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Effect of Processing Conditions on the Mechanical and Morphological Properties of Elastomeric Poly (Methyl Methacrylate)/Polycarbonate Blends
Author(s) -
de Macedo Thatiana Cristina Pereira,
da Silva Reinaldo Juciklécia,
Pereira Laurenice Martins,
do Rêgo José Kaio Max Alves,
Ueki Marcelo Massayoshi,
Damasceno Igor Zumba,
Ito Edson Noriyuki
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800049
Subject(s) - polycarbonate , materials science , plastics extrusion , elastomer , composite material , thermogravimetric analysis , rheometry , ultimate tensile strength , izod impact strength test , phase inversion , extrusion , polymer blend , melt flow index , methyl methacrylate , rheology , polymer , chemical engineering , polymerization , genetics , membrane , biology , engineering , copolymer
The aim of this study was to investigate the influence of the processing conditions in single and co‐rotational twin screw extruders on the mechanical and morphological properties of elastomeric poly (methyl methacrylate)/polycarbonate (PMMAe/PC) blends until the phase inversion. The characterizations were performed by measuring the melt flow index, capillary rheometry, thermogravimetric analysis, tensile tests, Izod impact, and atomic force microscopy (AFM). The thermal and rheological properties showed that PC had a higher sensitivity to processing conditions than PMMAe. The increase in PC concentration altered the mechanical properties of the PMMAe/PC blends with variations according to processing conditions. The morphology of PMMAe/PC blends up to phase inversion was visualized by AFM, and the results showed that the material processed with a single screw extruder obtained similar morphologies to that material processed in twin screw extruder.