Preliminary study on the sound absorption behavior of spent tea leaves filled with natural rubber latex binder

Kylie Wong, Qumrul Ahsan, Azma Putra, Sivarao Subramonian, Mohd. Jailani Mohd Nor

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Nowadays, sound control has been regarded as one of the important requirements for human comfort. For an instance, control of room acoustic enables the room to achieve a good auditive environment for effective speech deliverance and presentations. Synthetic fibers such as glass wool fiber are commonly used for sound absorption. Over the years, it was discovered that synthetic fibers are expensive and possess potential hazard to environment and human health. Therefore, growing attention has been turned to natural fibers as an alternative to synthetic fibers. This paper demonstrates the feasibility of spent tea leaf (STL) fiber as an eco-friendly sound absorbing material. STL fiber is a by-product which was extracted from tea plant. It is unique with fresh aroma and rich in phenolic extractive content. Three different grades of STL fiber were studied and the acoustic property was analyzed in terms of sound absorption coefficient (SAC). Results showed that all the samples obtained maximum SAC above 0.70 at frequency range of 1993-3861 Hz. Furthermore, it was found that finest STL fiber grade exhibits better acoustic performance among others with a maximum SAC of 0.88 at 1993 Hz. Besides, the effect of latex binder on the acoustic property of STL fiber was also analyzed. Results suggest that the types of latex binder did not influence the acoustic performance of STL fiber. The overall results indicate that STL fiber can be a promising environment-friendly sound absorbing material.

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalJurnal Teknologi
Volume79
Issue number5-2
DOIs
Publication statusPublished - 2017
Externally publishedYes

Fingerprint

Latexes
Binders
Rubber
Acoustic waves
Fibers
Synthetic fibers
Acoustic properties
Acoustics
Wool fibers
Natural fibers
Tea
Glass fibers
Byproducts
Hazards
Health

Keywords

  • Acoustic properties
  • Impedance tube
  • Latex binder
  • Natural fiber
  • Sound absorption coefficient
  • Spent tea leaves

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Preliminary study on the sound absorption behavior of spent tea leaves filled with natural rubber latex binder. / Wong, Kylie; Ahsan, Qumrul; Putra, Azma; Subramonian, Sivarao; Mohd Nor, Mohd. Jailani.

In: Jurnal Teknologi, Vol. 79, No. 5-2, 2017, p. 59-64.

Research output: Contribution to journalArticle

Wong, Kylie ; Ahsan, Qumrul ; Putra, Azma ; Subramonian, Sivarao ; Mohd Nor, Mohd. Jailani. / Preliminary study on the sound absorption behavior of spent tea leaves filled with natural rubber latex binder. In: Jurnal Teknologi. 2017 ; Vol. 79, No. 5-2. pp. 59-64.
@article{0716a933f0db4e3293beb6867bfab464,
title = "Preliminary study on the sound absorption behavior of spent tea leaves filled with natural rubber latex binder",
abstract = "Nowadays, sound control has been regarded as one of the important requirements for human comfort. For an instance, control of room acoustic enables the room to achieve a good auditive environment for effective speech deliverance and presentations. Synthetic fibers such as glass wool fiber are commonly used for sound absorption. Over the years, it was discovered that synthetic fibers are expensive and possess potential hazard to environment and human health. Therefore, growing attention has been turned to natural fibers as an alternative to synthetic fibers. This paper demonstrates the feasibility of spent tea leaf (STL) fiber as an eco-friendly sound absorbing material. STL fiber is a by-product which was extracted from tea plant. It is unique with fresh aroma and rich in phenolic extractive content. Three different grades of STL fiber were studied and the acoustic property was analyzed in terms of sound absorption coefficient (SAC). Results showed that all the samples obtained maximum SAC above 0.70 at frequency range of 1993-3861 Hz. Furthermore, it was found that finest STL fiber grade exhibits better acoustic performance among others with a maximum SAC of 0.88 at 1993 Hz. Besides, the effect of latex binder on the acoustic property of STL fiber was also analyzed. Results suggest that the types of latex binder did not influence the acoustic performance of STL fiber. The overall results indicate that STL fiber can be a promising environment-friendly sound absorbing material.",
keywords = "Acoustic properties, Impedance tube, Latex binder, Natural fiber, Sound absorption coefficient, Spent tea leaves",
author = "Kylie Wong and Qumrul Ahsan and Azma Putra and Sivarao Subramonian and {Mohd Nor}, {Mohd. Jailani}",
year = "2017",
doi = "10.11113/jt.v79.11284",
language = "English",
volume = "79",
pages = "59--64",
journal = "Jurnal Teknologi",
issn = "0127-9696",
publisher = "Penerbit Universiti Teknologi Malaysia",
number = "5-2",

