Citation
Abdullah, Abdul Hakim and Ishak, Mohamad Ridzwan and Abdan, Khalina and Leman, Zulkiflle and Salit, Mohd Sapuan
(2009)
Comparative study on moisture absorption of kenaf bast and core fibre reinforced unsaturated polyester composites.
In: 9th National Symposium on Polymeric Materials 2009 (NSPM 2009), 14-16 Dec. 2009, Residence Hotel, Uniten, Putrajaya. (pp. 326-331).
Abstract
One of the major drawbacks for natural fibre composites to deal with outside applications is the moisture absorption. This paper describes evaluation of the water absorption capacity of different core fibre and bast fibre on kenaf fibre reinforced unsaturated polyester composite. Bone dry test specimens 5%, 10%, 20%, 30% and 40% of fibre volume fraction were immersed in water for 48 hours. Neat unsaturated polyester specimens were used as a control. Series of SEM analysis were done and shows evidence of composite structures. The core fibres have larger moisture content capacity rather than bast fibres on diameter basis. Finally, it shows that moisture uptake increase with fibre volume fraction increases due to increased voids and eventually cellulose content.
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