Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synthesis method of diethylene glycol monovinyl polyether water reducer
The invention relates to the technical field of production of water reducing agents, and discloses a synthesis method of a diethylene glycol monovinyl polyether water reducing agent, which is characterized by comprising the following steps: A1, proportioning: mixing a small monomer with water, and uniformly stirring to prepare a solution A for later use; mixing a reducing agent, a chain transfer agent, a catalyst and water, and uniformly stirring to prepare a solution B for later use; A2, synthetic reaction: adding macromonomers and water into a reactor; gradually cooling and stirring, addingan oxidizing agent when the temperature is controlled to be a certain value and the macromonomer is completely dissolved, mixing and stirring, dropwise adding the solution A and the solution B at a constant speed, keeping a certain temperature for heat preservation reaction after dropwise adding is completed, and standing the reacted material to room temperature, so as to obtain the diethylene glycol monovinyl polyether water reducing agent. According to the synthetic method of the diethylene glycol monovinyl polyether water reducing agent, the production cost can be effectively reduced, and the produced water reducing agent product is good in dispersing performance and slump retaining performance and has high quality.
本发明涉及减水剂生产技术领域，公开了一种二乙二醇单乙烯基聚醚减水剂的合成方法，其特征在于，包括以下步骤：A1:配料：将小单体与水混合，搅拌均匀，配制成A液，待用；将还原剂、链转移剂、催化剂与水混合，搅拌均匀，配制成B液，待用；A2:合成反应：将大单体和水加入到反应器中，逐渐降温并搅拌，待控制到一定温度且大单体完全溶解时，加入氧化剂，混合搅拌，再同时匀速滴加入A液和B液，滴加完成后保持一定温度进行保温反应，将反应后物料静置至室温，即制得二乙二醇单乙烯基聚醚减水剂。本发明的二乙二醇单乙烯基聚醚减水剂的合成方法，可以有效降低生产成本，且生产出的减水剂产品分散性能和保坍性能良好，具有较高品质。
Synthesis method of diethylene glycol monovinyl polyether water reducer
The invention relates to the technical field of production of water reducing agents, and discloses a synthesis method of a diethylene glycol monovinyl polyether water reducing agent, which is characterized by comprising the following steps: A1, proportioning: mixing a small monomer with water, and uniformly stirring to prepare a solution A for later use; mixing a reducing agent, a chain transfer agent, a catalyst and water, and uniformly stirring to prepare a solution B for later use; A2, synthetic reaction: adding macromonomers and water into a reactor; gradually cooling and stirring, addingan oxidizing agent when the temperature is controlled to be a certain value and the macromonomer is completely dissolved, mixing and stirring, dropwise adding the solution A and the solution B at a constant speed, keeping a certain temperature for heat preservation reaction after dropwise adding is completed, and standing the reacted material to room temperature, so as to obtain the diethylene glycol monovinyl polyether water reducing agent. According to the synthetic method of the diethylene glycol monovinyl polyether water reducing agent, the production cost can be effectively reduced, and the produced water reducing agent product is good in dispersing performance and slump retaining performance and has high quality.
本发明涉及减水剂生产技术领域，公开了一种二乙二醇单乙烯基聚醚减水剂的合成方法，其特征在于，包括以下步骤：A1:配料：将小单体与水混合，搅拌均匀，配制成A液，待用；将还原剂、链转移剂、催化剂与水混合，搅拌均匀，配制成B液，待用；A2:合成反应：将大单体和水加入到反应器中，逐渐降温并搅拌，待控制到一定温度且大单体完全溶解时，加入氧化剂，混合搅拌，再同时匀速滴加入A液和B液，滴加完成后保持一定温度进行保温反应，将反应后物料静置至室温，即制得二乙二醇单乙烯基聚醚减水剂。本发明的二乙二醇单乙烯基聚醚减水剂的合成方法，可以有效降低生产成本，且生产出的减水剂产品分散性能和保坍性能良好，具有较高品质。
Synthesis method of diethylene glycol monovinyl polyether water reducer
一种二乙二醇单乙烯基聚醚减水剂的合成方法
HUANG FENGXIANG (Autor:in) / LIU CAILIN (Autor:in) / ZHANG HENGTONG (Autor:in) / YANG JUN (Autor:in) / WU BO (Autor:in)
16.10.2020
Patent
Elektronische Ressource
Chinesisch
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