Rheological and Morphological Properties of Composites Based on Polylactide and Talc

Rheological and Morphological Properties of Composites Based on Polylactide and Talc
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DOI：
10.17265/2161-6221/2013.11.002
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发表时间：
2013-11
期刊：
Journal of materials science & engineering
影响因子：
--
通讯作者：
Tálita;Cipriano;Ana;Lucía;Nazareth;Silva;Antônio;Henrique;Monteiro;Fonseca;Thomé;Anamaria;Furtado;Sousa;Gustavo;Christine;Rabello;do;Nascimento
Tálita;Cipriano;Ana;Lucía;Nazareth;Silva;Antônio;Henrique;Monteiro;Fonseca;Thomé;Anamaria;Furtado;Sousa;Gustavo;Christine;Rabello;do;Nascimento
中科院分区：
其他
文献类型：
--
作者：
Tálita;Cipriano;Ana;Lucía;Nazareth;Silva;Antônio;Henrique;Monteiro;Fonseca;Thomé;Anamaria;Furtado;Sousa;Gustavo;Christine;Rabello;do;Nascimento

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Polylactide (PLA) is an emerging material mainly because it can be synthesized from renewable resources and is thus environmentally and ecologically safe. In this study, composites of PLA and talc were prepared by melt-blending technique, using a twin screw extruder. The influence of talc content on the rheological properties of pure PLA and its composites were evaluated. Dynamic rheological tests show that the incorporation of talc particles into PLA decreased system viscosity due to the filler's lubricant effect. However, as talc content increased, system's viscosity tended also to increase and materials with higher elastic behavior were produced, further with a higher plastic behavior in relation to pure PLA. This behavior can be observed by SEM micrographs.