Effect of aluminium hydroxide loading on the compression stress and modulus, thermal conductivity and acoustic properties of palm-based polyurethane hybrid composite

Nor Rabbi’atul ‘Adawiyah Norzali, and Khairiah Hj Badri, and Mohd Zaki Nuawi, (2011) Effect of aluminium hydroxide loading on the compression stress and modulus, thermal conductivity and acoustic properties of palm-based polyurethane hybrid composite. Sains Malaysiana, 40 (4). pp. 379-384. ISSN 0126-6039

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Abstract

The effect of adding aluminum hydroxide (ATH) in the palm-based polyurethane hybrid composite was studied. The compression stress and modulus, thermal conductivity and acoustic property were determined. The hybrid composite was prepared by adding 10 wt% of oil palm empty fruit bunch fibre (EFB) followed by ATH at varying amount of 2, 4 and 6 wt% of the overall mass of the resin. The compression stress and modulus gave the highest values of 575 kPa and 2301 kPa, respectively at 2 wt% ATH. At 4 wt% ATH, the compression stress and modulus decreased to 431 kPa and 1659 kPa, respectively and further decreased at 6 wt% ATH to 339 kPa and 1468 kPa respectively. The k-value increased with the increment of the ATH loading exhibited a poor thermal conductivity. Sound absorption analysis indicated that the absorption coefficient was higher at higher frequency (4000 Hz) for all samples with PU-EFB/ATH with 4% ATH showed the highest absorption coefficient.

Item Type:Article
Keywords:Acoustic property; aluminum hydroxide; palm-based polyurethane; thermal conductivity
Journal:Sains Malaysiana
ID Code:2404
Deposited By: Mr Azam
Deposited On:02 Aug 2011 00:53
Last Modified:14 Dec 2016 06:31

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