Preparation of transparent silica–PMMA nanocomposite hard coatings

Abstract The preparation of silica–PMMA nanocomposite was reported. The surface modified-silica nanoparticles can be well dispersed in organic solvent and incorporated into the polymer resin. The nanocomposite showed improved mechanical property and can be applied on different acrylic functional materials. DSC analysis showed that the glass transition temperature of the hybrids was increased with increasing content of silica. Good transparency (>90%) and hardness grade (>5H) is observed in nanocomposite with 10 wt% silica content.