Title of article :
Loading Effect of Aluminum Hydroxide onto the Mechanical, Thermal Conductivity, Acoustical and Burning Properties of the Palm-based Polyurethane Composites
Author/Authors :
NOR RABBI’‘ADAWIYAH NORZALI, NOR RABBI’ATUL Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Chemical Science and Food Technology, Malaysia , HAJI BADRI, KHAIRIAH Universiti Kebangsaan Malaysia - Faculty of Science and Technology - Polymer Research Centre, Malaysia , ZAKI NUAWI, MOHD Universiti Kebangsaan Malaysia - Faculty of Engineering and Built Environment - Department of Mechanical and Materials Engineering, Malaysia
Abstract :
Effects of aluminium hydroxide (ATH) addition on the properties of palm-based polyurethane composites were investigated. The hybrid composites were prepared by mixing 10 wt% of oil palm empty fruit bunch fiber (EFB) with 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 and 2301 kPa, respectively at 2 wt% loading of ATH. The compression stress and modulus decreased drastically at 4 wt% (431 kPa and 1659 kPa, respectively) and further decreased at 6 wt% ATH (339 and 1468 kPa, respectively). However, the burning rate is inversely proportional to the loading percentage where the highest burning rate was observed at 2 wt% ATH. Sound absorption analysis indicated a large absorption coefficient at high frequency (4000 Hz) for all samples. The highest absorption coefficient was obtained from PU-EFB/ATH with 4 wt% ATH.
Keywords :
Acoustic property , aluminum hydroxide , burning property , mechanical property , polyurethane composites
