Abstract
A series of waterborne poly(urethaneacrylate)/silica/titania (WPUA/SiO2/TiO2) composite materials were prepared by the sol-gel technique. The physical, mechanical and thermal properties of WPUA/SiO2/TiO2 dispersions and films were measured. The prepared composite materials were characterized by the means of FT-IR spectra, scanning electron microscope (SEM), transmission electron microscope (TEM), Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) measuring apparatus to get their structures, surface morphologies, thermal properties, etc. The results showed that SiO2-TiO2 composite particles of the films had uniform dispersion, forming an excellent interfacial bonding layer on their surface. The prepared composite materials showed good thermal stability and mechanical properties in comparison with pure WPUA. When SiO2:TiO2 was 8:2, hybrid material had the best mechanical properties. Keywords-waterborne poly(urethane-acrylate); silica; titania; mechanical property
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