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Morphology of compatibilized ternary blends of polypropylene, nylon 66, and polystyrene
Author(s) -
DeBolt Michael A.,
Robertson Richard E.
Publication year - 2006
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20296
Subject(s) - materials science , compatibilization , polystyrene , polypropylene , polymer blend , nylon 6 , composite material , copolymer , ternary operation , styrene , polymer chemistry , morphology (biology) , polymer , computer science , programming language , biology , genetics
The morphologies of a ternary blend of nylon 66 and polystyrene in a polypropylene matrix with and without compatibilization by an ionomer resin (for nylon 66) and a styrene‐ block ‐ethylene‐ co ‐butylene‐ block ‐styrene (SEBS) copolymer (for polystyrene) were investigated by transmission electron microscopy (TEM) of stained thin sections. The morphology found with the two compatibilizers (a five‐component mixture) was essentially that of the binary blends of nylon 66/polypropylene and of polystyrene/polypropylene with their respective compatibilizers, indicating no gross interference between the two compatibilization systems. However, several interactions were discerned: 1) an association of the polystyrene with the nylon in the compatibilized blends (partial wetting), 2) a presence of larger particles when both compatibilizers were added to the binary blends, and 3) a possible synergism, in which less of each compatibilizer was needed when they were both present. Polym. Eng. Sci. 46:385–398, 2006. © 2006 Society of Plastics Engineers.