Volume 19, Issue 1 (2019)                   Modares Mechanical Engineering 2019, 19(1): 137-141 | Back to browse issues page

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Salehi M, Musavi A. An Experimental Investigation on Acoustical Insulation Characteristics of the Natural Rubber Reinforced by Polyester Fibers. Modares Mechanical Engineering. 2019; 19 (1) :137-141
URL: http://journals.modares.ac.ir/article-15-18987-en.html
1- Mechanical Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Iran , mehdi.salehi@pmc.iaun.ac.ir
2- Mechanical Engineering Department, Najafabad Branch, Islamic Azad University, Najafabad, Iran
Abstract:   (89 Views)
Considering the hazards of noise pollutions and their increasing trend, nowadays, sound insulations are of the utmost importance. Some available insulating blankets in the market are made of foam and absorb moisture, while the other types of common insulations are fragile and vulnerable. Most of the insulations cannot be used in available construction materials and decrease the beauty of atmosphere. The insulations, which do not have the mentioned problems, are expensive. The current study aims at introducing an insulation, which does not have these problems and resists moisture at a reasonable price. This insulation is made of natural rubber and polyester fibers. It has a considerable flexibility and can be combined with other construction materials. In this experimental study, different samples of one-layer and two-layer natural rubbers with 2.2 mm thickness for each layer were produced with and without fibers in compression molding method. They were tested in various frequencies and compared with the results of common XPS sound insulation. Each of the samples had a good performance in a specific frequency. All samples exhibited an acceptable behavior compared with their peers in the market. Each of the samples performed better at a certain frequency. In conclusion, the best performance is related to the two-layer rubber sample with fibers and the present insulation in the market is in the second rank.
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Received: 2018/04/15 | Accepted: 2018/10/10 | Published: 1901/12/14
* Corresponding Author Address: Najafabad branch, Islamic Azad University, University Square, Najafabad, Isfahan, Iran. Postal Code: 8514143131

References
1. Concha-Barrientos M, Campbell-Lendrum D, Steenlan K. Occupational noise [Internet]. Geneva: World Health Organization; 2004 [cited 2017 May 26]. Available from: http://www.who.int/quantifying_ehimpacts/publications/en/ebd9.pdf [Link]
2. Gholami T, Piran Veyseh P, Aliabadi M, Farhadian M. Study of noise pollution and its effects on subjective fatigue of staff in the governmental banks of Hamadan city. Iran Occupational Health. 2014;11(5):65-73. [Persian] [Link]
3. Aliabadi M, Golmohammadi R, Mansoorizadeh M. Objective approach for analysis of noise source characteristics and acoustic conditions in noisy computerized embroidery workrooms. Environmental Monitoring and Assessment. 2014;186(3):1855-1864. [Link] [DOI:10.1007/s10661-013-3499-2]
4. Bell LH, Bell DH. Industrial noise control: Fundamentals and applications. 2nd Edition. Boca Raton: CRC Press; 1993. [Link]
5. Goettler LA, Shen KS. Short fiber reinforced elastomers. Rubber Chemistry and Technology. 1983;56(3):619-638. [Link] [DOI:10.5254/1.3538144]
6. Wu G, Ao HR, Jiang HY, Izzheurov EA. Calculation of resonant sound absorption parameters for performance evaluation of metal rubber material. Science in China Series E Technological Sciences. 2009;52:3587. [Link] [DOI:10.1007/s11431-009-0373-0]
7. Han Z, Chunsheng L, Kombe T, Thong-On N. Crumb rubber blends in noise absorption study. Materials and Structures. 2008;41(2):383-390. [Link] [DOI:10.1617/s11527-007-9252-y]
8. Holmes N, Browne A, Montague C. Acoustic properties of concrete panels with crumb rubber as a fine aggregate replacement. Construction and Building Materials. 2014;73:195-204. [Link] [DOI:10.1016/j.conbuildmat.2014.09.107]
9. Ghofrani M, Ashori AR, Rezvani MH, Arbabi Ghamsari F. Acoustical properties of plywood/waste tire rubber composite panels. Measurement. 2016;94:382-387. [Link] [DOI:10.1016/j.measurement.2016.08.020]
10. Flores-Medina N, Flores-Medina D, Hernández-Olivares F. Influence of fibers partially coated with rubber from tire recycling as aggregate on the acoustical properties of rubberized concrete. Construction and Building Materials. 2016;129:25-36. [Link] [DOI:10.1016/j.conbuildmat.2016.11.007]
11. Carbajo J, Ramis J, Godinho L, Amado-Mendes P. Modeling of grooved acoustic panels. Applied Acoustics. 2017;120:9-14. [Link] [DOI:10.1016/j.apacoust.2017.01.006]

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