NANOCOMPOSITES FORMED BY ONIUM ION-INTERCALATED CLAY AND RIGID ANHYDRIDE-CURED EPOXY RESINS

摘要

Intercalates formed by contacting a layered material, e.g., a phyllosilicate, with an intercalant onium ion spacing agent and an anhydridecurable epoxy resin. The intercalant onium ion spacing agent converts the interlayer region of the layered materials from hydrophilic to hydrophobic, therefore, the anhydride-curable epoxy resin can be easily intercalated into the interlayer spacing. The co-presence of the co-intercalant anhydride-curable epoxy resin in the interlayer space provides surprising increase in glass transition temperature for anhydride-curable epoxy resin matrix polymer/cointercalant compounded nanocomposites. The nanocomposites (e.g., epoxy-clay) prepared from the intercalants demonstrate enhanced mechanical, thermal and chemical resistance compared with pristine polymer matrices.