New HDPE/MCM41 nanocomposites with improved mechanical performance: synthesis and characterizatio

摘要

Ordered mesoporous silicas with a channel structure of well-defined geometries anddimensions at nanometer scale are excellent candidates to host intercalation reactions.In recent years, our research group has shown that mesoporous silicas of the M41S classcombined with metallocene complexes give rise to excellent supported catalysts for ethylenepolymerisation. Due to the support characteristics, the reaction is allowed to occur in thechannels and in this way hybrid organic-inorganic materials can be prepared within a largerange of nanofiller concentration. These HDPE/MCM-41 nanocomposites exhibit animproved mechanical performance and an easier degradability due to the additional role ofMCM-41 as a promoter for PE degradation.