The Physical and Sound Absorption Property of Lightweight Rigid Polyurethane Composite Reinforced Bamboo Fiber for Roof Applications

Roseli, Adyla Illyana and Mat Hassan, Nik Normunira and Abdul Mutalib Leman, Abdul Mutalib Leman and Abdul Latif, Najibah and Yulfian Aminanda, Yulfian Aminanda and Djoko Setyanto, Djoko Setyanto and Yuyun Tajunnusa, Yuyun Tajunnusa and Yonrapach Areerob, Yonrapach Areerob and Methawee Nukunudompanich, Methawee Nukunudompanich (2023) The Physical and Sound Absorption Property of Lightweight Rigid Polyurethane Composite Reinforced Bamboo Fiber for Roof Applications. Journal of Advanced Research in Applied Sciences and Engineering Technology, 31 (2). pp. 268-280. ISSN 2462-1943

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Official URL: https://doi.org/10.37934/araset.31.2.268280

Abstract

Rigid polyurethane (RPU) foams as roof insulation have become increasingly popular in Southeast Asian countries and have been extensively used for absorbing sound and reducing noise because of their good sound damping, viscoelasticity, and low density. In this study, the RPU foam composite reinforced bamboo fiber was investigated by physical characterization by SEM, TGA, and FTIR, and the sound absorption was measured by the Impedance Tube Test. The morphology result of the RPU foam composite indicates the size of the diameter pore influenced the sound absorption by adding bamboo fiber as a filler. The thermal degradation of the presence of lignin in the bamboo fiber at the temperature range of 400 °C to 500 °C and the total weight loss is 76 % at 429 °C temperature. FTIR spectrum shows that the peak at 2890 to 2935 cm-1 are indicated –CH stretching vibrations and characteristics for bamboo fiber can be used in polymer composites. The sound absorption of RPU 25 foam composite reinforced bamboo fiber was found 0.74 absorbance at a frequency of 1250 Hz. RPU foam reinforced bamboo fiber as a filler has the highest transmission loss RPU 35 is 21 dB at a frequency range of 1600 Hz. The findings indicate by increasing the content of bamboo fiber as filler, the diameter of the open pore of RPU 25 and RPU 35 foam composite had the potential for sound absorption to absorb at low frequency to achieve greater sound absorption for roof insulation.

Item Type:	Article
Uncontrolled Keywords:	Rigid Polyurethane; bamboo fiber; sound absorption
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering Technology > Department of Mechnical Engineering Technology
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	15 Jan 2024 07:29
Last Modified:	15 Jan 2024 07:29
URI:	http://eprints.uthm.edu.my/id/eprint/10581

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