Aqueous compositions comprising surfactant represented by a formula selected from the group consisting of:
[Rf—(O)t—CHF—(CF2)n—COO−]iXi+;
[Rf—(O)t—CQH—CF2—O]m—R—COO−}iXi+;
[Rf—(O)t—CQH—CF2—O]m—R—SO3−}iXi+; and
[CF3CFH—O—(CF2)p—COO−]iXi+;
wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with at least one oxygen atom; Q is selected from the group consisting of F and CF3; R is selected from the group consisting of alkylene and arylene; Xi+ represents a cation having a valence i, wherein i is 1, 2 or 3; t is 0 or 1; m is 1, 2, or 3; n is 0 or 1; and p is an integer from 1 to 6. The aqueous composition comprises a non-fluorinated polymer and is essentially free of fluoropolymers. Methods of coating a surface and an article having a surface in contact with the composition are provided.
含有表面活性剂的
水性组合物,所述表面活性剂的
化学式选自以下组合:[Rf—(O)t—CHF—(
CF2)n—COO−]iXi+;[Rf—(O)t—
CQH—
CF2—O]m—R—COO−}iXi+;[Rf—(O)t—
CQH—
CF2—O]m—R—SO3−}iXi+;以及[ CFH—O—(
CF2)p—COO−]iXi+;其中,Rf代表部分或完
全氟化的脂肪族基团,可选地中断至少一个氧原子;Q选自F和
CF3;R选自烷基和芳基;Xi+表示具有价i的阳离子,其中i为1、2或3;t为0或1;m为1、2或3;n为0或1;p为1至6的整数。该
水性组合物包括非
氟聚合物,基本上不含
氟聚合物。提供了涂覆表面的方法和与该组合物接触的表面的物品。