A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-adaptability ether polycarboxylic acid and preparation method thereof
The invention discloses a high-adaptability ether polycarboxylic acid and a preparation method thereof. The invention discloses the high-adaptability ether polycarboxylic acid. The preparation method comprises the following steps: (1) heating and stirring isopentenol polyoxyethylene ether and water, firstly adding alpha-methacrylic acid for reaction, then dropwise adding thioglycollic acid for reaction, and then adding polyethylene glycol for mixing to obtain a component A; (2) mixing and dissolving hydrogen peroxide, ammonium persulfate and vitamin C to obtain a component B; and (3) dropwise adding the component B obtained in the step (2) into the component A obtained in the step (1), reacting, and adjusting the pH value to obtain the high-adaptability ether polycarboxylic acid. The high-adaptability ether polycarboxylic acid disclosed by the invention is very high in adaptability and good in compatibility with Portland cement and various auxiliary cementing materials. The preparation method can be carried out at normal temperature, and is simple in process, low in cost and suitable for industrial production.
一种高适应性醚类聚羧酸及其制备方法，本发明公开了一种高适应性醚类聚羧酸。所述制备方法包括以下步骤：（1）将异戊烯醇聚氧乙烯醚和水加热搅拌后，先加入α‑甲基丙烯酸反应，再滴加硫代乙醇酸反应后，再加入聚乙二醇混合，得A组分；（2）将双氧水、过硫酸铵和维生素C混合溶解后，得B组分；（3）将步骤（2）所得B组分滴入步骤（1）所得A组分中，反应后，调节pH值，得高适应性醚类聚羧酸。本发明高适应性醚类聚羧酸适应性很高，与硅酸盐水泥及各类辅助性胶凝材料的相容性好。本发明制备方法可在常温下进行，工艺简单，成本低，适宜于工业化生产。
High-adaptability ether polycarboxylic acid and preparation method thereof
The invention discloses a high-adaptability ether polycarboxylic acid and a preparation method thereof. The invention discloses the high-adaptability ether polycarboxylic acid. The preparation method comprises the following steps: (1) heating and stirring isopentenol polyoxyethylene ether and water, firstly adding alpha-methacrylic acid for reaction, then dropwise adding thioglycollic acid for reaction, and then adding polyethylene glycol for mixing to obtain a component A; (2) mixing and dissolving hydrogen peroxide, ammonium persulfate and vitamin C to obtain a component B; and (3) dropwise adding the component B obtained in the step (2) into the component A obtained in the step (1), reacting, and adjusting the pH value to obtain the high-adaptability ether polycarboxylic acid. The high-adaptability ether polycarboxylic acid disclosed by the invention is very high in adaptability and good in compatibility with Portland cement and various auxiliary cementing materials. The preparation method can be carried out at normal temperature, and is simple in process, low in cost and suitable for industrial production.
一种高适应性醚类聚羧酸及其制备方法，本发明公开了一种高适应性醚类聚羧酸。所述制备方法包括以下步骤：（1）将异戊烯醇聚氧乙烯醚和水加热搅拌后，先加入α‑甲基丙烯酸反应，再滴加硫代乙醇酸反应后，再加入聚乙二醇混合，得A组分；（2）将双氧水、过硫酸铵和维生素C混合溶解后，得B组分；（3）将步骤（2）所得B组分滴入步骤（1）所得A组分中，反应后，调节pH值，得高适应性醚类聚羧酸。本发明高适应性醚类聚羧酸适应性很高，与硅酸盐水泥及各类辅助性胶凝材料的相容性好。本发明制备方法可在常温下进行，工艺简单，成本低，适宜于工业化生产。
High-adaptability ether polycarboxylic acid and preparation method thereof
一种高适应性醚类聚羧酸及其制备方法
XIANG SHUNCHENG (author) / HUANG QING (author) / GAO YINGLI (author) / JIANG ZHEN (author) / LIU BIN (author) / ZENG WEI (author)
2022-09-20
Patent
Electronic Resource
Chinese
High-adaptability six-carbon polycarboxylic acid additive and preparation method thereof
| European Patent Office | 2023
| European Patent Office | 2020
| European Patent Office | 2024
| European Patent Office | 2020
| European Patent Office | 2021