Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-adsorption dispersing type polycarboxylate superplasticizer as well as preparation method and application thereof
The invention belongs to the field of water reducing agents, and particularly relates to a high-adsorption dispersing type polycarboxylic acid water reducing agent as well as a preparation method and application thereof. The high-adsorption dispersing type polycarboxylate superplasticizer comprises a polyether structural unit, a carboxylic acid structural unit and an esterification structural unit in a mass ratio of 180: (15-25): (2-6). The preparation method is characterized in that a polyether structure unit, a carboxylic acid structure unit and an esterification structure unit with specific structures are simultaneously introduced into a polycarboxylic acid molecular chain, so that the dispersing performance of the polycarboxylic acid water reducer can be greatly improved, and the weakening of the adsorption of montmorillonite and the like on the polycarboxylic acid water reducer is facilitated; the mud resistance of the polycarboxylate superplasticizer is improved.
本发明属于减水剂领域，具体涉及一种高吸附分散型聚羧酸减水剂及其制备方法和应用。所述高吸附分散型聚羧酸减水剂包括质量比为180:(15～25):(2～6)的聚醚结构单元、羧酸结构单元以及酯化结构单元。本发明的关键在于将具有特定结构的聚醚结构单元、羧酸结构单元以及酯化结构单元同时引入聚羧酸分子链上，如此不仅可以大幅度提高聚羧酸减水剂的分散性能，而且还有利于削弱蒙脱土等对聚羧酸减水剂的吸附，提升聚羧酸减水剂的抗泥性能。
High-adsorption dispersing type polycarboxylate superplasticizer as well as preparation method and application thereof
The invention belongs to the field of water reducing agents, and particularly relates to a high-adsorption dispersing type polycarboxylic acid water reducing agent as well as a preparation method and application thereof. The high-adsorption dispersing type polycarboxylate superplasticizer comprises a polyether structural unit, a carboxylic acid structural unit and an esterification structural unit in a mass ratio of 180: (15-25): (2-6). The preparation method is characterized in that a polyether structure unit, a carboxylic acid structure unit and an esterification structure unit with specific structures are simultaneously introduced into a polycarboxylic acid molecular chain, so that the dispersing performance of the polycarboxylic acid water reducer can be greatly improved, and the weakening of the adsorption of montmorillonite and the like on the polycarboxylic acid water reducer is facilitated; the mud resistance of the polycarboxylate superplasticizer is improved.
本发明属于减水剂领域，具体涉及一种高吸附分散型聚羧酸减水剂及其制备方法和应用。所述高吸附分散型聚羧酸减水剂包括质量比为180:(15～25):(2～6)的聚醚结构单元、羧酸结构单元以及酯化结构单元。本发明的关键在于将具有特定结构的聚醚结构单元、羧酸结构单元以及酯化结构单元同时引入聚羧酸分子链上，如此不仅可以大幅度提高聚羧酸减水剂的分散性能，而且还有利于削弱蒙脱土等对聚羧酸减水剂的吸附，提升聚羧酸减水剂的抗泥性能。
High-adsorption dispersing type polycarboxylate superplasticizer as well as preparation method and application thereof
一种高吸附分散型聚羧酸减水剂及其制备方法和应用
LAI HUAZHEN (Autor:in) / CHEN ZHANHUA (Autor:in) / FANG YUNHUI (Autor:in) / WANG ZHAOPENG (Autor:in) / ZHOU LONGJIE (Autor:in) / GUO YUANQIANG (Autor:in) / YAO LIANGKE (Autor:in) / WANG YANGJIE (Autor:in) / LIN TIANXING (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
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