Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Super-early-strength polycarboxylate-type water reducing agent as well as preparation method and application thereof
The invention relates to a super-early-strength polycarboxylate-type water reducing agent. The super-early-strength polycarboxylate-type water reducing agent is prepared from the following raw material components: unsaturated polyoxyethylene polyoxypropylene block amine ether, polyethylene glycol monomethyl ether ester, unsaturated monocarboxylic acid, amino unsaturated acid ester, acrylamide monomers, an alkali metal hydroxide solution, a thiocyanate early strength agent, an oxidizing agent, a reducing agent, a chain transfer agent and water. Wherein the polyethylene glycol monomethyl ether ester is an esterification product obtained by reacting polyethylene glycol monomethyl ether with unsaturated monocarboxylic acid under an acidic condition; wherein the amino unsaturated acid ester is an esterification product of unsaturated monocarboxylic acid and N, N-dialkylethanolamine. The invention further relates to a preparation method and application of the super-early-strength polycarboxylate-type water reducing agent. The super-early-strength polycarboxylate-type water reducing agent promotes hydration of cement, does not contain any active reinforcing admixture, and has remarkable economic benefits, social benefits and environmental benefits; and the preparation process is simple and convenient to operate.
本申请涉及一种超早强型聚羧酸系减水剂，其特征在于，其由下述原料组分制成：不饱和聚氧乙烯聚氧丙烯嵌段胺醚、聚乙二醇单甲醚酯化物、不饱和一元羧酸、氨基不饱和酸酯、丙烯酰胺类单体、碱金属氢氧化物溶液、硫氰酸盐类早强剂、氧化剂、还原剂、链转移剂和水；所述聚乙二醇单甲醚酯化物为聚乙二醇单甲醚与不饱和一元羧酸在酸性条件下反应得到的酯化产物；所述氨基不饱和酸酯为不饱和一元羧酸与N,N‑二烷基乙醇胺的酯化产物。本申请还涉及超早强型聚羧酸系减水剂的制备方法及其应用。本申请的超早强型聚羧酸系减水剂促进了水泥水化，不添加任何活性增强掺合料，具有显著的经济效益、社会效益和环境效益；且制备工艺简单，操作方便。
Super-early-strength polycarboxylate-type water reducing agent as well as preparation method and application thereof
The invention relates to a super-early-strength polycarboxylate-type water reducing agent. The super-early-strength polycarboxylate-type water reducing agent is prepared from the following raw material components: unsaturated polyoxyethylene polyoxypropylene block amine ether, polyethylene glycol monomethyl ether ester, unsaturated monocarboxylic acid, amino unsaturated acid ester, acrylamide monomers, an alkali metal hydroxide solution, a thiocyanate early strength agent, an oxidizing agent, a reducing agent, a chain transfer agent and water. Wherein the polyethylene glycol monomethyl ether ester is an esterification product obtained by reacting polyethylene glycol monomethyl ether with unsaturated monocarboxylic acid under an acidic condition; wherein the amino unsaturated acid ester is an esterification product of unsaturated monocarboxylic acid and N, N-dialkylethanolamine. The invention further relates to a preparation method and application of the super-early-strength polycarboxylate-type water reducing agent. The super-early-strength polycarboxylate-type water reducing agent promotes hydration of cement, does not contain any active reinforcing admixture, and has remarkable economic benefits, social benefits and environmental benefits; and the preparation process is simple and convenient to operate.
本申请涉及一种超早强型聚羧酸系减水剂，其特征在于，其由下述原料组分制成：不饱和聚氧乙烯聚氧丙烯嵌段胺醚、聚乙二醇单甲醚酯化物、不饱和一元羧酸、氨基不饱和酸酯、丙烯酰胺类单体、碱金属氢氧化物溶液、硫氰酸盐类早强剂、氧化剂、还原剂、链转移剂和水；所述聚乙二醇单甲醚酯化物为聚乙二醇单甲醚与不饱和一元羧酸在酸性条件下反应得到的酯化产物；所述氨基不饱和酸酯为不饱和一元羧酸与N,N‑二烷基乙醇胺的酯化产物。本申请还涉及超早强型聚羧酸系减水剂的制备方法及其应用。本申请的超早强型聚羧酸系减水剂促进了水泥水化，不添加任何活性增强掺合料，具有显著的经济效益、社会效益和环境效益；且制备工艺简单，操作方便。
Super-early-strength polycarboxylate-type water reducing agent as well as preparation method and application thereof
一种超早强型聚羧酸系减水剂及其制备方法和应用
XU JUN (Autor:in) / JI JINWEI (Autor:in) / LUO QIONG (Autor:in) / ZHAI LIJIE (Autor:in) / PAN HUANYU (Autor:in) / ZHANG PENGFEI (Autor:in)
20.04.2021
Patent
Elektronische Ressource
Chinesisch
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