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Effect of the compatibilizer on the morphology and properties of dynamically cured PP/POE/epoxy blends
Author(s) -
Jiang Xue Liang,
Fan Yihong
Publication year - 2011
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.35307
Subject(s) - materials science , epoxy , compatibilization , polypropylene , maleic anhydride , composite material , vulcanization , ultimate tensile strength , flexural modulus , izod impact strength test , polymer blend , copolymer , phase (matter) , dynamic mechanical analysis , natural rubber , polymer , chemistry , organic chemistry
Dynamic vulcanization was successfully applied to epoxy resin reinforced polypropylene (PP)/ethylene‐octene copolymer (POE) blends, and the effects of different compatibilizers on the morphology and properties of dynamically cured PP/POE/epoxy blends were studied. The results show that dynamically cured PP/POE/epoxy blends compatibilized with maleic anhydride‐grafted polypropylene (MAH‐ g ‐PP) have a three‐phase structure consisting of POE and epoxy particles dispersed in the PP continuous phase, and these blends had improved tensile strength and flexural modulus. While using maleic anhydride‐grafted POE (MAH‐ g ‐POE) as a compatibilizer, the structure of the core‐shell complex phase and the PP continuous phase showed that epoxy particles could be embedded in MAH‐ g ‐POE in the blends, and gave rise to an increase in impact strength, while retaining a certain strength and modulus. DSC analysis showed that the epoxy particles in the blends compatibilized with MAH‐ g ‐PP were more efficient nucleating agents for PP than they were in the blends compatibilized with MAH‐ g ‐POE. WAXD analysis shows that compatibilization do not disturb the crystalline structure of PP in the blends. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012