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Preparation of Kenyaite/epoxy Nanocomposite from Pulverization of Kenyaite  

Joo, Eul-Rea (New Chemistry Research Division, Korea Research Institute of Chemical Technology)
Jeong, Soon-Yong (New Chemistry Research Division, Korea Research Institute of Chemical Technology)
Oh, Seong-Geun (Department of Chemical Engineering, Hanyang University)
Kwon, Oh-Yun (Department of Chemical System Engineering, Chonnam National University)
Publication Information
Applied Chemistry for Engineering / v.18, no.1, 2007 , pp. 48-53 More about this Journal
Abstract
Pulverization characteristics of H-kenyaite in vibration mill and exfoliation property in epoxy of pulverized H-kenyaite was investigated by using XRD, SEM, TEM. and particle size analyzer. Pulverization was conducted for 0.5~5 h. The particle morphology of sample pulverized for 1 h preserved plate-shape. However, this plate-shape disappeared in the sample pulverized for 3 h. The XRD pattern of sample pulverized for 1 h showed the characteristic peak of H-kenyaite. However, the peak disappeared in samples pulverized above 3 h, indicating severe destruction of H-kenyaite structure. TEM analysis for the kenyaite/epoxy nanocomposites exhibited only gallery expansion of 3~5 nm in non-pulverized sample, but dramatical large expansion of 5~10 nm in the samples pulverized during 1 h. This results confirm that the pulverization of wide plates composed of H-kenyaite particle have largely affect on the formation of an exfoliated kenyaite-polymer nanocomposite.
Keywords
vibration mill; layered silicate; kenyaite; pulverization; epoxy; nanocomposite;
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