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Effect of nanoclay type on dyeability of polyethylene terephthalate/clay nanocomposites
Author(s) -
Parvinzadeh Gashti Mazeyar,
Moradian Siamak
Publication year - 2012
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.35493
Subject(s) - materials science , nanocomposite , polyethylene terephthalate , composite material , differential scanning calorimetry , compounding , glass transition , thermogravimetric analysis , amorphous solid , polyethylene , polymer , chemical engineering , chemistry , physics , organic chemistry , thermodynamics , engineering
Polyethylene terephthalate (PET)‐based nanocomposites containing three differently modified clays were prepared by melt compounding. The influence of type of clay on disperseability, thermal, and dyeing properties of the resultant nanocomposite was investigated by various analytic techniques, namely, X‐ray diffraction, optical microscopy (OPM), differential scanning calorimetry, thermal gravimetric analysis, dynamical mechanical thermal analysis, contact angle measurement (CAM), reflectance spectroscopy, and light fastness. OPM images illustrated formation of large‐sized spherulites in pure PET, while only small‐sized crystals appeared in PET/clay nanocomposites. Decreased glass transition temperatures for all PET/clay nanocomposites indicate that the amorphous regions of such composites become mobile at lower temperatures than those in pure PET. CAMs on the resultant PET composites demonstrated that the wettability of such composites depends on hydrophilicity of the nanoclay particles. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012