Effect Of Mixing Ratio On The Mechanical Properties Of Polypropylene Composite

Hazwani, Hilmi (2013) Effect Of Mixing Ratio On The Mechanical Properties Of Polypropylene Composite. Project Report. UTeM, Melaka. (Submitted)

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Abstract

This project focuses on the effect of mixing ratio on the mechanical properties of polypropylene composites. The objective of this experiment is to investigate the mechanical properties of material using tensile test. The experiment was performed at Polymer Laboratory and Materials Laboratory located in Faculty of Manufacturing Engineering, UTeM. Three ratios of the kenaf fibre-PP composite were used: 10%: 90%, 30%:70% and 50%:50%. The shape of the specimen used was dog bone shape. The hot pressing machine for producing kenaf fibre-PP composite samples was used. The mechanical properties of kenaf fibre-PP composite and polypropylene were obtained by tensile test. From this study, it is found that the tensile modulus increases with increasing the kenaf loading. However, pure polypropylene shows higher reading value in tensile strength but low reading value in tensile modulus compared to polypropylene composite. Further, the elongation at break for PP composites (K10:0.610%, K10/1:1.033%, K10/3:1.233%, K105:1.237%, K30:0.407%, K30/1:0.513%, K30/3:0.617%, K30/5:0.817%, K50:0.200%, K50/1:0.407%, K50/3:0.407% and K50/5:0.510%) shows lower results than pure polypropylene, 0.613%. Thus, the samples of PP composite with binder were better in tensile strength, tensile modulus and elongation at break than those without binder.

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