Background and aims: Nowadays, artificial insulators such as fiberglass
and rock wool are used as sound absorbers in developing countries. The present
study is performed to introduce new sound absorbing materials used in developed
countries and discuss their acoustical characteristics. It also aims to look at
the efficiency of sound absorber natural materials (green materials) as an alternative
to commercial materials with a synthetic base used in different places.
Methods: In order to identify new porous absorbents, their mechanism of action
and various applications, a search was conducted by using keywords such as
“Sound Absorbent”, “Natural Noise Absorbent” and “Passive Absorber” in PubMed,
Scopus, Science Direct, ProQuest, Springer, Web of Knowledge, Magiran, SID,
IranMedex and Google Scholar. We selected 48 review and original research
papers that were about natural and recycled absorbents. Results: Most recent
research includes production and optimization of sound absorbers using natural
and recycled materials. The aim of all of these researches was producing green
absorber materials in accordance with environmental regulations. In order to
properly use these materials, in addition to knowing the benefits and suitability
of absorbers for use in the intended environment, the effective factors in
sound absorption such as fiber size, air flow resistance, porosity, curve,
thickness and density of absorbers were considered. Conclusion: In comparison
to old absorbents, new materials are safer and lighter and enjoy a more efficient
technology. It seems like environmental friendly, degradable, recyclable and
green noise absorbents will play on important role in the market of noise
absorbents in the future. Also because of the place and different uses of
absorbent materials, specialists should consider the limitations of the
environment and the acoustic characteristics of the absorbents.
Cite this paper
Ravandi, M. R. G. , Mardi, H. , Langari, A. A. A. , Mohammadian, M. and Khanjani, N. (2015). A Review on the Acoustical Properties of Natural and Synthetic Noise Absorbents. Open Access Library Journal, 2, e1598. doi: http://dx.doi.org/10.4236/oalib.1101598.
Rmili, W., Ouahabi, A., Serra, R. and Kious, M. (2009) Tool
Wear Monitoring in Turning Processes Using Vibratory Analysis. International Journal of Acoustics and
Vibration, 14, 4-11.
Nahvi, H.,
Fouladi, M.H. and Nor, M.J.M. (2009) Evaluation of Whole-Body Vibration and Ride Comfort in a Passenger
Car. International Journal of
Acoustics and Vibration, 14, 143-149.
Asdrubali, F., Ed. (2006) Survey on the Acoustical Properties of New
Sustainable Materials for Noise Control. Proceedings of the Euronoise 2006 Conference, 30 May-1 June 2006,
Tampere.
Nick, A., Becker, U.
and Thoma, W. (2002) Improved Acoustic Behavior of Interior Parts of
Renewable Resources in the Automotive Industry. Journal of Polymers and the Environment, 10, 115-118. http://dx.doi.org/10.1023/A:1021124214818
Koizumi, T., Tsujiuchi, N.
and Fujita, K., Eds. (2004) Performance
Improvement of Sound-Absorbing Materials Using Natural Bamboo Fibers and Their
Application. WIT Press Publishing Services, Ashurst.
Zent, A.
and Long, J.T. (2007) Automotive Sound Absorbing Material Survey
Results. SAE Technical Paper 2007-01- 2186. http://dx.doi.org/10.4271/2007-01-2186
Yang, H.S., Kim, D.J.
and Kim, H.J. (2003) Rice Straw and Wood Particle Composite for Sound Absorbing Wooden
Construction Materials. Bioresource
Technology, 86, 117-121. http://dx.doi.org/10.1016/S0960-8524(02)00163-3
Zulkifli, R., Zulkarnain, M.
and Nor, M.J.M.
(2010) Noise Control Using Coconut Coir Fiber Sound
Absorber with Porous Layer Backing and Perforated Panel. American Journal of Applied Sciences, 7, 260-264. http://dx.doi.org/10.3844/ajassp.2010.260.264
Ilgun, A., Cogurcu, M.T., Ozdemir, C., Kalipci, E.
and Sahinkaya, S. (2010) Determination of Sound Transfer Coefficient of
Boron Added Waste Cellulosic and Paper Mixture Panels. Scientific Research and Essays, 5, 1530-1535.
Yang, H.S., Kim, D.J., Lee, Y.K., Kim, H.J., Jeon, J.Y.
and Kang, C.W.
(2004) Possibility of Using Waste Tire Composites
Reinforced with Rice Straw as Construction Materials. Bioresource Technology, 95, 61-65. http://dx.doi.org/10.1016/j.biortech.2004.02.002
Antonio, Q.R., Ed. (2010) Measurement of the Sound-Absorption Coefficient
on Egg Cartons Using the Tone Burst Method. World Scientific and Engineering Academy and
Society (WSEAS), Stevens Point.
Alamdari, Z.G.,
Khavanin, A. and Kokabi, M. (2008) Manufacturing Sound Absorber Based on Combined Recycling of
Polyethylene Trephetalat and Polystyrene at Low and Median Frequencies. Audiology, 17, 63-69.
Crocker, M.J.
and Arenas, J.P.
