Abstract:

A kind of fluorine-containing latex was prepared by means of semicontinuous emulsion polymerization and self-crosslinked at ambient temperature.Various factors affecting the performance of the latex film,such as the N-MA content(mass fraction,the same below),the film formation temperature,the content of the fluorine-containing monomer and the film thickness,were then studied. Moreover,the glass transition tempe rature and
the surface prope rty of the film were respectively determ ined by means of DSC analysis and Wilhelmy method· The weatherability of the fluorine-containing polymer was also investigated by the artificial accelerated ageing test.The resuIts show that the pe rform ance to price ratio of the obtained latex is better than those of the fluorine-containing latexes on the market.

Key words: self-crosslinking, fluorine-containing latex, film perform ance, preparation