Characterisation of urushiol formaldehyde polymer/multihydroxyl polyacrylate/SiO2 nanocomposites prepared by the sol–gel method

Novel anti-ultraviolet UFP/MPA/SiO2 nanocomposite coatings were prepared from urushiol formaldehyde polymer (UFP) and multihydroxyl polyacrylate resin (MPA) via the sol–gel process. FT-IR spectroscopy was employed to reveal the nanocomposite structure between UFP/MPA and nano-SiO2. TEM was used to observe the size scale and the distribution of nanoparticles throughout the polymer matrix. Simultaneously, the dynamic mechanical properties were characterised through dynamic mechanical thermal analysis (DMTA). The influence of the SiO2 content on the physical mechanical and anticorrosive properties of UFP/MPA/SiO2 nanocomposites was investigated. Moreover, the 1000 h anti-ultraviolet tests showed that the ultraviolet resistance of UFP/MPA/SiO2 coatings improved. The best anti-ultraviolet and anticorrosive properties were achieved when the SiO2 content was 5 wt.%.