A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polycarboxylate superplasticizer based on 6C polyether macromonomer and preparation method thereof
The invention relates to the technical field of concrete admixtures, and discloses a polycarboxylate superplasticizer based on a 6C polyether macromonomer and a preparation method thereof, the polycarboxylate superplasticizer is prepared from the following raw material components through a chain transfer reaction: an acrylic monomer and diethylene glycol monovinyl ether, the molar mass ratio of the acrylic monomer to the diethylene glycol monovinyl ether is 3.5-5.5: 1; a catalyst used in the reaction is iron oxide, the iron oxide comprises ferric oxide and/or ferroferric oxide, and the addition amount of the iron oxide is 0.015-0.065% of the total amount of the raw material components; and the invention also discloses a preparation method. According to the polycarboxylate superplasticizer, the production condition is simple and easy to implement, industrial production is easy to realize, the cement dispersing performance and slump retaining performance of the product are excellent, the compressive strength of hardened concrete doped with the product in all ages is good, and the polycarboxylate superplasticizer is suitable for mortar and concrete preparation.
本发明涉及混凝土外加剂技术领域，公开了基于6C聚醚大单体的聚羧酸减水剂及其制备方法，包括以下原料组分经链转移反应得到：丙烯酸类单体和二乙二醇单乙烯基醚，丙烯酸类单体与二乙二醇单乙烯基醚的摩尔质量比为3.5～5.5:1；反应采用的催化剂为铁氧化物，铁氧化物包括三氧化二铁和/或四氧化三铁，铁氧化物加入量为原料组分总量的0.015～0.065％；同时公开了其制备方法。本申请的聚羧酸减水剂，生产条件简便易行、易于实现工业化生产，且产品的水泥分散性能和保坍性能优异，掺加有本产品的硬化混凝土各龄期的抗压强度好，本申请的聚羧酸减水剂适合于砂浆、混凝土配制。
Polycarboxylate superplasticizer based on 6C polyether macromonomer and preparation method thereof
The invention relates to the technical field of concrete admixtures, and discloses a polycarboxylate superplasticizer based on a 6C polyether macromonomer and a preparation method thereof, the polycarboxylate superplasticizer is prepared from the following raw material components through a chain transfer reaction: an acrylic monomer and diethylene glycol monovinyl ether, the molar mass ratio of the acrylic monomer to the diethylene glycol monovinyl ether is 3.5-5.5: 1; a catalyst used in the reaction is iron oxide, the iron oxide comprises ferric oxide and/or ferroferric oxide, and the addition amount of the iron oxide is 0.015-0.065% of the total amount of the raw material components; and the invention also discloses a preparation method. According to the polycarboxylate superplasticizer, the production condition is simple and easy to implement, industrial production is easy to realize, the cement dispersing performance and slump retaining performance of the product are excellent, the compressive strength of hardened concrete doped with the product in all ages is good, and the polycarboxylate superplasticizer is suitable for mortar and concrete preparation.
本发明涉及混凝土外加剂技术领域，公开了基于6C聚醚大单体的聚羧酸减水剂及其制备方法，包括以下原料组分经链转移反应得到：丙烯酸类单体和二乙二醇单乙烯基醚，丙烯酸类单体与二乙二醇单乙烯基醚的摩尔质量比为3.5～5.5:1；反应采用的催化剂为铁氧化物，铁氧化物包括三氧化二铁和/或四氧化三铁，铁氧化物加入量为原料组分总量的0.015～0.065％；同时公开了其制备方法。本申请的聚羧酸减水剂，生产条件简便易行、易于实现工业化生产，且产品的水泥分散性能和保坍性能优异，掺加有本产品的硬化混凝土各龄期的抗压强度好，本申请的聚羧酸减水剂适合于砂浆、混凝土配制。
Polycarboxylate superplasticizer based on 6C polyether macromonomer and preparation method thereof
基于6C聚醚大单体的聚羧酸减水剂及其制备方法
HUANG FENGXIANG (author) / YUAN BO (author) / YANG JUN (author) / LIU CAILIN (author) / ZHANG HENGTONG (author) / REN XIANYAN (author) / YANG HAIJUN (author)
2021-08-13
Patent
Electronic Resource
Chinese
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