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发明授权
CN101701050B 梳形水泥分散剂的制备方法及梳形水泥分散剂 有权 转让 许可

梳形水泥分散剂的制备方法及梳形水泥分散剂
摘要：
本发明提供了一种梳形水泥分散剂的制备方法和根据上述制备方法得到的梳形水泥分散剂，不需要经过繁琐的酯化反应，制备方法简单，生产操作方便，同时所得梳形水泥分散剂具有掺量低、分散性好、减水率高、坍落度损失小的优点。所述梳形水泥分散剂的制备方法，是由单体a、b和c在水性介质中发生自由基共聚反应，其中：单体a用通式(1)表示，单体b用通式(2)表示，单体c用通式(3)表示。本发明所述梳形水泥分散剂能极大增强水泥颗粒之间的空间位阻作用，提高水泥的分散稳定性。该分散剂制备方法简单，生产操作方便，不需要经过繁琐的酯化反应，同时所得梳形水泥分散剂具有掺量低、分散性好、减水率高、坍落度损失小的优点。
摘要（英）：

The invention provides a preparation method of comb formation cement dispersant and a comb formation cement dispersant obtained by the preparation method. The preparation method dispenses with complicated esterification reaction, is simple and convenient for production, and the comb formation cement dispersant obtained by the preparation method has the advantages of low doping amount, good dispersity, high water-reducing rate, and small slumps loss. The preparation method of comb formation cement dispersant is that monomers a, b, c are subject to radical copolymerization reaction in an aqueous medium, wherein monomer a is represented by general formula (I), monomer b by general formula (II), and monomer c by general formula (III). The inventive comb formation cement dispersant can greatlyreinforce the steric clash action among cement particles, and improve dispersion stability of cement. The dispersant preparation method is simple and convenient for production, needs not to go through complicated esterification reaction, and the comb formation cement dispersant obtained by the preparation method has the advantages of low doping amount, good dispersity, high water-reducing rate, and small slumps loss.

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