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Study on the Charateristics of Nylon/Clay Nanocomposite Prepared by Monomer Casting Method  

Chung, Dae-won (Department of Polymer Engineering, College of Engineering, Suwon University)
Kim, Pil Young (Department of Polymer Engineering, College of Engineering, Suwon University)
Publication Information
Applied Chemistry for Engineering / v.16, no.4, 2005 , pp. 502-506 More about this Journal
Abstract
In the presence of various clays, nylon/clay nanocomposites were synthesized by anionic polymerization of ${\varepsilon}$-caprolactam (CL) via monomer casting method. The effect of each clay on polymerization reaction was investigated and the change in gallery structure of clays during polymerization was analyzed by X-ray diffraction. When the three kinds of organo-clays were used in the amount of 2 wt% of CL, polymerizations were not successful due to an increase in viscosity during polymerization. Significant changes were not observed in the mechanical and thermal properties of the composites containing organo-clays with 1 wt%. On the other hand, composites containing natural clay up to 5 wt% were successfully prepared, and the composite with 5 wt% showed a decrease in tensile strength and elongation, and remarkable improvement in thermal properties.
Keywords
nylon; clay; nanocomposite; ${\varepsilon}$-caprolactam; monomer casting;
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