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A platform for research: civil engineering, architecture and urbanism
High-adaptability six-carbon polycarboxylic acid additive and preparation method thereof
The invention relates to the technical field of concrete admixtures, and particularly discloses a high-adaptability six-carbon polycarboxylic acid admixture and a preparation method thereof. The high-adaptability six-carbon polycarboxylic acid additive is prepared from the following raw materials in parts by mass: 150 to 200 parts of six-carbon macromonomer, 10 to 20 parts of functional monomer, 3 to 8 parts of ester monomer, 2 to 5 parts of silane coupling agent containing carbon-carbon double bond, 1 to 5 parts of chain transfer agent, 0.5 to 2 parts of redox system initiator, 5 to 10 parts of pH regulator and 200 to 300 parts of water. The six-carbon macromonomer is composed of ethylene glycol monovinyl polyethylene glycol ether and 4-hydroxybutyl vinyl polyoxyethylene ether according to the mass ratio of (2-5): 1; the functional monomer is composed of acrylic acid and acrylic acid-2-nitroethyl ester according to the mass ratio of (1-3): 1. The six-carbon polycarboxylic acid admixture obtained by the invention is relatively high in adaptability, and relatively excellent in water-reducing rate, slump retaining property, mud resistance and workability.
本申请涉及混凝土外加剂技术领域，具体公开了一种高适应性六碳聚羧酸外加剂及其制备方法。一种高适应性六碳聚羧酸外加剂，包括以下质量份的原料：六碳大单体150‑200份、功能单体10‑20份、酯类单体3‑8份、含碳碳双键的硅烷偶联剂2‑5份、链转移剂1‑5份、氧化还原体系引发剂0.5‑2份、pH调节剂5‑10份、水200‑300份；六碳大单体是由乙二醇单乙烯基聚乙二醇醚和4‑羟丁基乙烯基聚氧乙烯醚按照质量比（2‑5）：1组成；功能单体是由丙烯酸和丙烯酸‑2‑硝基乙酯按照质量比（1‑3）:1组成。本申请得到的六碳聚羧酸外加剂适应性较强，其减水率、保坍性、抗泥性及和易性均较为优异。
High-adaptability six-carbon polycarboxylic acid additive and preparation method thereof
The invention relates to the technical field of concrete admixtures, and particularly discloses a high-adaptability six-carbon polycarboxylic acid admixture and a preparation method thereof. The high-adaptability six-carbon polycarboxylic acid additive is prepared from the following raw materials in parts by mass: 150 to 200 parts of six-carbon macromonomer, 10 to 20 parts of functional monomer, 3 to 8 parts of ester monomer, 2 to 5 parts of silane coupling agent containing carbon-carbon double bond, 1 to 5 parts of chain transfer agent, 0.5 to 2 parts of redox system initiator, 5 to 10 parts of pH regulator and 200 to 300 parts of water. The six-carbon macromonomer is composed of ethylene glycol monovinyl polyethylene glycol ether and 4-hydroxybutyl vinyl polyoxyethylene ether according to the mass ratio of (2-5): 1; the functional monomer is composed of acrylic acid and acrylic acid-2-nitroethyl ester according to the mass ratio of (1-3): 1. The six-carbon polycarboxylic acid admixture obtained by the invention is relatively high in adaptability, and relatively excellent in water-reducing rate, slump retaining property, mud resistance and workability.
本申请涉及混凝土外加剂技术领域，具体公开了一种高适应性六碳聚羧酸外加剂及其制备方法。一种高适应性六碳聚羧酸外加剂，包括以下质量份的原料：六碳大单体150‑200份、功能单体10‑20份、酯类单体3‑8份、含碳碳双键的硅烷偶联剂2‑5份、链转移剂1‑5份、氧化还原体系引发剂0.5‑2份、pH调节剂5‑10份、水200‑300份；六碳大单体是由乙二醇单乙烯基聚乙二醇醚和4‑羟丁基乙烯基聚氧乙烯醚按照质量比（2‑5）：1组成；功能单体是由丙烯酸和丙烯酸‑2‑硝基乙酯按照质量比（1‑3）:1组成。本申请得到的六碳聚羧酸外加剂适应性较强，其减水率、保坍性、抗泥性及和易性均较为优异。
High-adaptability six-carbon polycarboxylic acid additive and preparation method thereof
高适应性六碳聚羧酸外加剂及其制备方法
YAN WEIMIN (author) / HUA LEI (author) / RAO WENSHUO (author) / DENG QIANZHAN (author)
2023-07-07
Patent
Electronic Resource
Chinese
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