Properties/Structure Relationships in Innovative PCL-SiO2 Nanocomposites

Poly(caprolactone) (PCL) based nanocomposites filled with silica (SiO2) 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...

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Bibliographic Details
Published in:Macromolecular symposia. 2004-11, Vol.218 (1), p.201-210
Main Authors: Avella, Maurizio, Bondioli, Federica, Cannello, Valeria, Cosco, Simona, Errico, Maria Emanuela, Ferrari, Anna Maria, Focher, Bonaventura, Malinconico, Mario
Format: Article
Language:English
Subjects:
Adhesion
Compatibility
compatibilization
Interphase
mechanical properties
modeling
Modulus of elasticity
Nanocomposites
Nanoparticles
polymer
Silicon dioxide
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Summary:Poly(caprolactone) (PCL) based nanocomposites filled with silica (SiO2) 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.
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.200451421