Fiber Weight Fraction Effect to Acoustic Properties of RHDPE Cantula Composite

Muhammad Taufik Burhany Hendrowarsito, Wijang Wisnu Raharjo, Dwi Aries Himawanto

Abstract

In this study, composites made from recycled HDPE and Cantula fiber have been done and the absorption coefficient have been measured. Composites rHDPE-Cantula were made using hot press for approximately 60 minutes with 170oC temperature while pressure exerted by 50 bar. In this study the weight ratio of Cantula fiber was varied 40%, 50%, 60%, and 70%. Impedance Tube Method was used to measure the sound absorption coefficient in accordance with ASTM E 1050. An increase weight ratio wasn’t influence the sound absorption coefficient significantly, but the optimum sound absorption coefficient shifted to the higher frequencies from 80-200 Hz. An increase weight ratio showed better sound absorption coefficient from 500-1600 Hz, but the result from 60% weight ratio showed low sound absorption coefficient that may caused by it high density leading to the reduction of porosity. This result was supported by density measurement in accordance with ASTM D 792, which the result showed that the sound absorption coefficient increase with decreasing of the density.

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References

Y. Abdullah, A. Putra, H. Efendy, W. M. Farid, and M. R. Ayob, “Investigation on Natural Waste Fibers from Dried Paddy Straw as a Sustainable Acoustic Absorber” IEEE First Conference on Clean Energy and Technology CET , pp. 311–314, 2011.

B. Ekici, A. Kentli, and H. Küçük, “Improving Sound Absorption Property of Polyurethane Foams by Adding Tea-Leaf Fibers,” Archives of Acoustics, vol. 37, no. 4, pp. 515–520, 2012.

R. Eriningsih, “KompositSerat Rami Dan Limbah Rami Sebagai Bahan Absorpsi Suara,” Arena Tekstil, vol. 24, no. 1, pp. 51–59, 2009.

E. Gunawan, A. I. Adhyaksa, & R. L. Cabuy, “Influence of Sawdust Size and Ratio of HDPE Waste on The Physical Properties of Wood- Plastics Composite,” Int. J. of Basic and Applied Sci., vol. 12, no. 04, pp. 38–42, 2012.

E. Jayamani and S. Hamdan, “Sound Absorption Coefficients Natural Fibre Reinforced Composites,” Advanced Mater. Research, vol. 701, pp. 53–58, 2013.

Y. M. Kartikaratri and A. Subagio, “Pembuatan komposit serat serabut kelapa dan resin,” vol. 15, no. 3, pp. 87–90, 2012.

R. Kristiani and I. Yahya, “Kinerja Serapan Bunyi Komposit Ampas Te bu Berdasarkan Variasi Ketebalan dan Jumlah Quarter Wavelength Resonator terhadap KinerjaBunyi,” vol. 10, no. 1, pp. 1–5, 2014.

Y. Lei, Q. Wu, F. Yao and Y. Xu, “Preparation and properties of recycled HDPE/natural fiber composites,” Composites Part A: Applied Science and Manufacturing, vol. 38, no. 7, pp. 1664–1674, 2007.

Z. Xiodan and X. Fan, “Enhancing low frequency sound absorption of micro-perforated panel absorbers by using mechanical impedance plates,” Applied Acoustics, vol. 88, pp. 123–128, 2015.

M. H. Zainulabidin, M. Rani, Nezere, N., and A. Tobi “Optimum Sound Absorption by Materials Fraction Combination” Int. J. of Mecha. & Mechatronics Eng., vol 14, no. 02, pp. 118 –121, 201

DOI: https://doi.org/10.20961/mekanika.v16i2.35058

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