Abstract
The organo-bentonites were prepared with an intercalation agent such as 10-carboxydecyltris (4-phenoxyphenyl) phosphoniumbromide which was synthesized and applied to epoxy nanocomposites. This organo-bentonite was dispersed in a mixture of diglycidyl ether of bisphenol F and acid anhydride, and the ternary mixtures were able to cure without any curing accelerator such as triphenylphosphine. The obtained epoxy/organo-bentonite composites were studied by dynamic mechanical analysis, thermo-mechanical analysis, and flame retardant test. We found that these composites containing small amount of organo-bentonite have high thermal and flame-retarding properties, and low constant of thermal expansion in comparison with those of unmodified epoxy resin. TEM micrographs showed that the clay particles could be well dispersed and exfoliated in the epoxy matrix.
