UV Curable Epoxy Acrylate-Clay Nanocomposites
UV curable epoxy acrylates were reinforced with two different organically modified montmorillonites (MMTs) and an unmodified MMT. Conversion and rate of polymerization was monitored by real time infrared spectroscopy (RTIR) and photo-DSC. Microstructures were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and optical clarity. Optical clarity of the films containing clay was quite good as only a slight decrease was observed. Physical properties of the reinforced films were examined by differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), hardness and tensile testing. Enhancements in glass transition temperature (Tg), thermal stability and mechanical properties were observed. The films reinforced with the unmodified MMT exhibit the most significant enhancements in properties.
European Polymer Journal
Uhl, Fawn M.; Webster, Dean C.; Davuluri, Siva Prashanth; and Wong, Shing Chung Josh, "UV Curable Epoxy Acrylate-Clay Nanocomposites" (2006). Mechanical Engineering Faculty Research. 399.