Analysis of Sound Insulation Capability and Modulus Elasticity according to Shape and Composition of Natural Fiber Composite Kayu Galam (Melaleuca leucadendra) - Polyester

Ammar Farhan Rayudi, Firman Sidiq, Sulistijono Sulistijono, Abdi Suprayitno

Abstract


Making and testing of sound insulation materials from natural fiber composite (Galam wood fiber and polyester matrix) to analyze sound transmission loss and modulus of elasticity. Wood material chosen due to the availability of abundant so easyily obtained and also a waste Galam wood is wasted in the process of building construction. Natural fiber shape that used is sawdust and wood chips and using unsaturated polyester as matrix. Speciment made in disc shape with 10 cm of diameter and 6 mm thick. Sound intensity measured in insulated room with sound level meter and speaker as sensor and source and run with variation in frequency of transmitted sound wave. With sound transmission loss theory, sound insulating capability could be analyzed. Measurement of modulus of elasticity is needed as a consideration in their application. The result of this research are sound insulation property is less than matrices even the critical frequency was reduced and elasticity was increasing with increasing of the composition of the filler material.

Keywords


Composite; Galam Wood; Polyester; Sound Insulation; Elasticity

Full Text:

PDF

References


Callister, W. D., & Rethwisch, D. G. (2010). Materials Science and Engineering An Introduction Library of Congress Cataloging-in-Publication Data. New York: John Wiley & Sons.

Han, T., Wang, X., Xiong, Y., Li, J., Guo, S., & Chen, G. (2015). Light-weight poly(vinyl chloride)-based soundproofing composites with foam/film alternating multilayered structure. Composites Part A: Applied Science and Manufacturing, 78, 27–34. https://doi.org/10.1016/J.COMPOSITESA.2015.07.013

Zhao, J., Wang, X.-M., Chang, J. M., Yao, Y., & Cui, Q. (2010). Sound insulation property of wood–waste tire rubber composite. Composites Science and Technology, 70(14), 2033–2038. https://doi.org/10.1016/J.COMPSCITECH.2010.03.015




DOI: http://dx.doi.org/10.12962/j23546026.y2018i4.3839

Refbacks

  • There are currently no refbacks.


View my Stat: Click Here

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.