  • Fitria Cita Dirna Faculty of Forestry and Tropical Environment, Mulawarman University, Samarinda, Indonesia

DOI:

https://doi.org/10.24259/perennial.v21i1.43479

Keywords:

citric acid, contact angle, PEG 400, wettability, wood modification

Abstract

Fast-growing species are chemically and thermally modified to improve quality. These changes affect wood’s chemical composition and surface characteristics. This study aims to analyze the durability of fast-growing teak wood that has been chemically and thermally modified. Chemical modification was carried out by impregnation using citric acid and polyethylene glycol (PEG) 400, while heat modification carried out at 150 °C. The wettability of wood was tested by measuring the contact angle with six types of liquid, aquades, toluene, glycerin, methanol, alkyd, and acrylic paint. The results showed that chemical modification treatment significantly improved the wettability of wood compared to control and heat treatment. Wood treated with citric acid and PEG 400 exhibits a lower contact angle, indicating increased liquid absorbency. Conversely, heat treatment increased the contact angle value making the wood more hydrophobic. Alkyd showed better wettability than acrylic paints, possibly due to their lower viscosity values. This suggests that chemical modification more effectively improves wood coating adhesion.

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Submitted

2025-03-11

Accepted

2025-04-09

Published

2025-04-30

How to Cite

Hanifah, N. P., Wahyuningtyas, I., Kutana, A. N., & Dirna, F. C. (2025). Wettability of Chemically and Thermally Modified of Fast-Growing Teak Wood: Keterbasahan Kayu Jati Cepat Tumbuh Termodifikasi Kimia dan Panas. PERENNIAL, 21(1), 44–51. https://doi.org/10.24259/perennial.v21i1.43479

Issue

Vol. 21 No. 1 (2025): Vol. 21 No. 1, April 2025

Section

Articles