1997
DOI: 10.1590/s0104-14281997000100011
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Comportamento mecânico e termo-mecânico de blendas poliméricas PBT/ABS

Abstract: Resumo: Blendas de poli(tereftalato de butileno) (PBT) e copolímero ABS foram estudadas usando-se três tipos diferentes de ABS. As blendas foram caracterizadas mecanicamente através de ensaios de tração e de impacto, e termo-mecanicamente através da determinação da temperatura de deflexão térmica (HDT). Uma influência mais pronunciada foi observada para a variação da composição química do ABS, em relação às diferentes composições de fase, onde blendas com ABS de maior proporção de acrilonitrila mostraram melho… Show more

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Cited by 19 publications
(14 citation statements)
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“…Therefore, as already observed, the extracted phase corroborates with the indicative of being an immiscible system, reinforcing the other results discussed above herein (Passador et al, 2008;Barra et al, 2003). Summing up, the continuous phase in a compound provides a greater contri-bution to the HDT of polymer blends, since this is the blend matrix itself, as also reported by Ferreira et al (1997) and Luna et al (2014). The effect of PEgA A on the phase structure of Bio-PE/PCL blends is shown in Figures 6 to 8.…”
Section: Compositionsupporting
confidence: 89%
“…Therefore, as already observed, the extracted phase corroborates with the indicative of being an immiscible system, reinforcing the other results discussed above herein (Passador et al, 2008;Barra et al, 2003). Summing up, the continuous phase in a compound provides a greater contri-bution to the HDT of polymer blends, since this is the blend matrix itself, as also reported by Ferreira et al (1997) and Luna et al (2014). The effect of PEgA A on the phase structure of Bio-PE/PCL blends is shown in Figures 6 to 8.…”
Section: Compositionsupporting
confidence: 89%
“…It can also be verified that the mean values obtained for the tensile strength with the addition of 6 and 10% showed no statistical differences considering a level of significance of 5%. The tensile strength expresses the maximum strength of the material when under tension [32] . The decrease in the value of this property, in PHB films, when the percentage of additive canola oil is increased, shows that the film has become mechanically less resistant when compared with the pure PHB film.…”
Section: Mechanical Propertiesmentioning
confidence: 99%
“…O ABS apresenta uma matriz termoplástica formada por acrilonitrila e estireno (SAN), de Tg relativamente alta (110-120°C), e uma fase borrachosa de polibutadieno (PB) dispersa nesta matriz vítrea, com Tg em aproximadamente -70°C e, ao mesmo tempo, uma terceira fase constituída de partículas de polibutadieno graftizadas na matriz de SAN (Ferreira et al, 1997;Araújo, 2001;Hirayama e Saron, 2018). O ABS, por apresentar três meros diferentes na cadeia principal, tende a ter dificuldade de empacotamento e, portanto, é amorfo (Júnior, 2002).…”
Section: Acrilonitrila-butadieno-estireno (Abs)unclassified