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公开(公告)号:US20010056149A1
公开(公告)日:2001-12-27
申请号:US09848965
申请日:2001-05-04
发明人: Clois E. Powell
IPC分类号: C08K003/34 , C08K005/17
摘要: In the method for preparing a nanocomposite by intercalating a smectite clay with a quaternary ammonium ion, and exfoliating the intercalated clay into a polymer matrix; an improvement is disclosed which augments exfoliation. The smectite clay is edge treated with negatively charged organic molecules prior to the exfoliation. For these purposes a high charge density anionic polymer such as a polyacrylate may be used.