2010•Gōsei jushiRequires access

Experimental on Microcellular Foaming of PP/HDPE/EPDM Blends

Zhou Nan-qiao

Abstract

Polypropylene(PP) has poor foamiability because of its low melt strength and high crystallinity.To obtain the fine microcellular foams,PP and polyethylene(PE) were blended and a small quantity of EPDM was added into PP/PE blend.The effects of EPDM content on the melt strength and microcellular structure of PP/PE/EPDM blend were investigated and their mechanism was analyzed in order to find a blend with high melt strength and good foamiability.

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Key concepts: Materials science, Composite material, Polypropylene, High-density polyethylene, Crystallinity, Polyethylene, Izod impact strength test, EPDM rubber