CINECA IRIS Institutional Research Information System
IRIS è l'Anagrafe della ricerca dell'Università degli Studi di Trento, e ha lo scopo di raccogliere, documentare, conservare e diffondere, anche ad accesso aperto, la produzione scientifica degli autori afferenti all'Università degli Studi di Trento.
EnglishThin transparent films of polyurethane-clay nanocomposites were prepared by dispersing different amounts of commercial organo-modified clay in a mixture of cycloaliphatic amines used as chain extender of a blocking prepolymer, in order to investigate the role of the filler content on the thermo-mechanical behavior of the resulting composites. X-ray diffraction measurements evidenced the formation of an intercalated structure, regardless to the clay loading. Furthermore, the optical clarity of the samples was not substantially compromised by the nanofiller addition even at elevated clay amounts. Interestingly, the relatively strong polymer-filler interaction led to a substantial reduction of the matrix crosslinking degree for high clay loadings. Consequently, the relative thermal lifetime was positively affected by the presence of clay up to a filler content of 7 wt%, while uniaxial tensile tests under quasi-static and impact conditions evidenced an increase of the elastic modulus proportional to the clay concentration, without impairing the original tensile properties at break.
Scheda prodotto non validato
I dati visualizzati non sono stati ancora sottoposti a validazione formale da parte dello Staff di IRIS, ma sono stati ugualmente trasmessi al Sito Docente Cineca (Loginmiur).
| Titolo: | Effect of the polymer-filler interaction on the thermo-mechanical response of polyurethane-clay nanocomposites from blocked prepolymer |
| Autori: | Dorigato, Andrea; Pegoretti, Alessandro; Penati, Amabile |
| Autori Unitn: | |
| Titolo del periodico: | JOURNAL OF REINFORCED PLASTICS AND COMPOSITES |
| Anno di pubblicazione: | 2011 |
| Numero e parte del fascicolo: | 4 |
| Codice identificativo ISI: | WOS:000288434500005 |
| Digital Object Identifier (DOI): | 10.1177/0731684410396599 |
| Handle: | http://hdl.handle.net/11572/85274 |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
File in questo prodotto:
Copyright © 2020