Comparison of Melt Flow and Mechanical Properties of Rice Husk and Kenaf Hybrid Composites

Abstract:

This research is to identify the difference in melt flow and mechanical properties in hybrid composites between kenaf and rice husk that each of the filler was compounded with composite material of calcium carbonate (CaCO3) and high density polyethylene (HDPE) in different loading amount. Different filler loading up to 30 parts of kenaf fibers and rice husk particulate were mixed with the fixed 30% amount of CaCO3. Compounded hybrid composite were prepared and tested for melt flow index, tensile and impact strength. Addition of both fillers had decreased melt flow index (MFI). MFI of rice husk/CaCO3 was higher than kenaf/CaCO3 in HDPE composites. Tensile strength, elongation at break and impact properties of both hybrid composites had decreased with increasing filler content. Tensile strength of kenaf/CaCO3 was higher than rice husk/CaCO3 due to intrinsic fiber structure of kenaf which has some reinforcing effect compared to rice husk. While, impact strength of rice husk/CaCO3 was improved with addition of filler but drastically decrease as the rice husk content were increased up to 30% due to high silica content in rice husk. The Youngs Modulus was increased with addition of natural fibers in CaCO3/HDPE composite.

• Periodical: Advanced Materials Research (Volume 701)
• Pages: 42-46
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.701.42
• Online since: May 2013
• Authors: Abd Aziz Noor Zuhaira, Rahmah Mohamed
• Keywords: Calcium Carbonate, Hybrid Composite, Mechanical Property, Melt Flow Index, Natural Materials

References

[1] H. P. S. A. K. M. Jawaid, "Cellulosic/synthetic fibre reinforced polymer hybrid composites: A review," Carbohydrates Polymers, vol. 86, pp.1-8, 2011.

DOI: 10.1016/j.carbpol.2011.04.043

[2] M. B. A. B. Y. W. Leong, Z. A. Mohd Ishak, A. Ariffin, "Characterization of talc/calcium carbonate filled polypropylene hybrid composites weathered in a natural environment " Polymer Degradation and Stability, vol. 83, pp.411-422, 2004.

DOI: 10.1016/j.polymdegradstab.2003.08.004

[3] M. T. Jamal Mirbagheri, Ismaeil Ghasemi and John C. Hermason, "Prediction of the elastic modulus of wood flour/kenaffibre/polypropylene hybrid composites," Iranian Polymer Journal, vol. 16, pp.271-278, 2007.

[4] J. Z. L. C.Y. Tang, "A study of the melt flow behaviour of ABS/calcium carbonate composites," Journal of Materials Processing Technology, vol. 138, pp.408-410, 2003.

DOI: 10.1016/s0924-0136(03)00108-0

[5] H. J. K. Han Seung Yang, Jungil Son, Hee Jun Park, Bum Jae Lee, Taek Sung Hwang, "Rise husk flour filled polypropylene composites; mechanical and morphological study," Composites Structures, vol. 63, pp.305-312, 2004.

DOI: 10.1016/s0263-8223(03)00179-x

[6] H. J. K. Han Seung Yang, Jungil Son, Hee Jun Park, Bum Jae Lee, Taek Sung Hwang, "Effect of compatibilizing agents on rice husk flour reinforced polypropylene composites," Composites Structures, vol. 77, pp.45-55, 2007.

DOI: 10.1016/j.compstruct.2005.06.005

[7] M. S. L. Silvia Luciana Favaro, Alberto Goncalves Vieira de Carvalho Neto, Ricardo Rogeria de Santana, Eduardo Radovanovic, "Chemical, morphological, and mechanical analysis of rice husk/post-consumer polyethylene composites," Composites : Part A, vol. 41, pp.154-160, 2010.

DOI: 10.1016/j.compositesa.2009.09.021

[8] H. I. Xuan Viet Cao, Azura A. Rashid, Tsutomu Takeichi, Thao Vo-Huu, "Mechanical properties and water absorption of kenaf powder filled recycled hugh density polyethylene/natural rubber biocomposites using MAPE as a compatibilizer," BioResource, vol. 6, pp.3260-3271, 2011.

DOI: 10.15376/biores.6.3.3260-3271

[9] H. I. Hattotuwa G.B. Premalal, A.Baharin "Comparison of the mechanical properties of rice husk powder filled polypropylene composites with talc filled polypropylene composites " Polymer Testing, vol. 21, pp.833-839, 2002.

DOI: 10.1016/s0142-9418(02)00018-1

[10] R. Z. H. Hanim, M. Y. Ahmad Fuad, Z. A. Mohd. Ishak, Azman Hassan, "The effect of Calcium Carbonate Nanofiller on the mechanical properties and cystallisation of polypropylene," Malaysian Polymer Journal, vol. 3, pp.38-49, 2008.