Effects of Particle Size and Loading on Tensile and Flexural Properties of Polypropylene Reinforced Doum Palm Shell Particles Composites
Natural Particulates (fillers) are reinforcement in composite materials. They are used in matrix for cost reduction, improved processing, density control, thermal conductivity, control of thermal expansion, flame retardancy and improved mechanical properties. Doum palm shell particles reinforced composite was prepared by compounding polypropylene matrix with 10 - 40 wt. % Doum palm shell particles at 5 wt. % intervals for 150 µm and 300 µm particles sizes using compression moulding techniques. The effect of the particles size and particles loading on tensile and flexural properties of the composite produced were investigated. The results showed that the tensile strength increased from 34.12 MPa for neat polypropylene to a maximum of 44.88 MPa at 10 wt. % Doum palm shell addition for 150 µm particle size; while it increased to a maximum of 39.62 MPa at 10 wt. % Doum palm shell addition for 300 µm particle size. Flexural strength increased from 37.91 MPa for neat polypropylene to a maximum of 57.68 MPa at 10 wt. % Doum palm shell addition for 150 µm particle sizes; however, it increased to a maximum of 49.63 MPa at 10 wt. % Doum palm shell addition for the 300 µm particle size. 150 µm particle size composite yield a better result compared to 300 µm particles size which is in agreement with the literature, the smaller the particle size the better the properties of the composite because it has better compaction, reduced porosity which give effective stress transfer between the matrix and the particles. The use of doum palm shell as fillers in composite will not only provide a renewable source of filler in polymer composite but also generate a non – food source of economic development for the famers in the rural areas.
Osman A, (2009) Mechanical Properties of Glass-Fibre Reinforced Epoxy Composite Filled with Al2O3. Particles. J. Reinf. Plast. Compos. 28 2861- 2867.
Yilmaz, MG Unal, H & Mimaroglu A (2008) Study of the strength and erosive behavior of CaCO3/glass fiber reinforced polyester composite Express Polym Lett 2, 890-895
Bhagyashekar M.S. &. Rao R.M.V.G.K (2010) Characterization of Mechanical Behavior of Metallic and Non-metallic Particulate Filled Epoxy Matrix Composites Journal of Reinforced Plastics and Composites 29: 30
Tisserat, B. Reifschneider, L. Grewell, D.& Srinivasan, G. (2014) “Effect of particle size, coupling agent and DDGS additions on Paulownia wood polypropylene composites,” Journal of Reinforced Plastics & Composites, vol. 33, no. 14, pp. 1279–1293,.].
Bhaskar, J. Singh V.K. (2013) Physical and Mechanical Properties of Coconut Shell Particle Reinforced-Epoxy Composite J. Mater. Environ. Sci. 4 (2) (2013) 227-232
Herrera-Franco, P. J., & Valadez-González, A. (2004). “Mechanical properties of continuous natural fibre-reinforced polymer composites,” Compos. Part A- Appl. S. 35(3), 339-345. DOI: 10.1016/j.compositesa.2003.09.012
Fletcher, R. (1997). Listing of useful plants of the world. Australian New Crops http://www.newcrops.uq.edu.au/listing/hyphaenethebaica
Moussa, H., Hank A. Margolis, H.A., Dube, P. & Odongo, J. (1998). Factors Affecting the Germination of Doum Palm (Hyphaene thebaica Mart.) Seeds from the Semi-Arid Zone of Niger, West Africa. Forest Ecology and Management. Elsevier Science Direct. 104: 27 – 41.
Okpanachi G. E., & Ogakwu P. l.,( 2010). Effects of fiber surface treatment on the mechanical properties of ukam fiber reinforced polyester composites, Journal of Engineering and Applied Sciences, 2, p. 1-12.
ASTM standard D638 (2002) Standard test method for testing tensile properties of plastics Annual book of ASTM standards
ASTM D-790 (2003). “Test methods for flexural properties of unreinforced and reinforced plastics and electrical insulating materials,”ASTM International, West Conshohocken, USA.
Durowaye, S. I., Lawal, G. I., & Olagbaju O. I., (2014). Microstructure and Mechanical Properties of Sisal Particles Reinforced Polypropylene Composite, International Journal of Composite Materials p-ISSN: 2166-479X e-ISSN: 2166-4919 4(4): 190-195
Hassan S.B., Aigbodion V.S. &Patrick a S.N. (2012). Development of Polyester/Eggshell Particulate Composites. Tribology in Industry Vol. 34, 4:217-225
Onuegbu G C. & Igwe I O. (2012) Studies on Properties of Egg Shell and Fish Bone Powder Filled Polypropylene. American Journal of Polymer Science, 2(4): 56-61
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