This invention provides water-based compositions, particularly coating, ink, adhesive, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of a mixture of a non-fluorinated anionic compound and a non-fluorinated weak base cationic compound, the mixture demonstrating a dynamic surface tension (DST) which is less than the DST of the individual anionic and cationic compounds and less than 45 dynes/cm, at a concentration of ≦5 wt % in water at 23° C. and 20 bubbles/second or less than 40 dynes/cm at a concentration of ≦0.03M in water at 23° C. and 0.1 bubbles/second according to the maximum-bubble pressure method.
本发明提供的
水基组合物,特别是涂料、油墨、粘合剂、润发液和农用组合物,通过加入表面张力降低量的无
氟阴离子化合物和无
氟弱碱阳离子化合物的混合物来降低平衡表面张力和动态表面张力,该混合物的动态表面张力(DST)小于单个阴离子化合物和阳离子化合物的DST,且小于45达因/厘米,浓度为≦5 wt % 的
水中,温度为 23° C.根据最大气泡压力法,在 23° C 的
水中浓度为 0.03M,气泡数为 0.1 个/秒时,DST 小于 45 达因/厘米,或小于 40 达因/厘米。