SYNTHESIS AND CHARACTERIZATION OF MODIFIED EPOXY RESIN/ MODIFIED NANO-SiO_2 COMPOSITE

摘要

Modified epoxy resin/modified nano-SiO_2 composite was prepared employing urethane acrylate to modify epoxy resin E-44 and silane coupling agent for the modification of SiO_2 nanoparticles. The obtained materials were characterized by Fourier Transfonn infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical strength test and hardness test. The composite displayed a significantly increased mechanical properties and great application prospects in dental materials.