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Dicarboxyl sulfonic polycarboxylate superplasticizer and preparation method thereof
A dicarboxyl sulfonic polycarboxylate superplasticizer is prepared from, by weight, 32 to 48 parts of a monomer A, 2 to 10 parts of a monomer B, 1 to 6 parts of a monomer C, 0.1 to 0.8 part of sodiummethallyl sulfonate, 0.1 to 0.3 part of a chain transfer agent, 0.4 to 1 part of an initiator and 50 to 60 parts of water. According to the dicarboxyl sulfonic polycarboxylate superplasticizer disclosed by the invention, a part of anionic strong polar groups containing -C=C- double bonds are added to a main chain to serve as anchoring groups, so that the adsorption capacity of the superplasticizeris effectively improved, the dispersing performance and rheological property of concrete can be effectively improved, and the construction requirements are met.
一种双羧基磺酸基聚羧酸减水剂，包括如下重量份组分：32‑48份单体A、2‑10份单体B、1‑6份单体C、0.1‑0.8份甲基丙烯磺酸钠、0.1‑0.3份链转移剂、0.4‑1份引发剂、50‑60份水。本发明双羧基磺酸基聚羧酸减水剂，通过在主链上加入部分含有‑C＝C‑双键的带有阴离子强极性基团，作为锚定基团，有效提高了减水剂的吸附能力，可有效提高混凝土的分散性能和流变性能，满足施工需求。
Dicarboxyl sulfonic polycarboxylate superplasticizer and preparation method thereof
A dicarboxyl sulfonic polycarboxylate superplasticizer is prepared from, by weight, 32 to 48 parts of a monomer A, 2 to 10 parts of a monomer B, 1 to 6 parts of a monomer C, 0.1 to 0.8 part of sodiummethallyl sulfonate, 0.1 to 0.3 part of a chain transfer agent, 0.4 to 1 part of an initiator and 50 to 60 parts of water. According to the dicarboxyl sulfonic polycarboxylate superplasticizer disclosed by the invention, a part of anionic strong polar groups containing -C=C- double bonds are added to a main chain to serve as anchoring groups, so that the adsorption capacity of the superplasticizeris effectively improved, the dispersing performance and rheological property of concrete can be effectively improved, and the construction requirements are met.
一种双羧基磺酸基聚羧酸减水剂，包括如下重量份组分：32‑48份单体A、2‑10份单体B、1‑6份单体C、0.1‑0.8份甲基丙烯磺酸钠、0.1‑0.3份链转移剂、0.4‑1份引发剂、50‑60份水。本发明双羧基磺酸基聚羧酸减水剂，通过在主链上加入部分含有‑C＝C‑双键的带有阴离子强极性基团，作为锚定基团，有效提高了减水剂的吸附能力，可有效提高混凝土的分散性能和流变性能，满足施工需求。
Dicarboxyl sulfonic polycarboxylate superplasticizer and preparation method thereof
一种双羧基磺酸基聚羧酸减水剂及其制备方法
LI LIANGYING (author) / PAN CHENGGONG (author) / YI SHUCHENG (author) / ZHANG DAN (author) / LI XIAOLIN (author)
2020-08-28
Patent
Electronic Resource
Chinese
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