Abstract
In this article, fluorine-containing methacrylic ester copolymers were successfully synthesized by a two-stage suspension polymerization and applied in manufacturing hydrophobic methyl methacrylate (MMA) floor coatings. The copolymer composition was characterized by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance (1H-NMR) spectroscopy. In addition, the mass fractions of 2-(perfluoroalkyl)ethyl methacrylate (FMA) incorporated in the copolymers were calculated according to the relative intensity of characteristic peaks in the 1H-NMR spectrum. The prepared hydrophobic MMA floor coatings were analyzed for their coating properties such as viscosity, pot life, dry time, hardness, abrasion resistance, impact resistance, tensile strength, chemical resistance, and contact angle. Accordingly, the influence of the copolymer molecular weight and that of the incorporated amount of FMA in the copolymers were studied. Results show that coatings prepared using the copolymers with a molecular weight of 52,000 exhibit excellent comprehensive properties. Moreover, the contact angle of the coating films prepared increases as the incorporated amount of FMA increases, reaching the maximum value of 103° for 13%.
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