聚羧酸系高性能超塑化剂的研究进展

聚羧酸系超塑化剂由含磺酸基团、羧酸基团、聚氧烷基烯基团等不饱和单体在引发剂作用下合成的梳型高分子类聚合物,具有掺量低、减水率高以及增强效果显著等优点,是高性能混凝土中不可缺少的组分。随着高分子合成化学和高分子设计理论不断取得新的进展,成为高性能超塑化剂领域的研究热点。本文综述了国内外聚羧酸系超塑化剂的最新研究概况,对聚羧酸系超塑化剂的合成及作用机理进行了探讨,介绍了聚羧酸系超塑化剂所面临的问题,并对未来研究与应用发展方向进行了预测。

Development of High Performance Polycarboxylic Superplasticizers

Polycarboxylic superplasticizers as one comb-type polymers were synthesized by unsaturated monomers such as containing sulfonic acid,carboxylic acid,and polyethylene oxide groups and so on.Polycarboxylic superplasticizers have low dosage,high water reducing rate and clear effect on strength rise,and were an absolute necessity to achieve high quality concrete as construction materials.Now with the development of polymer chemistry and polymer synthesis design theory,polycarboxylic superplasticizers have been ...