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CO 2 gas barrier properties in polymer nanocomposite coatings containing Li‐hectorite clays
Author(s) -
Choudalakis Georgios A.,
Kalo Hussein,
Breu Josef,
Gotsis Alexandros D.
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40805
Subject(s) - hectorite , materials science , nanocomposite , curing (chemistry) , polymer , composite material , dispersion (optics) , coating , montmorillonite , chemical engineering , engineering , physics , optics
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.