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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 663Sound Absorption Property of Agricultural...

Sound Absorption Property of Agricultural Lignocellulsic Residue Fiber Reinforced Polymer Matrix Composites

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Abstract:

In this research, the sound absorption coefficients of polymer matrix reinforced lignocellulosic fiber composites were investigated. The sound absorbing characteristic of composites was investigated in the impedance tube, according to transfer function method. A two microphone setup was fabricated according to American society for testing materials ASTM E1050-10 and it is used to measure sound absorption coefficients of composites. In this investigation, the influences of two kinds of polymer matrix (Polypropylene and Urea-formaldehyde) and two kinds of natural fibers (rice straw and kenaf) were studied for sound absorption coefficients. Four samples of novel sound absorbers were made with different matrix and fibers composition, Sample 1 and 2 was made of rice straw reinforced with polypropylene and Urea-formaldehyde and Sample 3 and 4 was made with kenaf fiber reinforced with polypropylene and Urea-formaldehyde matrix. Sound absorption coefficients were measured at frequencies from 300 Hz to 2000 Hz. The results showed when the frequencies increased, sound absorption increased until it reached a frequency of 2000 Hz but at 1200 Hz sound absorption decreased for all the samples this is due to specific character of natural fibers. From the result, the kind of natural fiber did not have significant influences on sound absorption coefficients. As results it was found that the matrix influence more in sound absorption properties in low frequencies; and due to that fact the above composites are low sound absorbing materials; but still they are better than other construction materials available in sound absorbing properties.

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Periodical:

Applied Mechanics and Materials (Volume 663)

Pages:

464-468

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.663.464

Citation:

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Online since:

October 2014

Authors:

Elammaran Jayamani, Sinin Hamdan, Soon Kok Heng, Md. Rezaur Rahman

Keywords:

Impedance Tube, Natural Fiber Composites, Sound Absorption Coefficient

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[1] C.H. Hansen, Fundamentals of acoustics, Department of Mechanical Engineering, University of Adelaide, Australia, 2006, pp.23-52.

[2] K.A. Jayaraman, Acoustical absorptive properties of nonwovens, MSc. thesis, the Graduate Faculty of North Carolina State University, USA (2005).

[3] Y. Mohd Yhazri, The potential of agriculture waste material for noise insulator application toward green design and material, J. of Civil and Environmental Engineering. 10, 5 (2010) 16-20.

[4] S.Y. Han, Possibility of using waste tire composites reinforced with rice straw as construction materials, Bioresource Technology. 95 (2004) 61-65.

DOI: 10.1016/j.biortech.2004.02.002

[5] R. Zulkifli, Acoustic properties of multi-layer coir fibres sound absorption panel, Journal of Applied Science, Asian Network for Scientific Information. 8, 20 (2008) 3709-3714.

DOI: 10.3923/jas.2008.3709.3714

[6] F.C. Campbell, Introduction to Composite Material, ASM International, (2010).

[7] Hong Zhou, Bo Li, Guangsu Huang, Sound absorption characteristics of polymer particles, Journal of Applied Polymer Science. 101, 4 (2006) 2675-2679.

DOI: 10.1002/app.23911

[8] Jorge P. Arenas, Malcolm J. Crocker, Recent trends in porous sound-absorbing materials, Sound & Vibration, 2010, pp.12-17.

[9] Ancuta Borlea, Tiberiu Rusu, Silviu Ionescu, Mihaiella Cretu, Adina Ionescu, Acoustical materials-sound absorbing materials made of pine sawdust, Romanian Journal of Acoustics and Vibration. 8 (2011) 95-98.

[10] Z. Tao, D.W. Herrin, A.F. Seybert, Measuring Bulk properties of sound absorbing materials using the two source method, Society of Automotive Engineers, 2003, pp.1-6.

DOI: 10.4271/2003-01-1586

[11] Lindawati Iamail, Mohd. Imran Ghazali, Sound absorption of Arenga pinnata natural fiber, World Academy of Science, Engineering and Technology. 4 (2010) 601-603.

[12] C.N. Wang, J.H. Torng, Experimental study of the absorption characteristics of some porous fibrous materials, Applied Acoustics. 62 (2001) 1447-459.

DOI: 10.1016/s0003-682x(00)00043-8

[13] J. Khedari, S. Charoenvai, J. Hirunlabh, S. Teekasap, New low-cost insulation particle boards from mixture of durian peel and coconut coir, Build. Environ. 39 (2004) 59-65.

DOI: 10.1016/j.buildenv.2003.08.001

[14] H.S. Yang, D.J. Kim, H.J. Kim, Rice straw–wood particle composite for sound absorbing wooden construction materials, Bio-resource Technology. 86 (2003) 117-121.

DOI: 10.1016/s0960-8524(02)00163-3

[15] Rozli Zulkifli, Zulkarnain, Mohd Jailani Mohd Nor, Noise control using coconut coir fiber sound absorber with porous layer backing and perforated panel, American Journal of Applied Sciences. 7, 2 (2006) 260-264.

DOI: 10.3844/ajassp.2010.260.264

[16] M. Avella, G. La Rota, E. Martuscelli, M. Raimo, P. Sadocco, G. Elegir, Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) and wheat straw fiber composites: thermal, mechanical properties and biodegradation behaviour, J. Mater. Sci. 35 (2000) 829-836.

DOI: 10.1023/a:1004773603516

[17] D. Thomas, Acoustics - Determination of Sound Absorption Coefficient and Impedance in Impedance Tubes - Part 2: Transfer Function Method, Springer, (2001).

DOI: 10.3403/02552411