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A platform for research: civil engineering, architecture and urbanism
Water reducing agent for calcined kaolin-cement system as well as preparation method and application of water reducing agent
The invention discloses a water reducing agent for a calcined kaolin-cement system as well as a preparation method and application of the water reducing agent. Comprising the following steps: step 1, adding hydroxybutyl vinyl polyoxyethylene ether (VPEG) and an oxidizing agent into water, and uniformly stirring until the VPEG and the oxidizing agent are dissolved to obtain a mixed solution; step 2, adding carboxylic acid monomers and cationic monomers into water, and stirring until the carboxylic acid monomers and the cationic monomers are dissolved to obtain a mixed solution A; adding a reducing agent into water and stirring until the reducing agent is dissolved to obtain a mixed solution B; adding a chain transfer agent into water, and stirring until the chain transfer agent is dissolved to obtain a mixed solution C; and step 3, simultaneously dropwise adding the mixed solution A, the mixed solution B and the mixed solution C obtained in the step 2 into the mixed solution obtained in the step 1, uniformly stirring, and adjusting the pH value to obtain the water reducing agent for the calcined kaolin-cement system. The preparation method takes water as a dispersion medium, and is simple in preparation process, low in cost and easy to realize industrial production.
本发明公开了一种煅烧高岭土‑水泥体系用减水剂及其制备方法与应用。包括以下步骤，步骤1，将羟丁基乙烯基聚氧乙烯醚(VPEG)和氧化剂加入水中搅拌均匀至溶解，得到混合溶液；步骤2，将羧酸类单体、阳离子单体加入水中搅拌至溶解，得到混合溶液A；将还原剂加入水中搅拌至溶解，得到混合溶液B；将链转移剂加入水中搅拌至溶解，得到混合溶液C；步骤3，将步骤2所得的混合溶液A、混合溶液B和混合溶液C同时滴加到步骤1所得的混合溶液中，搅拌均匀，调节pH，得到煅烧高岭土‑水泥体系用减水剂。本发明的制备方法以水为分散介质，制备工艺简单，成本低，易实现工业化生产。
Water reducing agent for calcined kaolin-cement system as well as preparation method and application of water reducing agent
The invention discloses a water reducing agent for a calcined kaolin-cement system as well as a preparation method and application of the water reducing agent. Comprising the following steps: step 1, adding hydroxybutyl vinyl polyoxyethylene ether (VPEG) and an oxidizing agent into water, and uniformly stirring until the VPEG and the oxidizing agent are dissolved to obtain a mixed solution; step 2, adding carboxylic acid monomers and cationic monomers into water, and stirring until the carboxylic acid monomers and the cationic monomers are dissolved to obtain a mixed solution A; adding a reducing agent into water and stirring until the reducing agent is dissolved to obtain a mixed solution B; adding a chain transfer agent into water, and stirring until the chain transfer agent is dissolved to obtain a mixed solution C; and step 3, simultaneously dropwise adding the mixed solution A, the mixed solution B and the mixed solution C obtained in the step 2 into the mixed solution obtained in the step 1, uniformly stirring, and adjusting the pH value to obtain the water reducing agent for the calcined kaolin-cement system. The preparation method takes water as a dispersion medium, and is simple in preparation process, low in cost and easy to realize industrial production.
本发明公开了一种煅烧高岭土‑水泥体系用减水剂及其制备方法与应用。包括以下步骤，步骤1，将羟丁基乙烯基聚氧乙烯醚(VPEG)和氧化剂加入水中搅拌均匀至溶解，得到混合溶液；步骤2，将羧酸类单体、阳离子单体加入水中搅拌至溶解，得到混合溶液A；将还原剂加入水中搅拌至溶解，得到混合溶液B；将链转移剂加入水中搅拌至溶解，得到混合溶液C；步骤3，将步骤2所得的混合溶液A、混合溶液B和混合溶液C同时滴加到步骤1所得的混合溶液中，搅拌均匀，调节pH，得到煅烧高岭土‑水泥体系用减水剂。本发明的制备方法以水为分散介质，制备工艺简单，成本低，易实现工业化生产。
Water reducing agent for calcined kaolin-cement system as well as preparation method and application of water reducing agent
煅烧高岭土-水泥体系用减水剂及其制备方法与应用
GUO JINTANG (author) / CHANG QINGLU (author) / LIU MING (author) / HU MIAOMIAO (author) / REN XIANGKUI (author)
2023-06-06
Patent
Electronic Resource
Chinese
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