Research For The Properties Of Epoxy/clay Nanocomposites

In this paper, epoxy/clay nanocomposites were prepared by simple melt compounding, their structures were demonstrated with X-ray diffraction and DTA. It was proved that the molecular chain of epoxy would be intercalated in layered silicate of organobentonite, disordered intercalation nanocomposites were obtained. Meanwhile,th factors that affect the intercalation behavior of polymer were investigated.The experimental result showed that the compatibility between epoxy resin and organic soil is fine, It is found that the affinity between the organoclay and epoxy resin is very good and the organoclay is easy to be intercalated by epoxy resin With or without solvent . By direct mixing, exfoliated epoxy/clay nanocomposites are achieved . Mechanical properties test results show that the exfoliated nanocomposite performs better than the intercalated nanocomposite of the same compound . The dynamic mechanical properties of epoxy/clay nanocomposites are investigated at average strain rates of 102~104/S by the apparatus of SHPB in this paper. Dynamic stress intensity factor Kid is obtained by the dynamic responses of three-point bending specimen under the impact loads...