Aprilliana, Nana and Hidayat, Wahyu and Asmara, Sandi and Lubis, Muhammad Adly Rahandi and Bakri, Samsul and Hidayati, Sri (2022) Effect of Natural Rubber Latex Adhesive Content on the Physical and Mechanical Properties of Agriboard from Cassava Stem Wastes. AIP Conference Proceedings, 2563. 040005. ISSN 0094-243X

2022-Effect of natural rubber latex adhesive content on the physical and mechanical properties of agriboard from cassava stem wastes.pdf

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Official URL: https://aip.scitation.org/doi/abs/10.1063/5.010311...


Indonesia is one of the largest cassava producers globally, where the cassava wastes have not been optimally utilized yet. Cassava stems are lignocellulosic materials that are potential as raw materials for composite boards. This study aims to determine the effect of the adhesive content of Natural Rubber Latex (NRL) adhesive on the physical and mechanical properties of particleboard from the waste of cassava stems (agriboard). The NRL-based adhesives were formulated from natural rubber, poly(vinyl) alcohol, and isocyanate. The levels of NRL adhesive used were 10%, 15%, and 20%. The agriboard panels were prepared with a size of 400 mm×400 mm×10 mm and a target density of 0.7 g/cm3. The board was hot-pressed at 60°C under 10 MPa of pressure for 30 minutes. Evaluation of physical and mechanical properties was done according to JIS 5908-2003 standard. The results showed that the density of agriboard ranged from 0.65–0.74 g/cm3, and the moisture content was around 4.51–5.34%. Water absorption and thickness swelling of agriboard panel ranged from 61.84–70.84% and 23.67–28.77%, respectively. The results revealed that the dimensional stability of agriboard increased with the higher adhesive content, indicating that the urethane linkages produced from the reaction between –NCO of isocyanate and –OH of cassava stems enhanced the adhesion strength of the panel. The MOE and MOR values of agriboard were in the range of 229.20-331.38 MPa and 2.49-3.13 MPa, respectively. The mechanical properties of the panel also increased with higher adhesive content, and the optimum result was obtained by using 20% of adhesive content. In addition, the NRL-bonded panel did not emit formaldehyde, as the panel did not bond with formaldehyde-based adhesives. The results showed that cassava stems and NRL adhesive could be used as an alternative composite product that is renewable and environmentally friendly, particularly for non-structural and interior applications. Keywords: cassava stem, composite board, natural rubber latex, adhesive content, bio-based adhesive.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
S Agriculture > SD Forestry
Divisions: Fakultas Pertanian (FP) > Prodi Kehutanan
Depositing User: Wahyu Hidayat
Date Deposited: 07 Nov 2022 01:39
Last Modified: 07 Nov 2022 01:39
URI: http://repository.lppm.unila.ac.id/id/eprint/46317

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