Investigation of Acoustic Properties of Polymer Nanocomposites Polymer Regarding Combined Sound Absorption and Insulation Characteristics

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

HAJIZADEH ROOHALAH; KHAVANIN ALI; JONIDI JAFARI AHMAD; BARMAR MOHAMMAD; FARHANG DEHGHAN SOMAYEH

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Health and Safety at Work Year:2020 | Volume:9 | Issue:4 Page(s): 311-323

Download Full-Text

Persian Verion

View:

1,143

Download:

917

Cites:

Information Journal Paper

Title

Investigation of Acoustic Properties of Polymer Nanocomposites Polymer Regarding Combined Sound Absorption and Insulation Characteristics

Author(s)

Keywords

NoiseQ1

transmission lossQ1

absorption coefficientQ1

PolyurethaneQ1

nanofiberQ1

nanoparticleQ1

Abstract

Introduction: Nowadays multiple techniques have been developed to Noise control. One the most important way is the control based on sound absorption and insulation. The purpose of current study was to improve the acoustic properties of soft Polyurethane foam regarding combined sound absorption and insulation characteristics. Materials and Methods: Polyacrylonitrile and polyvinylidine fluoride nanofibers are fabricated using solution electrospinning technique. Nano-clay particles (montmorillonite, 1-2 nm in diameter) were purchased from Sigma-Aldrich, Inc. Experimental design was prepared using Design-Expert ver. 7 software. The 50 samples of nanocomposites were fabricated on the basis of experimental run. The measurement of sound transmission loss and the absorption coefficient was conducted using BSWA SW477 550005 Impedance Tubes according to the standard ASTM E2611-09 and ISO10534-2, techniques. Response surface methodology (RSM) with central composite design (CCD) was applied to optimize the conditions to produce nanocomposites for each frequency range. Results: The polymer nanocomposites had the higher combined sound transmission loss and the absorption coefficient than pure Polyurethane foam. Their combined transmission loss and the absorption coefficient in the low, middle and high frequency range was 02. 02, 1. 91 and 2. 53 times higher than the pure polymer. The combined transmission loss and the absorption coefficient in all frequency ranges have been increased by increasing the thickness of the composites and air gap. At a thickness of 2 cm, the combined composites, sound transmission loss and the absorption coefficient increased with the increase of content of both nanofibers. The highest combined transmission loss and the absorption coefficient was observed when mass fraction of nanofibers was in at its maximum level. Conclusion: This study showed that the adding nano-clay particles, polyacrylonitrile and polyvinylidine fluoride nanofibers to Polyurethane foam can lead to increased sound transmission loss and the absorption coefficient. The obtained optimized nanocomposite can be applied to Noise control where requiring the absorption as well as reduction of sound transmission.

Cites

Feasibility study of silica aerogel nanocomposites application to enhance acoustic properties

References

No record.

Cite

APA: Copy

HAJIZADEH, ROOHALAH, KHAVANIN, ALI, JONIDI JAFARI, AHMAD, BARMAR, MOHAMMAD, & FARHANG DEHGHAN, SOMAYEH. (2020). Investigation of Acoustic Properties of Polymer Nanocomposites Polymer Regarding Combined Sound Absorption and Insulation Characteristics. JOURNAL OF HEALTH AND SAFETY AT WORK, 9(4), 311-323. SID. https://sid.ir/paper/367577/en

Vancouver: Copy

HAJIZADEH ROOHALAH, KHAVANIN ALI, JONIDI JAFARI AHMAD, BARMAR MOHAMMAD, FARHANG DEHGHAN SOMAYEH. Investigation of Acoustic Properties of Polymer Nanocomposites Polymer Regarding Combined Sound Absorption and Insulation Characteristics. JOURNAL OF HEALTH AND SAFETY AT WORK[Internet]. 2020;9(4):311-323. Available from: https://sid.ir/paper/367577/en

IEEE: Copy

ROOHALAH HAJIZADEH, ALI KHAVANIN, AHMAD JONIDI JAFARI, MOHAMMAD BARMAR, and SOMAYEH FARHANG DEHGHAN, “Investigation of Acoustic Properties of Polymer Nanocomposites Polymer Regarding Combined Sound Absorption and Insulation Characteristics,” JOURNAL OF HEALTH AND SAFETY AT WORK, vol. 9, no. 4, pp. 311–323, 2020, [Online]. Available: https://sid.ir/paper/367577/en

Related Journal Papers