Malaysian Journal of Analytical Sciences Vol 18 No 2 (2014): 343 – 350

 

 

 

THE EFFECT OF BLEND RATIO ON PROPERTIES OF RECYCLED POLYPROPYLENE/RECYCLED HIGH DENSITY

POLYETHYLENE GEO- COMPOSITES

 

(Kesan Nisbah Adunan Ke Atas Sifat-Sifat Geo-Komposit Polipropilena Kitar Semula/Polietilena Ketumpatan Tinggi Kitar Semula)

 

A.A.S Mariam Atiqah, H.Salmah*, Z. Firuz, D.N.U. Lan

 

School of Materials Engineering,

Universiti Malaysia Perlis,Taman Muhibah, Jejawi, 02600 Arau, Perlis,Malaysia

 

*Corresponding author: irsalmah@unimap.edu.my

 

 

Abstract

The effect of blends ratio of Recycled Polypropylene (rPP) and Recycled High Density Polyethylene (rHDPE) on tensile properties of rPP/rHDPE geo-composites were studied. The increasing of rHDPE ratios has decreased the tensile strength and elongation at break of rPP/rHDPE geo-composites, but the modulus of elasticity increased. The effects of rPP ratios have enhance the tensile strength and modulus of elasticity of geo-composites. The elongation of break of rPP/rHDPE was decreased with increasing the rPP content. At similar blends ratio, the rPP/rHDPE geo-composites higher tensile strength and modulus of elasticity compared to rHDPE/rPP geo-composites. The MFI value of rPP/rHDPE higher than rHDPE/rPP blends. The SEM micrograph showed that rPP/rHDPE has smooth failure surface.

 

Keywords: recycled polypropylene, recycled high density polyethylene, tensile properties, blends, geo-composites.

 

Abstrak

Kesan nisbah adunan ke atas sifat- sifat tegangan geo komposit polipropilena kitar semula (rPP)/ polietilena ketumpatan tinggi kitar semula (rHDPE) telah dikaji. Peningkatan nisbah rHDPE telah mengurangkan kekuatan tegangan dan  rPP/rHDPE tetapi meningkatkan ketegangan modulus. Kesan nisbah rPP telah meningkatkan kekuatan tegangan dan pemanjangan geo- komposit. Pemanjagan rPP/rHDPE telah menurun dengan peningkatan kandungan rPP. Pada campuran nisbah yang sama, rPP/rHDPE geo-komposit kekuatan tegangan modulus tinggi berbanding rHDPE/rPP geo-komposit. Nilai MFI adunan rPP/rHDPE lebih tinggi berbanding adunan rHDPE/rPP. Mikrograf SEM menunjukkan rPP/rHDPE mempunyai permukaan yang licin.

 

Kata kunci: polipropilena kitar semula, polietilena ketumpatan tinggi kitar semula, sifat-sifat tegangan, adunan, geo-komposit

 

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