A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of water reducing agents, in particular to a preparation method of a polycarboxylic acid high-performance water reducing agent. Comprising the following steps: weighing the following raw materials in parts by weight: allyl polyethylene glycol, methacrylic acid, unsaturated polyether, waterborne polyurethane emulsion, hexafluorobutyl methacrylate, high-valence manganese salt, an initiator, aluminum isopropoxide, deionized water, polymer colloid, a nitric acid solution and a chain transfer agent; preparing a first mixed material; preparing a second mixed material; preparing a solution A; preparing a solution B; and adding the solution B into a reactor, dropwise adding the solution A, and adding the first mixed material and the second mixed material to obtain the polycarboxylate superplasticizer. The invention aims to solve the technical problems of large mixing amount, poor water reducing property and poor plasticizing effect, and provides a preparation method of a polycarboxylic acid high-performance water reducing agent.
本发明涉及减水剂技术领域，尤其涉及一种聚羧酸高性能减水剂的制备方法。包括以下步骤：按以下重量份称取原料，包括烯丙基聚乙二醇、甲基丙烯酸、不饱和聚醚、水性聚氨酯乳液、甲基丙烯酸六氟丁酯、高价锰盐、引发剂、异丙醇铝、去离子水、高分子胶体、硝酸溶液、链转移剂；制备第一混合物料；制备第二混合物料；制备溶液A；制备溶液B；在反应器中加入B溶液，滴加A溶液，加入第一混合物料和第二混合物料，得聚羧酸减水剂。本发明的目的是为了解决掺量大，减水性差，增塑效果差的技术问题，提出了一种聚羧酸高性能减水剂的制备方法。
The invention relates to the technical field of water reducing agents, in particular to a preparation method of a polycarboxylic acid high-performance water reducing agent. Comprising the following steps: weighing the following raw materials in parts by weight: allyl polyethylene glycol, methacrylic acid, unsaturated polyether, waterborne polyurethane emulsion, hexafluorobutyl methacrylate, high-valence manganese salt, an initiator, aluminum isopropoxide, deionized water, polymer colloid, a nitric acid solution and a chain transfer agent; preparing a first mixed material; preparing a second mixed material; preparing a solution A; preparing a solution B; and adding the solution B into a reactor, dropwise adding the solution A, and adding the first mixed material and the second mixed material to obtain the polycarboxylate superplasticizer. The invention aims to solve the technical problems of large mixing amount, poor water reducing property and poor plasticizing effect, and provides a preparation method of a polycarboxylic acid high-performance water reducing agent.
本发明涉及减水剂技术领域，尤其涉及一种聚羧酸高性能减水剂的制备方法。包括以下步骤：按以下重量份称取原料，包括烯丙基聚乙二醇、甲基丙烯酸、不饱和聚醚、水性聚氨酯乳液、甲基丙烯酸六氟丁酯、高价锰盐、引发剂、异丙醇铝、去离子水、高分子胶体、硝酸溶液、链转移剂；制备第一混合物料；制备第二混合物料；制备溶液A；制备溶液B；在反应器中加入B溶液，滴加A溶液，加入第一混合物料和第二混合物料，得聚羧酸减水剂。本发明的目的是为了解决掺量大，减水性差，增塑效果差的技术问题，提出了一种聚羧酸高性能减水剂的制备方法。
Preparation method of polycarboxylic acid high-performance water reducing agent
一种聚羧酸高性能减水剂的制备方法
MENG BIN (author)
2023-04-07
Patent
Electronic Resource
Chinese
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