Navegando por Autor "Reinaldo, Juciklecia da Silva"

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Effect of processing conditions on the mechanical and morphological properties of elastomeric poly (Methyl Methacrylate)/polycarbonate blends
(Wiley, 2019-02) Ito, Edson Noriyuki; Macedo, Thatiana Cristina Pereira de; Reinaldo, Juciklecia da Silva; Pereira, Laurenice Martins; Rego, Jose Kaio Max Alves do; Damasceno, Igor Zumba; Ueki, Marcelo Massayoshi
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

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