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Rubber toughened polyamide 6: The influences of compatibilizer on morphology and impact properties
Author(s) -
Wu ChungJen,
Kuo JenFeng,
Chen ChuhYung
Publication year - 1993
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.760332005
Subject(s) - materials science , compatibilization , composite material , maleic anhydride , polyamide , izod impact strength test , copolymer , natural rubber , polymer blend , morphology (biology) , polymer , ultimate tensile strength , genetics , biology
Abstract In this study, styrene‐(ethylene‐co‐butylene)‐styrene (SEBS) triblock copolymer (Kraton G‐1652) was modified with maleic anhydride (MA). The maleated SEBS was used as compatibilizer for the blends of Nylon 6 (PA6) and SEBS. The morphology and impact strength of the blends were measured as functions of concentration and MA graft ratio of maleated SEBS. The compatibility and fracture mechanism of the blends were evaluated from the SEM micrographs of the xylene‐etched surfaces and of fractured surfaces. Some of the blends exhibited an impact strength up to about 30 fold greater than neat PA6. The fracture involved both both cavitation and shear yielding. The mechanism of compatibilization of maleated SEBS in the ternary components blends was proposed.