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Properties/Structure Relationships in Innovative PCL‐SiO 2 Nanocomposites
Author(s) -
Avella Maurizio,
Bondioli Federica,
Cannello Valeria,
Cosco Simona,
Errico Maria Emanuela,
Ferrari Anna Maria,
Focher Bonaventura,
Malinconico Mario
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200451421
Subject(s) - materials science , compatibilization , nanocomposite , interphase , composite material , nanoparticle , modulus , dynamic mechanical analysis , matrix (chemical analysis) , chemical engineering , polymer , copolymer , polymer blend , nanotechnology , biology , engineering , genetics
Poly(caprolactone) (PCL) based nanocomposites filled with silica (SiO 2 ) nanoparticles were prepared and the relationships between their structure and properties were investigated. Silica nanoparticles were synthesized by Stöber method. Surface of silica nanoparticles were successively functionalized in order to promote matrix/filler compatibilization and to improve interfacial adhesion. Morphological analysis performed on the fractured surface of samples revealed that the compatibilization process permitted to obtain an homogeneous and discrete distribution of the nanoparticles into polymeric matrix. Mechanical test showed that in the presence of a strong interphase, the elastic modulus increases of about 25% than the neat polymeric matrix value. Preliminary modelling analysis was also performed in order to assess the correlation existing between a computational model and experimental data.