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Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention discloses a viscosity reduction type polycarboxylate superplasticizer and a preparation method thereof, and belongs to the technical field of building material admixtures. The superplasticizer is prepared from the following raw materials in parts by weight: 300 to 400 parts of unsaturated polyoxyethylene ether, 35 to 40 parts of 2-acetamido acrylic acid, 7 to 14 parts of sodium alpha-olefin sulfonate, 3 to 5 parts of vinyl phosphoric acid, 2.5 to 2.8 parts of a chain transfer agent, 4 to 6 parts of an oxidizing agent, 1 to 1.5 parts of a reducing agent, 2 to 8 parts of a NaOH solution and 300 to 400 parts of deionized water. The superplasticizer can effectively reduce the viscosity of concrete and improve the workability of the concrete under the doping amount level of 0.05%, has excellent comprehensive performance, is convenient to store and transport as a water solvent, has stable performance, simple preparation process and low cost, is suitable for practical popularization and application, and has wide economic and social benefits.
本发明公开一种降粘型聚羧酸减水剂及其制备方法，属于建筑材料外加剂技术领域。本发明减水剂包括以下重量份的原料制备得到：不饱和聚氧乙烯醚300‑400份、2‑乙酰氨基丙烯酸35‑40份、α‑烯基磺酸钠7‑14份、乙烯基磷酸3‑5份、链转移剂2.5‑2.8份、氧化剂4‑6份、还原剂1‑1.5份、NaOH溶液2‑8份、去离子水300‑400份。本发明减水剂在0.05％的掺量水平下，有效降低混凝土粘度，提高混凝土和易性，综合性能优异，且作为水溶剂，方便贮存于运输，性能稳定，制备工艺简单，成本低廉，适合实际推广和应用，具有广泛的经济效益和社会效益。
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
The invention discloses a viscosity reduction type polycarboxylate superplasticizer and a preparation method thereof, and belongs to the technical field of building material admixtures. The superplasticizer is prepared from the following raw materials in parts by weight: 300 to 400 parts of unsaturated polyoxyethylene ether, 35 to 40 parts of 2-acetamido acrylic acid, 7 to 14 parts of sodium alpha-olefin sulfonate, 3 to 5 parts of vinyl phosphoric acid, 2.5 to 2.8 parts of a chain transfer agent, 4 to 6 parts of an oxidizing agent, 1 to 1.5 parts of a reducing agent, 2 to 8 parts of a NaOH solution and 300 to 400 parts of deionized water. The superplasticizer can effectively reduce the viscosity of concrete and improve the workability of the concrete under the doping amount level of 0.05%, has excellent comprehensive performance, is convenient to store and transport as a water solvent, has stable performance, simple preparation process and low cost, is suitable for practical popularization and application, and has wide economic and social benefits.
本发明公开一种降粘型聚羧酸减水剂及其制备方法，属于建筑材料外加剂技术领域。本发明减水剂包括以下重量份的原料制备得到：不饱和聚氧乙烯醚300‑400份、2‑乙酰氨基丙烯酸35‑40份、α‑烯基磺酸钠7‑14份、乙烯基磷酸3‑5份、链转移剂2.5‑2.8份、氧化剂4‑6份、还原剂1‑1.5份、NaOH溶液2‑8份、去离子水300‑400份。本发明减水剂在0.05％的掺量水平下，有效降低混凝土粘度，提高混凝土和易性，综合性能优异，且作为水溶剂，方便贮存于运输，性能稳定，制备工艺简单，成本低廉，适合实际推广和应用，具有广泛的经济效益和社会效益。
Viscosity reduction type polycarboxylate superplasticizer and preparation method thereof
一种降粘型聚羧酸减水剂及其制备方法
WU CHUNJIANG (author) / CHEN FENG (author) / LU JIANG (author) / ZHANG HUI (author) / SI HONGZHEN (author) / SONG NANJING (author) / LYU XIAO (author) / LI YAO (author) / LIU XIUMIN (author) / GUO XIANGJIN (author)
2021-05-14
Patent
Electronic Resource
Chinese
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