Computational Approach to Modelling Fracture Behaviour of Polypropylene/Talc Composites
- 1 National Engineering Design Development Institute, Nnewi, Anambra State
- 2 Nnamdi Azikiwe University, Awka, Anambra State
Abstract
Fracture represents one of the major problems associated with the selection and use of engineering materials for high temperature applications. The fracture toughness is of special relevance on the design of components. In this work, the fracture behavior of Polypropylene/Talc composites was studied. From the results of the tensile and flexural tests conducted on the composite, scatter diagrams were made using Microsoft Excel to evaluate and show the effect of the addition of the talc filler as it affects the tensile strength, percentage elongation at break, flexural strength and modulus. In order to give additional analysis, the talc filler content effect was presented mathematically to further describe explicitly the various equations associated with each scatter diagram earlier developed using Microsoft Excel. The mathematical expression developed shows the actual talc filler content on the fracture mechanical properties of the sample composite.
- M. Harikishan and K. Sandeep, “Parameter Analysis of Creep Models of Polypropylene/Calcium Carbonate Nano-composites,” Master’s Thesis, Blekinge Institute of Tech- nology, Karlskrona, 2007.
- E. Manias, “Nanocomposites: Stiffer by Design,” Nature Materials, Vol. 6, 2007, pp. 9-11. doi:10.1038/nmat1812
- G. E. Dieter, “Mechanical Metallurgy,” SI Metric Edition, McGraw Hill, Boston, 1988.
- J. Karger-Kocsis, “Microstructural Aspects of Fracture in Polypropylene and in Its Filled Chopped Fibre and Fibre Mat Reinforced Composites,” In: J. Karger-Kocsis, Ed., Polypropylene: Structure, Blends and Composites: Struc-ture and Morphology Copolymers and Blends Composites, Vol. 3, Chapman and Hall, London, 1995, pp. 142-201.
- C. O. Mgbemena, “Evaluation of the Mechanical Properties of Polypropylene/Calcium Carbonate Nanocomposites at Various Creep Conditions,” Masters’ Thesis, Nnamdi Azikiwe University, Awka, 2010.
- O. A. Okoye, “Fracture Mechanical Behavior of Poly-propylene/Talc Composites,” Master’s Thesis, Nnamd Azikiwe University, Awka, 2011.
- B. Pukánszky, “Particulate Filled Polypropylene: Structure and Properties,” In: J. Karger-Kocsis, Ed., Polypropylene: Structure, Blends and Composites: Structure and Morphology Copolymers and Blends Composites, Vol. 3, Chapman and Hall, London, 1995, pp. 1-70.
- B. Pukánszky, “Fillers for Polypropylene,” In: J. Karger-Kocsis, Ed., Polypropylene. An A-Z Reference, Kluwer Academic, Dordrecht, 1999, pp. 240-246.
- T. H. Ferrigno, “Principles of Filler Selection and Use,” In: H. S. Katz, J. V. Milewski, Eds., Handbook of Fillers and Reinforcements for Plastics, Van Nostrand Reinhold, New York, 1987, pp. 8-62.
- B. Weidenfeller, M. H?fer and F. Schillling, “Cooling Behaviour of Particle Filled Polypropylene during Injection Moulding Process,” Composites Part A: Applied Sci- ence and Manufacturing, Vol. 36, No. 3, 1995, pp. 345- 351.
- K. Friedrich and U. A. Karsch, “Failure Processes in Par-ticulate Filled Polypropylene,” Journal of Materials Sciences, Vol. 16, No. 8, 1981, pp. 2167-2175. doi:10.1007/BF00542377
- Y. Qiu, Z. Lin and K. Mai, “Fracture Morphology of Mg(OH)2/Polypropylene Composites Modified by Functionalized Polypropylene,” Journal of Applied Polymer Science, Vol. 88, No. 9, 2002, pp. 2148-2159. doi:10.1002/app.11763
- L. E. Nielsen and R. F. Landel, “Mechanical Properties of Polymers and Composites,” 2nd Edition, Marcel Dekher, New York, 1994.