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Structure and properties of polyolefin blends
Author(s) -
Ślusarski Ludomir,
Bieliński Dariusz,
Włochowicz Andrzej,
Ślusarczyk Czesław
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210360305
Subject(s) - materials science , crystallinity , polyolefin , tacticity , epdm rubber , elastomer , polypropylene , polyethylene , polymer blend , ethylene propylene rubber , natural rubber , composite material , monomer , low density polyethylene , thermoplastic elastomer , polymer chemistry , polymer , copolymer , polymerization , layer (electronics)
Blends of ethylene–propylene–diene rubber (EPDM) and low density polyethylene (PE id ) or isotactic polypropylene (iPP) crosslinked by dicumyl peroxide (DCP) have been prepared. Their morphology, reactivity of the components and crystallinity have been studied. The blends are microheterogeneous. Both plastomers, but particularly iPP, decrease the crosslinking efficiency of EPDM by DCP. It was found that they also influence the mechanical properties of the blends. The effect of iPP is far more pronounced than that of PE Id , because of an increase in crystalline phase content. iPP particles play a role as nuclei for propylene monomer units in EPDM, whereas PE Id particles are solvated by the elastomer matrix.