International Journal of Advanced and Applied Sciences
Int. j. adv. appl. sci.
Print ISSN: 2313-626X
Volume 4, Issue 3 (March 2017), Pages: 1-6
Title: Mechanical properties of recycled glass fibre reinforced nanoclay/unsaturated polyester composites
Author(s): Umar Abdul Hanan 1, Shukur Abu Hassan 1, 2, *, Mat Uzir Wahit 2, 3, Rohana Yusof 4, Balqis Omar 5, Siti Khalijah Jamal 1
1Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
2Centre for Composites, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
3Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
4Institute of Industrial Technology, Universiti Kuala Lumpur Malaysian, 81750 Bandar Seri Alam, Johor, Malaysia
5Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
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The purpose of this study is to study the effects of montmorillonite (MMT) nanofiller on the mechanical properties of glass fibre recyclates (rGF) reinforced unsaturated polyester (UP) composites. Alumina-silicates nanoclay such as MMT can improves the mechanical performance of polymeric composites. This study uses the mechanical recycling process to grind the GFRP waste into recyclates. MMT nanoclay was dispersed into UP using ultrasonicator. Different weight percentage of rGF at 25 wt.%, 30 wt.% and 40 wt.% were mixed in UP-MMT resin and formed into composites plate using compression moulding. Preliminary study shows that, the tensile strength of 25 wt.% raw rGF-UP composites was approximately 50% lower than of UP. Therefore, raw rGF was sieved into coarse and fine grade to improve the tensile properties of the composites. Compared to raw rGF, sieved rGF has better tensile strength due to better fibre distribution of rGF and uniformed fibre length. Coarse rGF composites which contain relatively larger aspect ratio (longer fibre length) have better tensile properties than fine rGF. The inclusion of MMT nanofiller in polyester resin enables the tensile strength of the composites to increase. For example, the tensile strength of 40 wt.% fine rGF-3 wt.% MMT hybrid composites is higher by 14% than the non-hybrid 40 wt.% fine rGF. Scanning electron microscopy shows good fibre/resin adhesion for MMT below 3 wt.%. While at 5 wt.% MMT, the UP resin becomes degraded and developed poor adhesion of resin to the recyclate fibres.
© 2017 The Authors. Published by IASE.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keywords: Mechanical recycling, MMT nanoclay, GFRP recyclates, Tensile properties, Scanning electron microscopy
Article History: Received 4 November 2016, Received in revised form 5 January 2017, Accepted 5 January 2017
Digital Object Identifier:
Hanan UA, Hassan SA, Wahit MU, Yusof R, Omar B, and Jamal SK (2017). Mechanical properties of recycled glass fibre reinforced nanoclay/unsaturated polyester composites. International Journal of Advanced and Applied Sciences, 4(3): 1-6
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