Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Block type polycarboxylate water reducing agent and preparation method thereof
The invention belongs to the technical field of functional polymer material preparation, and particularly relates to a block type polycarboxylate water reducing agent and a preparation method thereof. Based on the molecular structure design theory, the novel polycarboxylate water reducing agent with the main chain being an anion structure and the side chain being an anion and nonionic block is synthesized, the structure of the novel polycarboxylate water reducing agent is different from that of a traditional comb-type polycarboxylate water reducing agent, the novel polycarboxylate water reducing agent is an innovation and breakthrough of the molecular structure of the polycarboxylate water reducing agent, and the thought and direction of research in the field of water reducing agents are broadened. Compared with a traditional polycarboxylate water reducing agent, the block type polycarboxylate water reducing agent provided by the invention shows more excellent cement dispersing capacity, and has the characteristics of high water reduction and high slump loss resistance. Meanwhile, the preparation method of the block type polycarboxylate water reducing agent provided by the invention is short in reaction period, free of solvent, mild in condition, simple and convenient in process and particularly beneficial to industrial production.
本发明属于功能高分子材料制备技术领域，具体涉及一种嵌段型聚羧酸减水剂及其制备方法。本发明基于分子结构设计理论，合成了主链为阴离子结构，侧链为阴离子和非离子嵌段的新型聚羧酸减水剂，其结构有别于传统梳型聚羧酸减水剂，是聚羧酸减水剂分子结构的一次创新和突破，为减水剂领域研究拓宽了思路和方向。与传统的聚羧酸减水剂相比，本发明提供的嵌段型聚羧酸减水剂表现出更优异的水泥分散能力，具有高减水，高保坍的特点。同时，本发明提供的嵌段型聚羧酸减水剂的制备方法，反应周期短，无需使用溶剂，条件温和，工艺简便，特别有利于工业化生产。
Block type polycarboxylate water reducing agent and preparation method thereof
The invention belongs to the technical field of functional polymer material preparation, and particularly relates to a block type polycarboxylate water reducing agent and a preparation method thereof. Based on the molecular structure design theory, the novel polycarboxylate water reducing agent with the main chain being an anion structure and the side chain being an anion and nonionic block is synthesized, the structure of the novel polycarboxylate water reducing agent is different from that of a traditional comb-type polycarboxylate water reducing agent, the novel polycarboxylate water reducing agent is an innovation and breakthrough of the molecular structure of the polycarboxylate water reducing agent, and the thought and direction of research in the field of water reducing agents are broadened. Compared with a traditional polycarboxylate water reducing agent, the block type polycarboxylate water reducing agent provided by the invention shows more excellent cement dispersing capacity, and has the characteristics of high water reduction and high slump loss resistance. Meanwhile, the preparation method of the block type polycarboxylate water reducing agent provided by the invention is short in reaction period, free of solvent, mild in condition, simple and convenient in process and particularly beneficial to industrial production.
本发明属于功能高分子材料制备技术领域，具体涉及一种嵌段型聚羧酸减水剂及其制备方法。本发明基于分子结构设计理论，合成了主链为阴离子结构，侧链为阴离子和非离子嵌段的新型聚羧酸减水剂，其结构有别于传统梳型聚羧酸减水剂，是聚羧酸减水剂分子结构的一次创新和突破，为减水剂领域研究拓宽了思路和方向。与传统的聚羧酸减水剂相比，本发明提供的嵌段型聚羧酸减水剂表现出更优异的水泥分散能力，具有高减水，高保坍的特点。同时，本发明提供的嵌段型聚羧酸减水剂的制备方法，反应周期短，无需使用溶剂，条件温和，工艺简便，特别有利于工业化生产。
Block type polycarboxylate water reducing agent and preparation method thereof
一种嵌段型聚羧酸减水剂及其制备方法
FANG FUXIAN (Autor:in) / HE XINYAO (Autor:in) / LI YUBO (Autor:in)
30.07.2021
Patent
Elektronische Ressource
Chinesisch
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