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Manufacturing Polymer/clay Nanocomposites Using a Supercritical Fluid Process  

Jung, Hyun-Taek (Hybrid materials research center, Korea Institute of Science and Technology)
Yoon, Ho-Gyu (Department of materials Science and Engineering, Korea University)
Lim, Soon-Ho (Hybrid materials research center, Korea Institute of Science and Technology)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.9, no.4, 2008 , pp. 63-65 More about this Journal
Abstract
The increased interest in reducing the environmental effects caused by releasing organic compounds and aqueous waste has motivated the development of polymeric materials in supercritical fluids. Recently, supercritical fluids have been used in material synthesis and processing because of their special properties, such as high diffusivity, low viscosity, and low surface tension. Supercritical carbon dioxide is the most attractive because it is non-toxic, non-flammable, and has moderate critical temperature and critical pressure values. Supercritical carbon dioxide can also swell most polymers. In this study, we prepared polymer/clay nanocomposites using supercritical fluids. Cloisites 10A, 15A, 25A, and 30B used in this study are montmorillonites modified with a quaternary ammonium salt. The nanocomposites of polymer/clay were characterized by X-ray diffraction, thermogravimetric analysis, and differential scanning calorimetry.
Keywords
Supercritical fluid; Carbon dioxide; Nanocomposites; Cloisite Na+-MMT; 10A; 15A; 25A; 30B; Poly (ethylene oxide);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
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