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Polyurethane Nanocomposites with Organoclay  

안영욱 (금오공과대학교 고분자공학과)
장진해 (금오공과대학교 고분자공학과)
박연흠 (성균관대학교 응용화학부)
박종민 (성균관대학교 응용화학부, (주)코오롱 중앙기술원)
Publication Information
Polymer(Korea) / v.26, no.3, 2002 , pp. 381-388 More about this Journal
Abstract
The properties of polyurethane (PU) nanocomposites with organoclay have been compared in terms of their thermo-mechanical properties, morphology, and gas permeability. Hexadecylamine-montmorillonite ($C_{16}$-MMT) was used as an organoclay to make PU hybrid films. The properties were investigated as a function of organoclay content (1-4 wt%) in the PU matrix. Transmission electron microscopy (TEM) photographs showed that most clay layers were dispersed homogeneously into the matrix polymer in nano-scale, although some particles of clay were agglomerated. We also found that the addition of only a small amount of organoclay was enough to improve the thermal stabilities and mechanical properties of PU hybrid films while gas permeability was reduced. Even at low organoclay content (<5 wt%), the PU nanocomposite showed much better thermo-mechanical properties, and lower gas permeability than pure PU.
Keywords
polyurethane nanocomposites; organoclay; thermo-mechanical properties; morphology; gas permeability;
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Times Cited By Web Of Science : 10  (Related Records In Web of Science)
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