(2007) Use of Sound Absorbing Materials. In: Crocker, M.J., Ed., Handbook
of Noise and Vibration Control, John Wiley and Sons, New York, 696-713. http://dx.doi.org/10.1002/9780470209707.ch57
Kazragis, A., Gailius, A.
and Juknevi, A.
(2002) Thermal and Acoustical Insulating Materials
Containing Mineral and Polymeric Binders with Cellulose Fillers. Materials Science, 8, 193-195.
Magrini, U.
and Ricciardi, P.
(2000) Surface Sound Acoustical Absorption and
Application of Panels Composed of Granular Porous Materials. Proceedings of theInter-Noise, Nice, 27-30 August
2000.
Attenborough, K.
and Umnova, O. (2005) Chapter
8: Acoustics of Rigid-Porous Materials. In: Wright, M.C.M., Ed., Lecture
Notes on the Mathematics of Acoustics, Imperial College Press, London, 157.
Del Rey, R., Alba, J.
and Sanch, A.S.V., Eds. (2007) Proposal of an Empirical Model for
Absorbent Acoustical Materials Based in Kenaf. Proceedings of the 19th
International Congress on Acoustics, Madrid, 2-7 September 2007, 3361-3366.
Koizumi, T.,
Ed. (2002) The Development of Sound Absorbing Materials Using Natural Bamboo
Fibers and Their Acoustic Properties. Proceedings of theInter-Noise, Dearborn, 19-21 August 2002.
Jiejun, W., Chenggong, L., Dianbin, W.
and Manchang, G. (2003) Damping and Sound Absorption Properties of Particle
Reinforced Al Matrix Composite Foams. Composites
Science and Technology, 63, 569-574. http://dx.doi.org/10.1016/S0266-3538(02)00215-4
Banhart, J. (2001) Manufacture, Characterisation and Application
of Cellular Metals and Metal Foams. Progress
in Materials Science, 46,
559-632. http://dx.doi.org/10.1016/S0079-6425(00)00002-5
Wu, X.,
Chen, Z.H., Feng, Y.L., Liu, X.P. and Li, X.L. (2011) Fabrication of Micro-Honeycomb Ceramics by Cloth Fabric Pore-Forming. Transactions of Nonferrous Metals Society of
China, 21, 2665-2670. http://dx.doi.org/10.1016/S1003-6326(11)61108-4
Scheffler, M.
and Colombo, P. (2005) Cellular Ceramics: Structure, Manufacturing,
Properties and Applications. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Dong, W., Faltens, T., Pantell, M., Simon, D.
and Thompson, T., Eds. (2009) Acoustic Properties of Organic/Inorganic
Composite Aerogels. Cambridge University Press, Cambridge.
Crocker, M.J., Li, Z.
and Arenas, J.P.
(2005) Measurements of Tyre/Road Noise and of Acoustical
Properties of Porous Road Surfaces. International
Journal of Acoustics and Vibration, 10, 52-60.
Furstoss, M., Thenail, D.
and Galland, M.A.
(1997) Surface Impedance Control for Sound Absorption:
Direct and Hybrid Passive/Active Strategies. Journal of
Sound and Vibration, 203, 219-236. http://dx.doi.org/10.1006/jsvi.1996.0905
Leroy, P., Berry, A., Attala, N.
and Herzog, P. (2008) “Smart Foams” for
Enhancing Acoustic Absorption. Proceedings of theAcoustics’ 08 Conference, Paris, 29 June-4 July 2008.
Leroy, P., Atalla, N., Berry, A.
and Herzog, P. (2009) Three Dimensional Finite Element Modeling of
Smart Foam. The Journal of the Acoustical
Society of America, 126, 2873-2885. http://dx.doi.org/10.1121/1.3238241
Tascan, M.
and Vaughn, E.A.
(2008) Effects of Fiber Denier, Fiber Cross-Sectional
Shape and Fabric Density on Acoustical Behavior of Vertically Lapped Nonwoven
Fabrics. Journal of Engineering Fibers
and Films, 3, 32-38.
Tascan, M.
and Vaughn, E.A.
(2008) Effects of Total Surface Area and Fabric
Density on the Acoustical Behavior of Needlepunched Nonwoven Fabrics. Textile Research Journal, 78, 289-296. http://dx.doi.org/10.1177/0040517507084283
Seddeq, H.S.
(2009) Factors Influencing Acoustic Performance of
Sound Absorptive Materials. Australian
Journal of Basic and Applied Sciences, 3, 4610-4617.
Allard, J.F., Depollier, C. and Guignouard, P. (1989) Free Field Surface
Impedance Measurements of
Sound-Absorbing Materials with Surface Coatings. Applied Acoustics, 26, 199-207. http://dx.doi.org/10.1016/0003-682X(89)90053-4
Knapen, E., Lanoye, R., Vermeir, G., Lauriks, W.
and Van Gemert, D., Eds. (2004) Sound Absorption by Polymer-Modified
Porouscement Mortars. Aedificatio
Publishers, Freiburg.
Castagnede, B., Aknine, A., Brouard, B.
and Tarnow, V. (2000) Effects of Compression on the Sound Absorption
of Fibrous Materials. Applied Acoustics, 61, 173-182. http://dx.doi.org/10.1016/S0003-682X(00)00003-7