Ultrafine Wollastonite Reinforced Polypropylene/Ethylene Propylene Diene Rubber Thermoplastic Elastomers

Saowaroj Chuayjuljit; Thatisorn Karnjanamayul

doi:10.4028/www.scientific.net/AMR.488-489.945

Paper Titles

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Comparative Study of Platinum/Single Wall Carbon Nanotube versus Platinum/Carbon Black Coating
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Monoaromatic Pollutant Removal by Carbon Nanotubes from Aqueous Solution
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Microwave Assisted Ultra Fast Synthesis of 1-D Molybdenum Oxide Nanocrystals: Structural and Electrical Studies
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Ultrafine Wollastonite Reinforced Polypropylene/Ethylene Propylene Diene Rubber Thermoplastic Elastomers
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Synthesis of Polyaniline by Pulsed Plasma Polymerization Using Theta-Pinch Device
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Mechano-Chemical Synthesis of TiB₂-Al₂O₃ Nano-Composite by Reaction between TiO₂, B₂O₃ and Al
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Surface Modification of Aluminum Alloy Using Plasma Based Ion Implantation and Deposition
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Hydration Dehydration Effect on Morphology and Basic Strength of Nano-Calcium Oxide
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Ultrafine Wollastonite Reinforced Polypropylene/Ethylene Propylene Diene Rubber Thermoplastic Elastomers

Abstract:

In this study, tensile properties, thermal stability and morphology of polypropylene/ethylene propylene diene rubber/wollastonite (PP/EPDM/wollastonite) thermoplastic elastomer composites were tested and evaluated as a function of their compositions in comparison with PP/EPDM blends and native PP. PP was melt mixed with two loadings of EPDM (20 and 30% (w/w)) and for the composites each of these with three loadings of wollastonite (10, 20 and 30 parts by weight per hundred of the PP/EPDM resin) on a twin screw extruder and then injection molded. Both PP/EPDM blends provided a higher elongation at break but a lower tensile strength and Young’s modulus as compared with those of the neat PP. However, the addition of wollastonite microparticles (particle size of 1200 mesh) into the blends increased the Young’s modulus in a dose-dependent manner with increasing wollastonite loadings, whilst the tensile strength and elongation at break were decreased. Moreover, the thermal stability was improved by the presence of either EPDM or wollastonite in the PP matrix.