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High-performance polycarboxylate superplasticizer, preparation method thereof and concrete
The invention provides a high-performance polycarboxylate superplasticizer, a preparation method thereof and concrete. The polycarboxylate is prepared from the following components: ethylene glycol monovinyl polyethylene glycol ether macromonomer, unsaturated carboxylic acid micromonomer, alkali, an oxidizing agent, a reducing agent, a chain transfer agent and a catalyst. Compared with the prior art, the polycarboxylate superplasticizer is synthesized at normal temperature, the reaction time is short, the synthesis process is simple, the investment is low, and the economic benefit is relatively good. The polycarboxylate superplasticizer prepared according to the preparation method not only has a better water reducing effect, but also is excellent in collapse resistance.
本发明提供了一种高性能聚羧酸减水剂及其制备方法、一种混凝土，减水剂成分包括：乙二醇单乙烯基聚乙二醇醚大单体、不饱和羧酸小单体、碱、氧化剂、还原剂、链转移剂、催化剂。与现有技术相比，本发明实现了常温合成聚羧酸减水剂、反应时间短、合成工艺简单、投资少、具有较好的经济效益。按照本发明制备的聚羧酸减水剂不仅具有较好的减水效果，而且保塌性能优越。
High-performance polycarboxylate superplasticizer, preparation method thereof and concrete
The invention provides a high-performance polycarboxylate superplasticizer, a preparation method thereof and concrete. The polycarboxylate is prepared from the following components: ethylene glycol monovinyl polyethylene glycol ether macromonomer, unsaturated carboxylic acid micromonomer, alkali, an oxidizing agent, a reducing agent, a chain transfer agent and a catalyst. Compared with the prior art, the polycarboxylate superplasticizer is synthesized at normal temperature, the reaction time is short, the synthesis process is simple, the investment is low, and the economic benefit is relatively good. The polycarboxylate superplasticizer prepared according to the preparation method not only has a better water reducing effect, but also is excellent in collapse resistance.
本发明提供了一种高性能聚羧酸减水剂及其制备方法、一种混凝土，减水剂成分包括：乙二醇单乙烯基聚乙二醇醚大单体、不饱和羧酸小单体、碱、氧化剂、还原剂、链转移剂、催化剂。与现有技术相比，本发明实现了常温合成聚羧酸减水剂、反应时间短、合成工艺简单、投资少、具有较好的经济效益。按照本发明制备的聚羧酸减水剂不仅具有较好的减水效果，而且保塌性能优越。
High-performance polycarboxylate superplasticizer, preparation method thereof and concrete
一种高性能聚羧酸减水剂及其制备方法、一种混凝土
YAO JIE (author) / XU GENGYOU (author) / CHEN FENG (author) / ZENG JUN (author) / SI HONGZHEN (author) / SONG NANJING (author)
2020-11-27
Patent
Electronic Resource
Chinese
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