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Inflamabilidade de Nanocompósitos de Polipropileno/Argila Organofílica

Authors: Alves, Tatianny Soares; Barbosa, Renata; Carvalho, Laura Hecker de; Canedo, Eduardo Luis;

Inflamabilidade de Nanocompósitos de Polipropileno/Argila Organofílica

Abstract

A inflamabilidade de nanocompósitos com três tipos de polipropileno (homo e copolímeros) contendo 5% de argila montmorilonita organofílica (Cloisite 20A), 5 e 15% de polipropileno enxertado com anidrido maleico como agente compatibilizante e 0, 0,5 e 1% de cis-13-docosenamida (Erucamida) como agente co-intercalante foi estudada através do teste de queima horizontal UL94HB. Concentrados foram preparados em misturador interno e diluídos com a matriz de polipropileno em extrusora de dupla rosca corrotacional com diferentes configurações de rosca e velocidades rotação de 240 e 480 rpm. Os resultados indicaram aumento da velocidade de queima dos compósitos quando comparados às das matrizes e que a velocidade de queima não foi afetada pelas condições de processamento. Em todos os casos, foi observado durante o ensaio uma redução da emissão de fumaça, ausência de gotejamento de material e a formação de uma camada carbonácea, levando à preservação da estrutura interna da amostra.

Keywords

processamento, inflamabilidade, Chemical technology, nanocomposites, flammability, processing, TP1-1185, Polypropylene, Polipropileno, compósitos

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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!
5
Average
Average
Average
Green
gold