Effect of Volume Fraction Filler on Sound Insulation in Oil Palm Fronds Fiber Composite Polyester Matrix

Firman Sidiq, Sulistijono Sulistijono, Ika Ismail

Abstract


In this study, the effect of adding palm fiber rods to the polyester matrix for sound insulation purposes was investigated. The type of fiber used is short fibers with random orientation with the percentage difference in the amount of fiber in the composite as a comparison. Testing loss of voice transmission using impedance tube method is done to know the ability of material to reduce or prevent sound. The data obtained from the TL test results were analyzed and the STC (sound transmission class) values were calculated on each sample. The best results obtained are in the first and second samples with the percentage of fiber 0% and fiber 30%. The calculated results of the STC values in samples one and two each have 32.1 dB and 31.6 dB which indicates sufficient ability to defeat the loud noise. Based on these results, a composite with a 30% fiber content can be used as a sound insulation material and can reduce waste of palm oil that is underutilized.

Keywords


Sound Insulation; Impedance Tube; Composite; Oil Palm Frond

Full Text:

PDF

References


Asdrubali, F. (2006). Survey on The Acoustical Properties of New Sustainable Materials for Noise Control. Euronoise.

Everest, F. A. (Frederick A., & Pohlmann, K. C. (2009). Master handbook of acoustics. (5th ed.). New York .: McGraw-Hill.

Rwawiire, S., Tomkova, B., Militky, J., Hes, L., & Kale, B. M. (2017). Acoustic and thermal properties of a cellulose nonwoven natural fabric (barkcloth). Applied Acoustics, 116, 177–183. https://doi.org/10.1016/J.APACOUST.2016.09.027

Setyanto, R. H., Priyadithama, I., & Maharani, N. (2011). Pengaruh Faktor Jenis Kertas, Kerapatan dan Persentase Perekat Terhadap Kekuatan Bending Komposit Panel Serap Bunyi Berbahan Dasar Limbah Kertas dan Serabut Kelapa. PERFORMA : Media Ilmiah Teknik Industri, 10(2), 89–94. https://doi.org/10.20961/PERFORMA.10.2.13860

Sistiani Departemen, D., Hutan, H., Kehutanan, F., Sistiani, D., Karlinasari, L., & Hermawan, D. (2011). Pengujian Panel Akustik Komposit Wol Mangium (Acacia mangium Willd) Berkerapatan Sedang. Institut Pertanian Bogor. Retrieved from http://repository.ipb.ac.id/jspui/bitstream/123456789/47275/1/E11dsi.pdf

Zhu, X., Kim, B.-J., Wang, Q., & Wu, Q. (2013). Recent Advances in the Sound Insulation Properties of Bio-based Materials. BioResources, 9(1), 1764–1786. https://doi.org/10.15376/biores.9.1.1764-1786




DOI: http://dx.doi.org/10.12962/j23546026.y2018i4.3841

Refbacks

  • There are currently no refbacks.


View my Stat: Click Here

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.