Jovan Hilmansyah Rantepadang, Heru Suryanto, Aminnudin Aminnudin, Yanuar Rohmat Aji Pradana, J.S. Binoj, Jibril Maulana, Rahmad Ikrom Ramadhan
Natural fiber from Pineapple has some advantages, such as renewable, non-cytotoxic, and excellent mechanical properties. However, the mechanical properties of PALF could be improved using chemical treatment. This study's purpose is to analyze the mechanical properties of PALF treated by 2,2,6,6-Tetramethylpiperidine-1-oxyl/TEMPO. The methods were, firstly, an alkalization process using 6% Sodium Hydroxide (NaOH) to remove layers and impurities in PALF. Alkalized PALF was then treated with TEMPO at a concentration of 1.0, 2.0, and 3.0 mM. Treated fibers were dried at 60°C for 4 h in the oven. Mechanical properties were analyzed using Single Fiber Tensile Tester. Results indicate that oxidation treatment could affect the mechanical properties of pineapple leaf fiber (PALF). Each sample, namely PALF, Alkalized PALF, and oxidated PALF at the concentration of 1.0, 2.0, and 3.0 mM, has a tensile strength of 230, 496, 1167, 732, and 901 MPa, respectively. Differences occur due to various total areas of samples. Young's Modulus of alkalized PALF and TEMPO at a concentration of 1.0, 2.0, and 3.0 mM are 6.4, 17.2, 18.1, and 22.7 GPa, respectively. Young's Modulus escalation was affected by fibrillation after treatments that made each surface of fibers expand and strengthen the bond of each individual fibril. The loss of the surface layer also influenced the tensile strength of treated PALF. © 2025 American Institute of Physics Inc.. All rights reserved.
Mechanical Engineering Department, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Center of Excellence for Cellulose Composite (CECCom), Mechanical Engineering Department, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Institute of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Tamilnadu, 602105, India
