Surface Wettability and Colour Change of Betung Bamboo Strands Treated with 1% NaOH under Various Immersing Times

  • Rio Ardiansyah Murda Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia
  • Sena Maulana Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia
  • Silvia Uthari Nuzaverra Mayang Mangurai Faculty of Forestry, Tanjungpura University, West Kalimantan, Indonesia
  • Fajar Aditya Julyatmojo Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia
  • Astri Aulia Suwanda Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia
  • Muhammad Saeful Fadlan Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Abstract

Bamboo was a material with enormous potential to be used as raw material for various purposes. This material has good properties for structural purposes such as buildings and furniture or converted to a composite product such as bamboo oriented strand board (BOSB). This study was aimed to determine the wettability properties and the colour change of Dendrocalamus asper bamboo strands after alkali immersing treatment with 1% NaOH solution. The treatments were carried out for 1, 2, and 3 hours, respectively. The wettability of surfaces is quantified by computing the value of the K parameter or the contact angle change rate constant. Meanwhile, the colour change parameter of bamboo strands was quantified by portable colour difference meter CDX – 105 to determine the brightness intensity of a combination of red–green and blue-yellow. The results show that the wettability properties of bamboo strands were getting better after the treatments. On the other hand, the bamboo strands' colour was darker due to the alkali immersion treatment. The optimum duration of alkali immersing treatment with 1% NaOH was 2 hours.

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Author Biographies

Rio Ardiansyah Murda, Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Sena Maulana, Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

a. Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

c. Advanced Materials Research and Innovation Center, Institut Teknologi Sumatera, South Lampung, Indonesia

Silvia Uthari Nuzaverra Mayang Mangurai, Faculty of Forestry, Tanjungpura University, West Kalimantan, Indonesia

Faculty of Forestry, Tanjungpura University, West Kalimantan, Indonesia

Fajar Aditya Julyatmojo, Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Astri Aulia Suwanda, Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Muhammad Saeful Fadlan, Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

Forestry Engineering Department, Institut Teknologi Sumatera, South Lampung, Indonesia

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Published
2022-06-06
How to Cite
MURDA, Rio Ardiansyah et al. Surface Wettability and Colour Change of Betung Bamboo Strands Treated with 1% NaOH under Various Immersing Times. Journal of Science and Applicative Technology, [S.l.], v. 6, n. 1, p. 57-63, june 2022. ISSN 2581-0545. Available at: <https://journal.itera.ac.id/index.php/jsat/article/view/914>. Date accessed: 27 sep. 2022. doi: https://doi.org/10.35472/jsat.v6i1.914.