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- W4317517870 abstract "The present study deals with the sound absorption performance of natural fibres from the oil palm frond (OPF), mainly considered agricultural waste. Therefore, this study aimed to investigate the sound absorption performance of OPF fibre-reinforced composite under normal incidence sound. The materials used were OPF particles and urea-formaldehyde was used as an adhesive. The particleboards were produced with three particle sizes and four target densities. The absorption coefficient of normal incidence sound (αn) was tested using an impedance tube. The effects of particle size and bulk density were also evaluated. The findings reveal thatαn exceeded 0.45 at 1000 Hz and could reach 0.95 above 3.3 kHz. This occurred when the bulk density of the OPF composite particleboards ranged between 0.3–0.4 g/cm3, and the particle size varied between medium to coarse. The results also indicated that the absorption frequency and the degree of αn significantly increased as the bulk density decreased. Therefore, OPF fibres can be used to create sound-absorbing composite particleboards." @default.
- W4317517870 created "2023-01-20" @default.
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- W4317517870 date "2023-01-18" @default.
- W4317517870 modified "2023-10-14" @default.
- W4317517870 title "Influence of Particle Size and Bulk Density on Sound Absorption Performance of Oil Palm Frond-Reinforced Composites Particleboard" @default.
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- W4317517870 doi "https://doi.org/10.3390/polym15030510" @default.
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