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The mechanical behavior of blends of polyethylene, polypropylene, and an ethylene–propylene block copolymer at −20°C
Author(s) -
Flaris Vicki,
Stachurski Zbigniew H.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070451013
Subject(s) - copolymer , compatibilization , polypropylene , materials science , tacticity , polyethylene , ethylene , izod impact strength test , polymer blend , composite material , linear low density polyethylene , polymer chemistry , ethylene propylene rubber , polymer science , polymer , polymerization , chemistry , organic chemistry , catalysis , ultimate tensile strength
Compatibilization is necessary for most binary blends which display poor mechanical properties. The addition of an ethylene–propylene block copolymer to a blend of isotactic polypropylene and linear low‐density polyethylene alleviates the problem of poor adhesion at the interface. This was observed through the improvement in overall performance of the blend. It was noted that it is not solely the “interfacial agent” which is responsible for the improvement in impact strength of this blend. © 1992 John Wiley & Sons, Inc.