The Curing Reactions of the Epoxy/Intercalated Clay Resin Systems
Advancing the chemical engineering fundamentals
Polymer Science & Engineering (T2-12P)
Keywords: epoxy, clay, intercalation, curing, kinetics
The curing reactions of different intercalated clay/epoxy resin systems are studied by using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), wide angle X-ray diffraction, and Fourier transform infrared spectroscopy (FTIR). The results of X-ray diffraction indicate that the intercalation distance of the clay increases in the order of unmodified clay < phosphorus epoxy intercalated clay < organic amine intercalated clay < siloxane intercalated clay. The results of TGA confirm that the amount of various compounds intercalated increases in the order of organic amine < phosphorus epoxy < siloxane. Due to the difference in reactive functional groups of intercalated compounds, it is shown from DSC and FTIR analysis that the curing kinetics, reaction extents, and exotherms of the epoxy resin are significantly affected by the presence of different intercalated clays. The curing reactions of the epoxy systems also change with respect to the clay content and the curing temperature used.
Presented Tuesday 18, 13:30 to 15:00, in session Polymer Science & Engineering (T2-12P).
