CO2 gas barrier properties in polymer nanocomposite coatings containing Li-hectorite clays

This is a study of the addition of hydrophilic Li-hectorite nanoplatelets in waterborne acrylic resin emulsions and the resulting nanocomposite coatings. The mechanism of the dispersion of the nanoplatelets during film formation and curing from aqueous suspensions is described. The morphological fea...

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Veröffentlicht in:	Journal of applied polymer science 2014-09, Vol.131 (18), p.9558-n/a
Hauptverfasser:	Choudalakis, Georgios A., Kalo, Hussein, Breu, Josef, Gotsis, Alexandros D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acrylic resins Applied sciences clay Coatings Coatings. Paints, varnishes and inks Composites Dispersion Emulsions Exact sciences and technology Film formation and curing, properties, testing Forms of application and semi-finished materials Materials science membranes Nanocomposites Platelets (materials) Polymer industry, paints, wood Polymers Technology of polymers Transport properties
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Beschreibung
Zusammenfassung:	This is a study of the addition of hydrophilic Li-hectorite nanoplatelets in waterborne acrylic resin emulsions and the resulting nanocomposite coatings. The mechanism of the dispersion of the nanoplatelets during film formation and curing from aqueous suspensions is described. The morphological features of the coating and the state of delamination is examined via X-ray diffraction for three different clay treatment procedures. The influence of the shape of the nanosized objects and their dispersion level on the transport characteristics of the nanocomposite film are measured and their effect on the polymer free volume is discussed. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40805.
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.40805