Layer by layer complex architectures based on ammonium polyphosphate, chitosan and silica on polyester-cotton blends : flammability and combustion behaviour
Articolo
Data di Pubblicazione:
2012
Citazione:
Layer by layer complex architectures based on ammonium polyphosphate, chitosan and silica on polyester-cotton blends : flammability and combustion behaviour / J. Alongi, F. Carosio, G. Malucelli. - In: CELLULOSE. - ISSN 0969-0239. - 19:3(2012 Jun), pp. 1041-1050. [10.1007/s10570-012-9682-8]
Abstract:
Hybrid organic-inorganic coatings containing ammonium polyphosphate (APP), chitosan and silica have been deposited on polyester-cotton blends (PET-CO), exploiting the layer by layer assembly. To this aim, two different complex architectures (namely, chitosan/APP bilayers plus silica/silica bilayers or silica/silica/chitosan/APP quadlayers) have been thoroughly investigated. The effect of their morphologies on the flame retardancy properties of the fabrics (flammability and combustion behaviour) has been assessed. More specifically, some of the above complex architectures exhibited significant enhancements concerning flammability (i. e. the suppression of afterglow, together with a considerable final residue increase) and combustion behaviour as evidenced by cone calorimeter tests. A close relationship between the overall flame retardancy properties of the blends and the level of dishomogeneity of the LbL architectures has been shown.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
cotton-polyester blends; flame retardancy; flammability; hybrid organic-inorganic coatings; layer by layer assembly; polymers and plastics
Elenco autori:
J. Alongi, F. Carosio, G. Malucelli
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