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

摘要

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