The Layer by Layer (LbL) technique has been exploited for depositing a completely inorganic silica coating on 0.2- and 1- mm thick polycarbonate (PC) films. The modification of the surface of the polymer substrate has been assessed by contact angle measurements, SEM and FT-IR analyses. The flammability and combustion behaviour of the LbL-treated films have also been investigated: surprisingly, the coatings deposited on 0.2 mm PC films have suppressed the incandescent melt dripping during the flammability tests. Furthermore, cone calorimetry tests have shown a great enhancement of the flame retardancy properties of PC, after the LbL treatment. On the other hand, a significant decrease of the performances of 1- mm coated substrates has been observed and ascribed to the too low surface-to-bulk ratio and to the poor coating stability during the combustion, as revealed by SEM analysis.
Layer by Layer nanoarchitectures for the surface protection of polycarbonate / Federico Carosio; Alessandro Di Blasio; Jenny Alongi; Giulio Malucelli. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 49(2013), pp. 397-404. [10.1016/j.eurpolymj.2012.10.032]
|Titolo:||Layer by Layer nanoarchitectures for the surface protection of polycarbonate|
|Data di pubblicazione:||2013|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.eurpolymj.2012.10.032|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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