Abstract
A series of fluoroacrylate (FPA) and nano-silica/fluoroacrylate were prepared. The properties including physical properties, mechanical behavior and contact angle of FPA were investigated. According to the results, the optimal fluoride content can be screened. The nano-silica/fluoroacrylate (SiO2/FPA) materials were characterized by fourier transform infrared (FT-IR), thermogravimetric analysis (TGA) and transmission electron microscope (TEM). The surface morphology and mineralogical analysis of the stone samples were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD), respectively. The prepared coating was selected to protect on the stone surface. Aimed at evaluating the coating performance, the protective performances were also evaluated by artificial aging test. The results indicated that when the content of hexafluoro-butyl methacrylate (HFMA) was 8.0 wt% and the content of SiO2 was 4.0 wt%, the prepared material has good compatibility and appearance with stone relics. The protective coating material for protection of chosen Jiaoshan Steles Grove (China) is noticeable and it can be widely applied to the protection of stone relics.
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