脂肪族高效减水剂的合成改性研究

Synthesis modification research on aliphatic series high efficiency reducing water agent

为淡化脂肪族混凝土高效减水剂的颜色,并保持其减水性能,用对氨基苯磺酸钠取代部分亚硫酸钠对其进行改性。正交实验表明,亚硫酸钠∶对氨基苯磺酸钠=0.24∶0.12,丙酮∶甲醛=1∶2.0,缩合时间5 h,合成产品性能最好。

For desalting the color of aliphatic series high efficiency water reducing agent,and keep the water reducing performance,used aminobenzene sulfonic acid to partly replace sodium sulfite sodium on the modified.The orthogonal experiment show that,sodium sulfite sodium ∶ aminobenzene sulfonic acid =0.24∶ 0.12,acetonum ∶ methanal =1 ∶ 2.0,condensation time is 5 h,synthetic products performance is best.