International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

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DOI Prefix: 10.47001/IRJIET

Composite Materials of Sound Absorption Polyurethane Foam, Pineapple Fiber and Banana Fiber

RohmatDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University Jl. Prof. Sudharto, SH, Tembalang, SemarangSulardjakaDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University Jl. Prof. Sudharto, SH, Tembalang, SemarangAchmad WidodoDepartment of Mechanical Engineering, Faculty of Engineering, Diponegoro University Jl. Prof. Sudharto, SH, Tembalang, Semarang

Vol 6 No 9 (2022): Volume 6, Issue 9, September 2022 | Pages: 95-99

International Research Journal of Innovations in Engineering and Technology

OPEN ACCESS | Research Article | Published Date: 03-10-2022

doi Logo doi.org/10.47001/IRJIET/2022.609015

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Abstract

Research has been carried out on the sound absorption properties of sound-absorbing materials made from Pineapple Leaf Fiber, PUF, and Banana Trunk Fiber with the resin matrix. Absorbent in the ratio of 2:1, 1:1, and 1:2. The research method was carried out first by making samples by taking pineapple leaf fiber and banana fiber, and decomposing the alkaline treatment fiber with 4% NaOH for 4 hours. Rinse with aquades until clean then dry. Composite molding was carried out with a Hot Press for 240 seconds at a temperature of 1100C. Then the sound absorption test was carried out using a signal generator and sound level meter concerning the principle of the E-1050 impedance tube method, at a ratio of fiber: matrix 2:1 capable of absorbing sound at a frequency of 400 Hz at = 300 Hz.

Keywords

Composite, Sound Absorption, Polyurethane Foam, Pineapple Fiber, Banana Fiber


Citation of this Article

Rohmat, Sulardjaka, Achmad Widodo, “Composite Materials of Sound Absorption Polyurethane Foam, Pineapple Fiber and Banana Fiber” Published in International Research Journal of Innovations in Engineering and Technology - IRJIET, Volume 6, Issue 9, pp 95-99, September 2022. Article DOI https://doi.org/10.47001/IRJIET/2022.609015

Licence Copyright (c) 2026 International Research Journal of Innovations in Engineering and Technology creative common licence This work is licensed under Creative common Attribution Non Commercial 4.0 Internation Licence
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