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Influence of high doping of TiO2 of polymeric foam for acoustic study

Mohd Rus, Anika Zafiah and M. A., Bainun Akmal and Mat Hassan, Nuur Nasyrah (2013) Influence of high doping of TiO2 of polymeric foam for acoustic study. In: Advanced Materials Engineering and Technology (ICAMET 2013) , 28-29 November 2013, Bandung, Indonesia .

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Abstract

Titanium dioxide represents an effective photocatalyst for water and air purification and for self-cleaning surfaces. The purpose of this study is to determine sound absorption property of polymer foam of high doping of Titanium Dioxide (TiO2) which are 20%, 40%, 60%, 80% and 100%. The acoustic study of the samples was measured by using impedance tube test according to the ASTM E-1050 to determined sound absorption coefficient (α) and noise reduction coefficient method (NRC). The highest α is 0.999 observed from the polymer foam doped with 60% of TiO2 at high frequency level of 4000 Hz. Meanwhile, the highest doping of TiO2 polymer foam shows remarkable characteristic of low level frequency absorption at 2000 Hz. Thus, different percentage of TiO2 doped in polymer foam can be used successfully to alter the characteristic of sound absorption property in a systematic way according to the request application.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: titanium dioxide; high doping; sound absorption coefficient
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA365-367 Acoustics in engineering. Acoustical engineering
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Normajihan Abd. Rahman
Date Deposited: 24 Sep 2014 09:21
Last Modified: 24 Sep 2014 09:21
URI: http://eprints.uthm.edu.my/id/eprint/4787
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