| 摘要 |
Aqueous fluoropolymer dispersions containing
i) at least one tetrafluoroethene homopolymer or tetrafluoroethene copolymer;
ii) at least one non-aromatic polyhydroxy surfactant containing an acyclic polyhydroxy unit linked by a linking group to a linear or branched long chain unit comprising an aliphatic residue having from about 3 to 36 carbon atoms and wherein the linking group is selected from amino groups, amido groups, sulfoamido groups, phosphoamido groups, phosphate ester groups, phosphonate ester groups, sulfate ester groups, sulfonate ester groups and carboxylate ester groups;
wherein the dispersion contains from 0 to 100 ppm based on the total weight of the dispersion of fluorinated surfactants. Also provided are methods of coating using the dispersions and substrate coated with the dispersions. |
