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Effect of Multi-walled Carbon Nanotubes on Mechanical Properties of Feldspar Filled Polypropylene Composites

AIMST University, Semeling, 08100 Bedong, Malaysia, School of Materials and Mineral Resources Engineering Engineering Campus, Seri Ampangan, Universiti Sains Malaysia 14300 Nibong Tebal, Penang, Malaysia

H. Ismail

School of Materials and Mineral Resources Engineering Engineering Campus, Seri Ampangan, Universiti Sains Malaysia 14300 Nibong Tebal, Penang, Malaysia, hanafi{at}eng.usm.my

S.H.S. Zein

School of Chemical Engineering, Engineering Campus, Seri Ampangan Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia

In this study, the effect of multi-walled carbon nanotube (MWCNT) reinforcement on mechanical and morphological properties of MWCNT reinforced feldspar/polypropylene composites was investigated. The composites were compounded in a Polydrive Thermo Haake R600 internal mixer at 180°C and at 50 rpm of rotor speed. Polyethylene co-acrylic acid (PEAA) was used as a processing aid in this study. The structure and dimensions of the MWCNTs were characterized using a transmission electron microscope (TEM). The tensile strength, elongation at break, Young’s modulus, flexural strength, flexural modulus, and impact strength increased with the addition of 0.1 wt% of MWCNT. The morphology and degree of dispersion of the MWCNTs in the feldspar/PP composites at different MWCNT loading was investigated using scanning electron microscopy (SEM). Results indicate that MWCNTs are well distributed and dispersed in feldspar/PP composites particularly at low filler loading, i.e., 0.1 wt%.

Key Words: polypropylene • feldspar • composite • MWCNT • mechanical properties.

This version was published on October 1, 2009

Journal of Reinforced Plastics and Composites, Vol. 28, No. 20, 2473-2485 (2009)
DOI: 10.1177/0731684408092377


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