Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ester polycarboxylic acid water reducer and preparation method thereof
The invention relates to an ester polycarboxylic acid water reducing agent, which is prepared from the following raw materials in parts by weight: 218 to 224 parts of polyester macromonomer, 25.9 to 29.5 parts of unsaturated acid, 5.60 to 7.20 parts of functional monomer, 0.56 to 0.83 part of chain transfer agent, 1.44 to 1.88 parts of initiator, 0.24 to 0.55 part of reducing agent and 250 to 257 parts of water, the polyester macromonomer comprises the following raw materials: unsaturated aromatic acid, polyethylene glycol and a catalyst. According to the invention, unsaturated aromatic acid and polyethylene glycol are used as raw materials to prepare the polyester macromonomer, then the polyester macromonomer, the functional monomer and unsaturated acid are subjected to ternary polymerization to prepare the ester polycarboxylic acid water reducing agent, and the prepared ester polycarboxylic acid water reducing agent has good workability and water reducing rate.
本发明涉及一种酯类聚羧酸减水剂，按重量份数计，包括以下原料：218～224份聚酯大单体、25.9～29.5份不饱和酸、5.60～7.20份功能单体、0.56～0.83份链转移剂、1.44～1.88份引发剂、0.24～0.55份还原剂、以及250～257份水；所述聚酯大单体的原料，包括不饱和芳香酸、聚乙二醇、催化剂。本发明以不饱和芳香酸与聚乙二醇为原料制备得到聚酯大单体，之后该聚酯大单体、功能单体与不饱和酸三元共聚制备得到的酯类聚羧酸减水剂，制备得到的酯类聚羧酸减水剂具有良好的和易性和减水率。
Ester polycarboxylic acid water reducer and preparation method thereof
The invention relates to an ester polycarboxylic acid water reducing agent, which is prepared from the following raw materials in parts by weight: 218 to 224 parts of polyester macromonomer, 25.9 to 29.5 parts of unsaturated acid, 5.60 to 7.20 parts of functional monomer, 0.56 to 0.83 part of chain transfer agent, 1.44 to 1.88 parts of initiator, 0.24 to 0.55 part of reducing agent and 250 to 257 parts of water, the polyester macromonomer comprises the following raw materials: unsaturated aromatic acid, polyethylene glycol and a catalyst. According to the invention, unsaturated aromatic acid and polyethylene glycol are used as raw materials to prepare the polyester macromonomer, then the polyester macromonomer, the functional monomer and unsaturated acid are subjected to ternary polymerization to prepare the ester polycarboxylic acid water reducing agent, and the prepared ester polycarboxylic acid water reducing agent has good workability and water reducing rate.
本发明涉及一种酯类聚羧酸减水剂，按重量份数计，包括以下原料：218～224份聚酯大单体、25.9～29.5份不饱和酸、5.60～7.20份功能单体、0.56～0.83份链转移剂、1.44～1.88份引发剂、0.24～0.55份还原剂、以及250～257份水；所述聚酯大单体的原料，包括不饱和芳香酸、聚乙二醇、催化剂。本发明以不饱和芳香酸与聚乙二醇为原料制备得到聚酯大单体，之后该聚酯大单体、功能单体与不饱和酸三元共聚制备得到的酯类聚羧酸减水剂，制备得到的酯类聚羧酸减水剂具有良好的和易性和减水率。
Ester polycarboxylic acid water reducer and preparation method thereof
一种酯类聚羧酸减水剂及其制备方法
YANG DIE (Autor:in) / DENG LEI (Autor:in) / CHEN WENHONG (Autor:in) / JIANG YU (Autor:in) / ZHANG BO (Autor:in) / ZHANG YUANBAO (Autor:in) / LYU CHANGWEI (Autor:in) / HUANG XIAOWEN (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
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