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Article: Polypropylene-(ethylene-propylene) heterophasic copolymer [PP-EP]/EVA systems.(Morphological and mechanical properties of polypropylene [PP]/poly(ethylene vinyl acetate) [EVA] blends, part 2)(Statistical Data Included)
- Article from:
- Polymer Engineering and Science
- Article date:
- June 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
Poly(propylene) (PP) and poly(ethylene vinylacetate) (EVA) are two important commercial polymers. The former is a semicrystalline thermoplastic, whereas the latter is considered an elastomer. In the last few years, it has been argued that PP and EVA are immiscible in each other (1-5); nevertheless, the existence of particular interfacial interactions between these two polymers has suggested the existence of compatible blends (1, 6). in a previous study on the morphology and mechanical properties of PP/EVA mixtures, two distinct regions and one transition zone were observed as a function of EVA concentration (1). At concentrations below 40% EVA, the ...