A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Efficient slump retaining agent and preparation method thereof
The invention discloses an efficient slump retaining agent, which is prepared from the following components in parts by weight: 250-600 parts of a monomer A, 11-40 parts of a monomer B, 20-60 parts ofa monomer C, 5-15 parts of a monomer D, 1-20 parts of an initiator, 0.8-10 parts of a composite molecular weight regulator, 0.5-4 parts of vitamin C sodium and 300-700 parts of water, wherein the monomer A is any one or a mixture of more of isopentenyl polyethylene glycol ether, hydroxybutyl vinyl polyethylene glycol ether and ethoxy vinyl polyethylene glycol ether, the monomer B is any one or amixture of two of acrylic acid, fumaric acid, itaconic acid and maleic anhydride, the monomer C is any one or a mixture of more of hydroxyethyl acrylate, hydroxypropyl acrylate, methacryloyloxy phosphate and hydroxyethyl methacrylate, the monomer D is diacrylamide dimethyl propanesulfonic acid or acrylamide, and the composite molecular weight regulator is mercaptoethanol. The components are subjected to a stirring reaction to obtain the product. The efficient slump retaining agent provided by the invention is good in slump retaining performance, small in performance fluctuation and excellent in adaptability, and can effectively meet the slump retaining requirements of concrete in various regions.
一种高效保坍剂，包括如下重量份组分：250‑600份单体A、11‑40份单体B、20‑60份单体C、5‑15份单体D、1‑20份引发剂、0.8‑10份复合分子量调节剂、0.5‑4份维C钠、300‑700份水，其中，单体A为异戊烯基聚乙二醇醚、羟丁基乙烯基聚乙二醇醚、乙氧基乙烯基聚乙二醇醚中的任一种或几种混合，单体B为丙烯酸、富马酸、衣康酸、马来酸酐中的任一种或两种混合，单体C为丙烯酸羟乙酯、丙烯酸羟丙酯、甲基丙烯酰氧磷酸酯、甲基丙烯酸羟乙酯中的任一种或几种混合，单体D为二丙烯酰胺二甲基丙磺酸或丙烯酰胺，复合分子调节剂为巯基乙醇。这些组分经搅拌反应制得产品。本发明提供的高效保坍剂保坍性能好、性能波动较小，适应性优，可有效满足各地区混凝土的保坍要求。
Efficient slump retaining agent and preparation method thereof
The invention discloses an efficient slump retaining agent, which is prepared from the following components in parts by weight: 250-600 parts of a monomer A, 11-40 parts of a monomer B, 20-60 parts ofa monomer C, 5-15 parts of a monomer D, 1-20 parts of an initiator, 0.8-10 parts of a composite molecular weight regulator, 0.5-4 parts of vitamin C sodium and 300-700 parts of water, wherein the monomer A is any one or a mixture of more of isopentenyl polyethylene glycol ether, hydroxybutyl vinyl polyethylene glycol ether and ethoxy vinyl polyethylene glycol ether, the monomer B is any one or amixture of two of acrylic acid, fumaric acid, itaconic acid and maleic anhydride, the monomer C is any one or a mixture of more of hydroxyethyl acrylate, hydroxypropyl acrylate, methacryloyloxy phosphate and hydroxyethyl methacrylate, the monomer D is diacrylamide dimethyl propanesulfonic acid or acrylamide, and the composite molecular weight regulator is mercaptoethanol. The components are subjected to a stirring reaction to obtain the product. The efficient slump retaining agent provided by the invention is good in slump retaining performance, small in performance fluctuation and excellent in adaptability, and can effectively meet the slump retaining requirements of concrete in various regions.
一种高效保坍剂，包括如下重量份组分：250‑600份单体A、11‑40份单体B、20‑60份单体C、5‑15份单体D、1‑20份引发剂、0.8‑10份复合分子量调节剂、0.5‑4份维C钠、300‑700份水，其中，单体A为异戊烯基聚乙二醇醚、羟丁基乙烯基聚乙二醇醚、乙氧基乙烯基聚乙二醇醚中的任一种或几种混合，单体B为丙烯酸、富马酸、衣康酸、马来酸酐中的任一种或两种混合，单体C为丙烯酸羟乙酯、丙烯酸羟丙酯、甲基丙烯酰氧磷酸酯、甲基丙烯酸羟乙酯中的任一种或几种混合，单体D为二丙烯酰胺二甲基丙磺酸或丙烯酰胺，复合分子调节剂为巯基乙醇。这些组分经搅拌反应制得产品。本发明提供的高效保坍剂保坍性能好、性能波动较小，适应性优，可有效满足各地区混凝土的保坍要求。
Efficient slump retaining agent and preparation method thereof
一种高效保坍剂及其制备方法
GAO YI (author) / PAN CHENGGONG (author) / JIE MINGZHOU (author) / WANG RUIYUE (author) / CHENG MINGSHEN (author)
2020-07-24
Patent
Electronic Resource
Chinese
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