A dispersing agent which is
(a) a condensation product of a substituted phenol sulfonic acid which is an arylphenol sulfonic acid or an aralkylphenol sulfonic acid with from about 0.5 to about 4 moles of formaldehyde per mole of substituted phenol sulfonic acid, or
(b) a condensation product of (i) a substituted phenol sulfonic acid which is an arylphenol sulfonic acid or an aralkylphenol sulfonic acid and (ii) an aryl sulfonic acid with from about 0.5 to about 4 moles of formaldehyde per mole of substituted phenol sulfonic acid and aryl sulfonic acid wherein the weight ratio of substituted phenol sulfonic acid to aryl sulfonic acid is from about 0.95:0.05 to about 0.05:0.95.
The dispersing agent may be used directly or reacted with a salt forming cation to obtain a salt. The condensation product is useful as a dispersing agent in hydraulic cement, mortar, concrete or the like.
分散剂
(a) 芳基
苯酚磺酸或芳烷基
苯酚磺酸与每摩尔取代
苯酚磺酸含有约 0.5 至约 4 摩尔
甲醛的取代
苯酚磺酸的缩合产物,或
(b) (i)取代
酚磺酸的缩合产物,该取代
酚磺酸是芳基
酚磺酸或芳基
酚磺酸和 (ii)芳基
磺酸,每摩尔取代
酚磺酸和芳基
磺酸含有约 0.5 至约 4 摩尔
甲醛,其中取代
酚磺酸和芳基
磺酸的重量比为约 0.95:0.05 至约 0.05:0.95。
分散剂可直接使用或与成盐阳离子反应得到盐。缩合产物可用作
水硬性
水泥、灰浆、混凝土或类似材料中的分散剂。