NDLI: Estudo E Desenvolvimento De Nanocompósitos Pbt/argila Bentonita Tratados Por Radiação Ionizante

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Estudo E Desenvolvimento De Nanocompósitos Pbt/argila Bentonita Tratados Por Radiação Ionizante - Preparação E Caracterização

Content Provider	Semantic Scholar
Author	Sartori, Mariana Do Nascimento
Copyright Year	2014
Abstract	This work describes the preparation and characterization of composites based on poly (butylene terephthalate) PBT and brazilian modified clay prepared by the melt intercalation. PBT nanocomposites with 3 and 5 % by weight of organically modified clay, by the addition of a quaternary ammonium salt, were prepared by extrusion using a twin-screw extruder machine. After the extrusion process, the materials were injected to obtain specimens tests samples for the characterization tests. Part of the specimens samples were irradiated using an electron beam accelerator with 1.5 MeV at room temperature in the presence of air. Samples of pure PBT and irradiated and non-irradiated nanocomposites were characterized by mechanical tests of tensile, flexural and impact, heat distortion temperature (HDT), X ray diffraction (XRD), scanning electron microscopy (SEM), melt flow index (MFI) thermogravimetry (TG) and differential scanning calorimetry (DSC) and the correlation between the properties was discussed. The results showed that the addition of clay, in both percentages, promoted an increase greater than 50 % in tensile strength at break and a gain of around 35% in heat distortion temperature when compared to the pure polymer. The treatment with ionizing radiation of electron beam at the doses used in this study showed no significant changes in material properties.
File Format	PDF HTM / HTML
DOI	10.11606/D.85.2014.tde-28042015-145451
Alternate Webpage(s)	https://teses.usp.br/teses/disponiveis/85/85131/tde-28042015-145451/publico/2014SartoriEstudo.pdf
Alternate Webpage(s)	http://pelicano.ipen.br/PosG30/TextoCompleto/Mariana%20do%20Nascimento%20Sartori_M.pdf
Alternate Webpage(s)	https://doi.org/10.11606/D.85.2014.tde-28042015-145451
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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