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A platform for research: civil engineering, architecture and urbanism
Hyperbranched polycarboxylic acid water reducer and preparation method thereof
The invention relates to the technical field of concrete water reducing agents, in particular to a hyperbranched polycarboxylate-type water reducing agent and a preparation method thereof. The hyperbranched acrylic resin is obtained by copolymerizing unsaturated carboxylic acid, fluorine-containing acrylate and a hyperbranched monomer. The water-reducing agent has the characteristics of high water-reducing rate, good dispersity and the like, contains fluorine elements, can enable cement particles to have better dispersity, can effectively prevent the agglomeration phenomenon of the cement particles, and is good in workability and insensitive to the mixing amount; the preparation method is simple to operate, green and pollution-free.
本发明涉及混凝土减水剂技术领域，特别涉及一种超支化聚羧酸系减水剂及其制备方法。不饱和羧酸、含氟丙烯酸酯和超支化型单体进行共聚得到。含有氟元素，减水率高、分散性好等特点，能使水泥颗粒具有更好的分散性，可以有效防止水泥颗粒的团聚现象，和易性好，对掺量不敏感；制备方法操作简单、绿色无污染。
Hyperbranched polycarboxylic acid water reducer and preparation method thereof
The invention relates to the technical field of concrete water reducing agents, in particular to a hyperbranched polycarboxylate-type water reducing agent and a preparation method thereof. The hyperbranched acrylic resin is obtained by copolymerizing unsaturated carboxylic acid, fluorine-containing acrylate and a hyperbranched monomer. The water-reducing agent has the characteristics of high water-reducing rate, good dispersity and the like, contains fluorine elements, can enable cement particles to have better dispersity, can effectively prevent the agglomeration phenomenon of the cement particles, and is good in workability and insensitive to the mixing amount; the preparation method is simple to operate, green and pollution-free.
本发明涉及混凝土减水剂技术领域，特别涉及一种超支化聚羧酸系减水剂及其制备方法。不饱和羧酸、含氟丙烯酸酯和超支化型单体进行共聚得到。含有氟元素，减水率高、分散性好等特点，能使水泥颗粒具有更好的分散性，可以有效防止水泥颗粒的团聚现象，和易性好，对掺量不敏感；制备方法操作简单、绿色无污染。
Hyperbranched polycarboxylic acid water reducer and preparation method thereof
一种超支化聚羧酸系减水剂及其制备方法
HUANG LIJUN (author) / WANG RUOCHEN (author) / HUANG QING (author) / ZHOU GUANGJUN (author) / MENG XIANGRUI (author)
2022-07-05
Patent
Electronic Resource
Chinese
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