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发明公开
CN104261719A 一种高性能聚羧酸减水剂及其制备方法 有权 转让

一种高性能聚羧酸减水剂及其制备方法
摘要：
本发明公开了一种高性能聚羧酸减水剂，该聚羧酸减水剂具有结构式(Ⅰ)的结构通式，本发明还提供一种高性能聚羧酸减水剂的制备方法，除聚醚大单体、不饱和羧酸单体外，加入不饱和磷酸酯单体、得到产物即为具有磷酸酯结构的高性能聚羧酸减水剂。本发明公开的聚羧酸减水剂制备工艺安全简单、绿色环保、能耗低、成本低，适合工业规模化生产。其中，R1为-H、-COO-或-CH2COO-；R2为-H或-CH3；R3为-H或-CH3；R4为-H或-CH3；R5为-H或-CH3；R6为-CH2-或-CH2CH2-；X、Y、Z和n均为整数，X＝1-100，Y＝1-100，Z＝1-100，n＝22-53。
摘要（英）：

The invention discloses a high-performance polycarboxylate water reducing agent. The polycarboxylate water reducing agent has a structural general formula shown as a structural formula (I). The invention further provides a preparation method of the high-performance polycarboxylate water reducing agent. Apart from a polyether macromonomer and an unsaturated carboxylic acid monomer, an unsaturated phosphate monomer is added to obtain a product, namely, the high-performance polycarboxylate water reducing agent having a phosphate structure. The polycarboxylate water reducing agent disclosed by the invention is safe and simple in preparation process, environmentally friendly, low in energy consumption, low in cost, and suitable for industrial large-scale production. In the structural formula (I), R1 is -H, -COO- or -CH2COO-; R2 is -H or -CH3; R3 is -H or -CH3; R4 is -H or -CH3; R5 is -H or -CH3; R6 is -CH2- or -CH2CH2-; X, Y, Z and n are integers; X=1-100; Y=1-100; Z=1-100; and n=22-53.

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