We compare results for polymer nanocomposites of poly(methyl methacrylate) (PMMA) and carbon nanofibers (CNFs) prepared by three different processing techniques: melt-compounding, solvent casting and in situ polymerization. Moreover, CNFs were used as received and functionalized with oxygen and nitrogen groups. Mechanical properties and rheological behavior of the composites revealed a strong filler–polymer interface interaction in the in situ polymerized composites, even through covalent binding, while was noticed to be weaker in melt-compounding and solvent casting. In addition, in these two further cases, the addition of CNFs, pristine or functionalized, improved toughness of the PMMA.

Processing and functionalization effect in CNF/PMMA nanocomposites

BITTOLO BON, SILVIA;VALENTINI, LUCA;
2012-01-01

Abstract

We compare results for polymer nanocomposites of poly(methyl methacrylate) (PMMA) and carbon nanofibers (CNFs) prepared by three different processing techniques: melt-compounding, solvent casting and in situ polymerization. Moreover, CNFs were used as received and functionalized with oxygen and nitrogen groups. Mechanical properties and rheological behavior of the composites revealed a strong filler–polymer interface interaction in the in situ polymerized composites, even through covalent binding, while was noticed to be weaker in melt-compounding and solvent casting. In addition, in these two further cases, the addition of CNFs, pristine or functionalized, improved toughness of the PMMA.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/523097
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