萘系季铵盐型高效减水剂

High efficiency water reducer of naphthalene series quaternary ammonium salt type

以β-萘磺酸甲醛缩合物钠盐和季铵盐为原料 ,通过离子交换树脂法制备了6种不同结构季铵阳离子所对应的萘磺酸甲醛缩合物盐 ,研究了它们对水泥净浆的流动度和抗压强度的影响 。

To use β-naphthalene sulfonic acidformaldehyde condensation product sodium salt and quaternary ammonium salt as raw materials,by the method of ion exchange resin,six kinds of naphthalene sulfonic acidformaldehyde condensation products,corresponded to quaternary cationics with same types of difference structures,have been prepared,Their influences on flowing property of net cement mortar and compression strength have been studied.Results indicates,these six kinds of naphthalene sulfonic acidformaldehyde condensation product quaternary ammonium salts have excellent dispersiveness,as well as water-reducing and strength-increasing abilities.