Synthesis and characterization of scratch-resistant hybrid coatings based on non-hydrolytic sol-gel ZrO2 nanoparticles

Tana, Francesca; Messori, Massimo; Contini, Davide; Cigada, Alberto; Valente, Teodoro; Variola, Fabio; De Nardo, Luigi; Bondioli, Federica

doi:10.1016/j.porgcoat.2016.11.022

Hybrid transparent coatings based on zirconia nanoparticle fillers and epoxy resin were designed to increase scratch resistance of commodity polymers without impairing their optical properties. Suspensions of nano-crystalline ZrO2 in benzyl alcohol were synthesized via a versatile non-hydrolytic sol-gel process using ZrCl4 as precursor. The obtained ZrO2 nanoparticles showed a crystalline structure attributable to a tetragonal phase and an average particle size of 2 nm. ZrO2 nanoparticles, suspended in tert-butanol, were mixed with a commercial epoxy resin (5 and 10%wt.). The organic solvent was then evaporated and hybrid composites were deposited on polycarbonate and poly(methyl methacrylate). The obtained coatings showed a homogeneous adhesion and a negligible effect on the transparency of these polymers. An increased scratch-resistance was obtained by increasing the ZrO2 nanoparticles content.

Synthesis and characterization of scratch-resistant hybrid coatings based on non-hydrolytic sol-gel ZrO2 nanoparticles / Tana, Francesca; Messori, Massimo; Contini, Davide; Cigada, Alberto; Valente, Teodoro; Variola, Fabio; De Nardo, Luigi; Bondioli, Federica. - In: PROGRESS IN ORGANIC COATINGS. - ISSN 0300-9440. - 103(2017), pp. 60-68. [10.1016/j.porgcoat.2016.11.022]

Data di pubblicazione:	2017
Titolo:	Synthesis and characterization of scratch-resistant hybrid coatings based on non-hydrolytic sol-gel ZrO2 nanoparticles
Autore/i:	Tana, Francesca; Messori, Massimo; Contini, Davide; Cigada, Alberto; Valente, Teodoro; Variola, Fabio; De Nardo, Luigi; Bondioli, Federica
Autore/i UNIMORE:	Tana, Francesca MESSORI, Massimo Contini, Davide Cigada, Alberto Valente, Teodoro Variola, Fabio De Nardo, Luigi Bondioli, Federica mostra contributor esterni nascondi contributor esterni
Digital Object Identifier (DOI):	http://dx.doi.org/10.1016/j.porgcoat.2016.11.022
Rivista:	PROGRESS IN ORGANIC COATINGS
Volume:	103
Pagina iniziale:	60
Pagina finale:	68
Codice identificativo ISI:	WOS:000393000200007
Codice identificativo Scopus:	2-s2.0-85008682929
Citazione:	Synthesis and characterization of scratch-resistant hybrid coatings based on non-hydrolytic sol-gel ZrO2 nanoparticles / Tana, Francesca; Messori, Massimo; Contini, Davide; Cigada, Alberto; Valente, Teodoro; Variola, Fabio; De Nardo, Luigi; Bondioli, Federica. - In: PROGRESS IN ORGANIC COATINGS. - ISSN 0300-9440. - 103(2017), pp. 60-68. [10.1016/j.porgcoat.2016.11.022]
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