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http://dx.doi.org/10.7473/EC.2011.46.3.251

Effect of Poly(propylene-co-octene) as a Compatibilizer on Mechanical Properties and Weldline Characteristics of Polypropylene/Poly(ethylene-co-octene) Blends

Koo, Hyo-Seon (Advanced Materials Science and Engineering, College of Engineering, Kongju National University)
Son, Young-Gon (Advanced Materials Science and Engineering, College of Engineering, Kongju National University)

Publication Information

Elastomers and Composites / v.46, no.3, 2011 , pp. 251-256 More about this Journal

Abstract

Effect of poly(propylene-co-octene) as a compatibilizer in toughened polypropylene/ poly(ethylene-co-octene) (EOC) was investigated. The EOCs used were metallocene catalyzed commercial linear low density polyethylene and they are elastomeric materials. The poly(propylene-co-octene) was synthesized by metallocene catalyst in our laboratory to be used as a compatibilizer in PP/EOC blends. PP/EOC blends without compatibilizer shows very low mechanical properties in specimens with weldlines while incorporation of a compatibilizer significantly increases the mechanical properties of specimens with weldlines. However, compatibilized PP/EOC blends does not show increased impact property in a weldline free specimen and it is attributed to low molecular weight of the poly(propylene-co-octene) synthesized in present study. It is expected that the poly(propylene-co-octene) having increased molecular weight provides very good performance as an effective compatibilizer in toughened polypropylene/EOC blends.

Keywords

polypropylene; poly(ethylene-co-octene); poly(propylene-co-octene); weldline;

Citations & Related Records

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