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New HDPE/MCM41 nanocomposites with improved mechanical performance: synthesis and characterizatio
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Orientador(es)
Resumo(s)
Ordered mesoporous silicas with a channel structure of well-defined geometries and
dimensions at nanometer scale are excellent candidates to host intercalation reactions.
In recent years, our research group has shown that mesoporous silicas of the M41S class
combined with metallocene complexes give rise to excellent supported catalysts for ethylene
polymerisation. Due to the support characteristics, the reaction is allowed to occur in the
channels and in this way hybrid organic-inorganic materials can be prepared within a large
range of nanofiller concentration. These HDPE/MCM-41 nanocomposites exhibit an
improved mechanical performance and an easier degradability due to the additional role of
MCM-41 as a promoter for PE degradation.
Descrição
Palavras-chave
Ethylene polimerisation MCM-41 Zirconocene Supported catalyst
Contexto Educativo
Citação
Bento, A.; Lourenço, J. P.; Fernandes, A.; Pérez, E.; Cerrada, M. L.; Ribeiro, M. R. New HDPE/MCM41 nanocomposites with improved mechanical performance: synthesis and characterizatio. Trabalho apresentado em VI International Materials Symposium MATERIAIS 2011. In VI International Materials Symposium MATERIAIS 2011, Guimarães, 2011.