Sandwich Composites of Glass Fibre Panel and Polyurethane/Coconut Coir Foam Core (GFRP - PUC)

Abstract:

In this work, sandwich composite properties were investigated by addition of coconut coir (CC). Fibres in the polyurethane foam cores ranges from 0 to 20 wt.%. Glass fibre reinforced epoxy panels were used as a skin and polyurethane foam as a core, these materials adhesively bonded to keep the whole structure attached with each other. Sandwich composite skins and core-skin bonding were attained via adhesive bonding technique. While polyurethane foam reinforced by coconut coir fibres were manufactured by using one shot process and polyurethane moulding method. Sandwich composite panels with different coir fibres compositions were subjected to the density test, weight per area test and flexural testing in order to investigate their physical and mechanical properties. From the experimental results and analysis, it was found that the sandwich composites with 10 wt.% of coir fibres offer higher mechanical properties.

• Periodical: Key Engineering Materials (Volumes 471-472)
• Pages: 391-396
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.471-472.391
• Online since: February 2011
• Authors: M.A. Azmi, Hasan Zuhudi Abdullah, Maizlinda Izwana Idris
• Keywords: Coconut Coir, One Shot Process, Polyurethane Foam, Polyurethane Moulding

References

[1] P. K Mallick (1993). Fibre Reinforced Composite (Material, Manufacturing And Design),. London: Taylor & Francis Group.

[2] D. Ray, and J. Rout. (2005). Thermoset Biocomposites. In A. K. Mohanty, M. Misra, and L. T. Drzal. (2005). Natural fibres, Biopolymers, and Biocomposites. Florida: CRC Press. p.315.

DOI: 10.1201/9780203508206.ch9

[3] A. Bismark, S. Mishra, and T. Lampke, In A. K. Mohanty, M. Misra, and L. T. Drzal. (2005). Natural fibres, Biopolymers, and Biocomposites. Florida: CRC Press. pp.90-92.

[4] S.K. Mazumdar. (2001). Composites Manufacturing, 1st Ed. Florida : CRC press.

[5] A.G. Mamalis, K. N. Spentzas, N. G. Patelelis, D. E. Monolakus, and MB Lonnidis. Composites Structures. 83(2008), pp.335-340.

[6] W. D. Callister Jr. (2003). Material Science and Engineering An Introduction. 6th Ed. New York: John Wiley & Sons.

[7] P. J. Herrera and A. Valadez-González. In A. K. Mohanty, M. Misra, and L. T. Drzal. (2005). Natural fibres, Biopolymers, and Biocomposites. Florida: CRC Press. Pp. 187; 196-197.

[8] American Society for Testing and Materials (2002). Standard Test Method for Density of Sandwich Core Materials. Philadelphia: ASTM C 271.

[9] American Society for Testing and Materials (2002). Standard Test Method for Core Shear Properties of Sandwich Constructions by Beam Flexure. Philadelphia: ASTM C393.

[10] A. K. Bledzki, W. Zhang and A. Chate, Composites Science and Technology. 61(2001), pp.2405-2411.

[11] D. Ray and Jogeswari Rout. Thermoset Biocomposites. In A. K. Mohanty, M. Misra, and L. T. Drzal. (2005). Natural fibres, Biopolymers, and Biocomposites. Florida: CRC Press. Pp. 315-317.

DOI: 10.1201/9780203508206.ch9