}

TY - JOUR

T1 - Preliminary study on the sound absorption behavior of spent tea leaves filled with natural rubber latex binder

AU - Wong, Kylie

AU - Ahsan, Qumrul

AU - Putra, Azma

AU - Subramonian, Sivarao

AU - Mohd Nor, Mohd. Jailani

PY - 2017

Y1 - 2017

N2 - Nowadays, sound control has been regarded as one of the important requirements for human comfort. For an instance, control of room acoustic enables the room to achieve a good auditive environment for effective speech deliverance and presentations. Synthetic fibers such as glass wool fiber are commonly used for sound absorption. Over the years, it was discovered that synthetic fibers are expensive and possess potential hazard to environment and human health. Therefore, growing attention has been turned to natural fibers as an alternative to synthetic fibers. This paper demonstrates the feasibility of spent tea leaf (STL) fiber as an eco-friendly sound absorbing material. STL fiber is a by-product which was extracted from tea plant. It is unique with fresh aroma and rich in phenolic extractive content. Three different grades of STL fiber were studied and the acoustic property was analyzed in terms of sound absorption coefficient (SAC). Results showed that all the samples obtained maximum SAC above 0.70 at frequency range of 1993-3861 Hz. Furthermore, it was found that finest STL fiber grade exhibits better acoustic performance among others with a maximum SAC of 0.88 at 1993 Hz. Besides, the effect of latex binder on the acoustic property of STL fiber was also analyzed. Results suggest that the types of latex binder did not influence the acoustic performance of STL fiber. The overall results indicate that STL fiber can be a promising environment-friendly sound absorbing material.

AB - Nowadays, sound control has been regarded as one of the important requirements for human comfort. For an instance, control of room acoustic enables the room to achieve a good auditive environment for effective speech deliverance and presentations. Synthetic fibers such as glass wool fiber are commonly used for sound absorption. Over the years, it was discovered that synthetic fibers are expensive and possess potential hazard to environment and human health. Therefore, growing attention has been turned to natural fibers as an alternative to synthetic fibers. This paper demonstrates the feasibility of spent tea leaf (STL) fiber as an eco-friendly sound absorbing material. STL fiber is a by-product which was extracted from tea plant. It is unique with fresh aroma and rich in phenolic extractive content. Three different grades of STL fiber were studied and the acoustic property was analyzed in terms of sound absorption coefficient (SAC). Results showed that all the samples obtained maximum SAC above 0.70 at frequency range of 1993-3861 Hz. Furthermore, it was found that finest STL fiber grade exhibits better acoustic performance among others with a maximum SAC of 0.88 at 1993 Hz. Besides, the effect of latex binder on the acoustic property of STL fiber was also analyzed. Results suggest that the types of latex binder did not influence the acoustic performance of STL fiber. The overall results indicate that STL fiber can be a promising environment-friendly sound absorbing material.

KW - Acoustic properties

KW - Impedance tube

KW - Latex binder

KW - Natural fiber

KW - Sound absorption coefficient

KW - Spent tea leaves

UR - http://www.scopus.com/inward/record.url?scp=85025092596&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85025092596&partnerID=8YFLogxK

U2 - 10.11113/jt.v79.11284

DO - 10.11113/jt.v79.11284

M3 - Article

AN - SCOPUS:85025092596

VL - 79

SP - 59

EP - 64

JO - Jurnal Teknologi

JF - Jurnal Teknologi

SN - 0127-9696

IS - 5-2

ER -