Abstract
The development of thermoplastic elastomer blends from waste tire powder and two polyolefins, Viz. maleic anhydride grafted polypropylene and LDPE, was studied. The polymer blends were processed using a twin-screw extruder equipped with a well-designed screw configuration. The blends studied contained a dispersed phase of waste rubber powder obtained from waste tire in a thermoplastic matrix. The effect of ultrasonic treatment on the rubber powder was compared. Contrary to our expectation, ultrasonically treated samples gave poor mechanical properties compared to untreated samples. Significant improvement in the mechanical properties was obtained with the addition of maleic anhydride-grafted styrene-ethylene-butylene-styrene (SEBS-g-MA) as a compatibilizer in treated and untreated waste tire powder / polyolefin blends.
Highlights
Anhydride grafted polypropylene and linear density polyethylene (LDPE), was studied
Significant improvement in the mechanical properties was obtained with the addition of maleic anhydride-grafted styrene-ethylene-butylene-styrene (SEBS-g-MA) as a compatibilizer in treated and untreated waste tire powder / polyolefin blends
The purpose of this study is to develop a thermoplastic elastomer blend of waste rubber and olefins polymer
Summary
Anhydride grafted polypropylene and LDPE, was studied. The polymer blends were processed using a twin-screw extruder equipped with a well-designed screw configuration. Significant improvement in the mechanical properties was obtained with the addition of maleic anhydride-grafted styrene-ethylene-butylene-styrene (SEBS-g-MA) as a compatibilizer in treated and untreated waste tire powder / polyolefin blends. Blending recycled rubber with other materials the world and after its product life is mainly reused as ther- has been an attractive alternative in waste rubber mal energy source. Its chief drawback has been the difficulty recycling of these waste rubbers, such as waste rubber tires, in obtaining adequate properties from the resultant blen-. Conventional rubber products are produced both thermoplastic elastomers and rubber-touthermosets based on a process of fabricating a part that in- ghened plastics. Results of these numerous studies on vir-
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