Evaluation of Addition ABS and EPDM Effect on the Mechanical Properties of Ternary Polymer Blends

Sihama Issa Salih

doi:10.11648/j.ijmsa.20150401.18

Abstract

Polymer blends are capable of providing materials with extended useful properties beyond the range that can be obtained from single polymer. Blends of polystyrene (PS) and polypropylene (PP) with adding acrylonitrile-butadiene-styrene (ABS) or ethylene propylene diene monomer (EPDM) are prepared in different ratios by melt blending technique which was carried out using a double screw extruder. The tensile, flexural, impact and hardness tests of all the prepared samples were study. The results from this work show that the elongation property and impact properties for blend system increase with increase PP content in polymer blend of (PS:PP), also increase value of these properties with increase the ratio of adding (ABS or EPDM) for polymer blend (PS:5%PP).The highest values of impact strength was (10.68Kj/m2) for ternary polymers blend (90%PS:5%PP:5%EPDM) and the high values of fracture toughness (6.125MPa√m ) for ternaty polymer blend (90%PS:5%PP:5%ABS).

Highlights

Polymer blend are generated by the mixing of two or more polymers to gather in order to combine the characteristic of individual polymers
The achievement of the compatibilization, whether by addition of third component or by inducing in situ chemical reaction between blend components, has played a pertinent role in the development of polymer blend, typical example for immiscible polymer blends is blend of polypropylene (PP) and polystyrene (PS) which are two of the most widely used plastics in the world .PS is a brittle and amorphous polymer which belongs to the aromatic group whereas PP is a semi-crystalline and ductile polymer belongs to aliphatic group with straight carbon chains
The results showed that (SEP) diblock copolymer, act as a compotibilizer in (PP/PS) immiscible blends, can diminish the coalescence of the dispersed particles, reduce their average particle size, change their phase morphologies significant, and increase the mechanical properties, it was found that StyreneEthylene/Propylene diblock copolymer (SEP) has better compatibilization effect on the PP/PS (20/80) blend [4]

Summary

Introduction

Polymer blend are generated by the mixing of two or more polymers to gather in order to combine the characteristic of individual polymers. The achievement of the compatibilization, whether by addition of third component (compatibilizer) or by inducing in situ chemical reaction between blend components, has played a pertinent role in the development of polymer blend, typical example for immiscible polymer blends is blend of polypropylene (PP) and polystyrene (PS) which are two of the most widely used plastics in the world .PS is a brittle and amorphous polymer which belongs to the aromatic group whereas PP is a semi-crystalline and ductile polymer belongs to aliphatic group with straight carbon chains To make both PP and PS compatible requires an intermediate substance which can bond them together while maintaining their respective properties [2]

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Conclusion