Pengaruh Fraksi Volume Komposit Polyester Berpenguat Limbah Serbuk Kayu Bangkirai terhadap Sifat Material Akustik

Andromeda Dwi Laksono, Lusi Ernawati, Desy Maryanti

Abstract


The use of Glasswool as a commercial sound absorber is growing rapidly nowadays. Unfortunately, this material contains a high silica fiber which is harmful to human health. Herein, we present an improved preparation route of the composite material consisted of natural fiber made from Bangkirai wood waste (Shorea Laevifolia Endert) as a filler and unsaturated polyester as a matrix through hand lay-up method. The absorption testing, reflection, and sound transmission were performed by varying the volume fraction 0, 20, 40, and 60% of Bangkirai wood powder as a filler. It was obtained that the highest value of the sound absorption coefficient (α) contained in the composite with a 60 % volume fraction, which is 0.49, which still approaching the Glasswoll as the standard frequency. The value is also included in the category of Sound Absorption Coefficient Class D with the range 0.30-0.55 based on ISO standard 11654. From the obtained results, this composite material has the potential ability to absorb sound in controlling noise and possibility as a commercial sound absorber.

Keywords


Bangkirai; Composite; Glasswool; Sound Absorption; Wood Waste

Full Text:

PDF

References


L. F. KANDOU, “Hubungan Karakteristik dengan Peningkatan Ambang Pendengaran Penerbang di Balai Kesehatan Penerbangan Jakarta,” Indonesian Journal of Occupational Safety and Health, vol. 2, no. 1, 2014.

R. ERININGSIH, M. WIDODO, and R. MARLINA, “Pembuatan Dan Karakterisasi Peredam Suara Dari Bahan Baku Serat Alam,” Arena Tekstil, vol. 29, no. 1, 2014.

L. J. A. HAMSAH, “Analisa Redaman Suara Komposit Resin Polyester yang Berpenguat Serbuk Kayu Jati,” ENTHALPY, vol. 1, no. 01, 2016.

F. A. EVEREST and K. POHLMANN, Master Handbook of Acoustics. McGraw-Hill/TAB Electronics, 2009.

S.-P. G. FIBERS, “Certain Glass Wool Fibers (Inhalable).”

H. HARSI, N. H. SARI, and S. SINAREP, “Karakteristik Kekuatan Bending Dan Kekuatan Tekan Komposit Serat Hybrid Kapas/gelas Sebagai Pengganti Produk Kayu,” Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin, vol. 5, no. 2, 2015.

J. BIAŁEK and E. NOWICKA, Comparison of sound absorption ratings calculated according to ISO and ASTM standards. 2016.

A. MANSUR, “Limbah Pemanenan dan Faktor Eksploitasi Iuphhk-ha PT. Rizki Kacida Reana–kabupaten Paser Provinsi Kalimantan Timur,” Agrifor, vol. 12, no. 2, pp. 116–131, 2013.

K. EL-FARAHATY, A. SADIK, and A. HEZMA, “Study of Optical and Structure Properties of Polyester (PET) and Copolyester (PETG) Fibers by Interferometry,” International Journal of Polymeric Materials, vol. 56, pp. 715–728, Jul. 2007.

K. KAHARUDDIN and A. KUSUMAWANTO, “Rekayasa Matarial Akustik Ruang Dalam Desain Bangunan: Studi Kasus Rumah Tinggal Sekitar Bandara Adisutjipto Yogyakarta,” in Forum Teknik, 2012, vol. 34, no. 1.

R. IRAWAN, S. SUWANDI, and H. BETHANINGTYAS, “Analisis Koefisien Absorbsi Pada Material Berbahan Baku Kertas Duplex Menggunakan Tabung Impedansi,” eProceedings of Engineering, vol. 1, no. 1, 2014.

M. J. M. NOR, N. JAMALUDIN, and F. M. TAMIRI, “A preliminary study of sound absorption using multi-layer coconut coir fibers,” Electronic Journal Technical Acoustics, vol. 3, pp. 1–8, 2004.

S. ISLAM, M. D. SUKARDAN, E. NOVARINI, and F. ADITYA, “Porous Absorber of Noise Control Panel Manufacturing from Coconut Fiber and Pet Waste Fiber (Shoody Fiber)”, Arena Tekstil, vol. 33, no. 2, 2018.

R. KRISTIANI, I. YAHYA, and H. HARJANA, “Kinerja Serapan Bunyi Komposit Ampas Tebu Berdasarkan Variasi Ketebalan Dan Jumlah Quarter Wavelength Resonator Terhadap Kinerja Bunyi,” Jurnal Fisika dan Aplikasinya, vol. 10, no. 1, pp. 14–18, 2014.

T. KOIZUMI, N. TSUJIUCHI, and A. ADACHI, “The development of sound absorbing materials using natural bamboo fibers,” WIT Transactions on The Built Environment, vol. 59, 2002.

K. WATANABE, Y. MINEMURA, K. NEMOTO, and H. SUGAWARA, “Development of high-performance all-polyester sound-absorbing materials,” JSAE review, vol. 20, no. 3, pp. 357–362, 1999.

R. F. BARRON, “Industrial noise control and acoustics,” 2003.




DOI: https://doi.org/10.21776/ub.jrm.2019.010.03.8

Refbacks

  • There are currently no refbacks.


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