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Propriedades Mecânicas e Reológicas de Nanocompósitos de Poliamida 6 com Argila Organofílica Nacional

Authors: Paz, Renê Anisio da; Leite, Amanda Melissa Damião; Araújo, Edcleide Maria; Melo, Tomás Jeferson Alves de; Pessan, Luiz Antonio; Passador, Fábio Roberto;

Propriedades Mecânicas e Reológicas de Nanocompósitos de Poliamida 6 com Argila Organofílica Nacional

Abstract

Nanocompósitos de poliamida 6 com argila organofílica foram preparados pelo método de intercalação no estado fundido. Foram estudadas as propriedades reológicas e mecânicas de nanocompósitos com argila nacional. A argila utilizada foi tratada com o sal quaternário de amônio (Cetremide) e foi caracterizada por Espectroscopia no Infravermelho (FTIR) e difração de raios X (DRX). Os resultados evidenciaram a incorporação do sal na argila e sua organofilização. Para a obtenção dos nanocompósitos, foram preparados concentrados de PA6/argila (1:1) em (m/m) e estes foram adicionados na poliamida 6, em quantidade de 3% de argila no composto final, utilizando uma extrusora de rosca dupla corrotacional. Posteriormente, as amostras foram moldadas por injeção e caracterizadas por: reometria capilar, DRX, MET e ensaios mecânicos (tração e impacto). Os resultados de reometria capilar mostraram que a presença da argila organofílica na PA6 aumentou a viscosidade dos sistemas. Por DRX e MET, foi verificado que todos os sistemas apresentaram predominância de estrutura esfoliada. As propriedades mecânicas sob tração foram melhores do que as da poliamida 6.

Keywords

poliamida 6, polyamide 6, Chemical technology, argila organofílica, organoclay, TP1-1185, Nanocompósitos, Nanocomposites

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
Green
gold