Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing high-performance poly-carboxylic water reducer
The invention relates to the technical field of water reducers and particularly relates to a method for preparing a high-performance poly-carboxylic water reducer. According to the method, allyl polyoxyethylene ether is adopted as a base material, a certain amount and concentration of an oxidant is added until the temperature is raised to a predetermined value and stirred for a certain time and a high-concentration polyacrylic acid aqueous solution and an adjustment-reduction mixed liquid are simultaneously dropwise added, the adding procedure is simple, reaction conditions are easy to control and the product has high cost-effective ratio. By controlling process conditions, an ether poly-carboxylic water reducer, which has the advantages of strong applicability, high water reduction rate and good slump loss resistance, can be prepared.
Method for preparing high-performance poly-carboxylic water reducer
The invention relates to the technical field of water reducers and particularly relates to a method for preparing a high-performance poly-carboxylic water reducer. According to the method, allyl polyoxyethylene ether is adopted as a base material, a certain amount and concentration of an oxidant is added until the temperature is raised to a predetermined value and stirred for a certain time and a high-concentration polyacrylic acid aqueous solution and an adjustment-reduction mixed liquid are simultaneously dropwise added, the adding procedure is simple, reaction conditions are easy to control and the product has high cost-effective ratio. By controlling process conditions, an ether poly-carboxylic water reducer, which has the advantages of strong applicability, high water reduction rate and good slump loss resistance, can be prepared.
Method for preparing high-performance poly-carboxylic water reducer
YU DINGXIN (Autor:in) / CHEN GANG (Autor:in) / GONG XIAODONG (Autor:in) / LI BIN (Autor:in) / XIA HAIPING (Autor:in) / PAN BING (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
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