EnglishComposites based on a commercial grade polystyrene (PS) resin containing non commercial perovskite particles were prepared by melt mixing and analyzed in terms of mechanical properties, dynamic-mechanical behavior and morphology. In particular, with the aim to study the influence of the filler size on the ultimate properties of PS based composites micro- and nano-sized perovskite La0.5Sr0.5MnO3 crystal particles, synthesized by using an efficient and rapid microwave-assisted hydrothermal route, were considered.Measurements of flexural parameters such as modulus and strength by static tests and storage modulus and damping factor by dynamic-mechanical evaluations showed better performance for nanofilled systems with respect to the ones containing micro particles, with the same filler content.Mechanical evidences were explained also by morphological observations from which a different level of filler dispersion seems to be obtained with the organization of perovskite nanosized crystals in superstructures able to support viscoelastic results. © 2012 Elsevier B.V.
Mechanical and dynamic-mechanical behavior and morphology of polystyrene/perovskite composites: Effects of filler size / Russo, Pietro; Acierno, Domenico; Rosa, Roberto; Leonelli, Cristina; Corradi, Anna; Rizzuti, Antonino. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - ELETTRONICO. - 243(2014), pp. 65-70.
| Data di pubblicazione: | 2014 |
| Titolo: | Mechanical and dynamic-mechanical behavior and morphology of polystyrene/perovskite composites: Effects of filler size |
| Autore/i: | Russo, Pietro; Acierno, Domenico; Rosa, Roberto; Leonelli, Cristina; Corradi, Anna; Rizzuti, Antonino |
| Autore/i UNIMORE: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.surfcoat.2012.03.030 |
| Rivista: | |
| Volume: | 243 |
| Pagina iniziale: | 65 |
| Pagina finale: | 70 |
| Codice identificativo ISI: | WOS:000335542100012 |
| Codice identificativo Scopus: | 2-s2.0-84897596153 |
| Citazione: | Mechanical and dynamic-mechanical behavior and morphology of polystyrene/perovskite composites: Effects of filler size / Russo, Pietro; Acierno, Domenico; Rosa, Roberto; Leonelli, Cristina; Corradi, Anna; Rizzuti, Antonino. - In: SURFACE & COATINGS TECHNOLOGY. - ISSN 0257-8972. - ELETTRONICO. - 243(2014), pp. 65-70. |
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http://hdl.handle.net/11380/1106455
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