Abstract:
In this paper, a series of fluorinated urethane acrylates with different structures and contents of fluorinated monomers were prepared by solution polymerization and characterized by FTIR and 1HNMR. X-ray photoelectron spectroscopy (XPS) was used to study the surface enrichment behavior of fluorinated group. The influence of fluorinated monomer structure and content on the water contact angle of cured films was also studied. The G06 resin was blended with SiO
2 and ZrO
2 inorganic sol to prepare photo-curing fluorinated hybrid coatings, and the friction coefficient and wear resistance of the cured coatings were studied. The results show that the addition of fluorinated monomer significantly reduces the coefficient of friction of the cured film, and thus significantly improves the wear resistance of polymethyl methacrylate by incorporating with the inorganic sol. The wear loss of polymethyl methacrylate reduced from 2.9 mg per to 0.7 mg per 50 rounds coated with fluorine-free organic-inorganic hybrid coating. It further reduced to 0.5 mg per 50 rounds coated with fluorinated hybrid coating.