Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylate superplasticizer formula and preparation method thereof
The invention discloses a formula of a polycarboxylate superplasticizer, which mainly comprises following raw material components in parts by mass: 360-370 parts of ether macromonomers, 20-40 parts ofacrylic acid, 1-3 parts of diacrylate, 1-3 parts of methylene bisacrylamide, 2-4 parts of an oxidant, 0.5-1.5 parts of a reducing agent, 1-3 parts of a chain transfer agent, 0.025-0.075 part of a co-reducing agent, 100-300 parts of a cocatalyst, 30-50 parts of a 30% sodium hydroxide aqueous solution, 100-300 parts of soft water, 100-300 parts of water, 25-35 parts of styrene, 20-40 parts of unsaturated anhydride, 10-20 parts of butyl acetate, 100-200 parts of absolute ethyl alcohol, 50-90 parts of n-heptane, 2-4 parts of an initiator, polyethylene glycol and deionized water. The technical effects are that cement is prevented from being rapidly adsorbed, the retentivity is high, and the slump retaining performance and workability are high.
本发明公开了一种聚羧酸减水剂配方，按质量份数计，其原料组分主要包括：醚类大单体360～370份、丙烯酸20～40份、二丙烯酸酯1～3份、亚甲基双丙烯酰胺1～3份、氧化剂2～4份、还原剂0.5～1.5份、链转移剂1～3份、助还原剂0.025～0.075份、助催化剂100～300份、30％的氢氧化钠水溶液30～50份、软水100～300份、水100～300份、苯乙烯25～35份、不饱和酸酐20～40份、乙酸丁酯10～20份、无水乙醇100～200份、正庚烷50～90份、引发剂2～4份、聚乙二醇和去离子水。该发明的技术效果为防止了水泥被快速吸附、保持性高、保坍性能与和易性较高。
Polycarboxylate superplasticizer formula and preparation method thereof
The invention discloses a formula of a polycarboxylate superplasticizer, which mainly comprises following raw material components in parts by mass: 360-370 parts of ether macromonomers, 20-40 parts ofacrylic acid, 1-3 parts of diacrylate, 1-3 parts of methylene bisacrylamide, 2-4 parts of an oxidant, 0.5-1.5 parts of a reducing agent, 1-3 parts of a chain transfer agent, 0.025-0.075 part of a co-reducing agent, 100-300 parts of a cocatalyst, 30-50 parts of a 30% sodium hydroxide aqueous solution, 100-300 parts of soft water, 100-300 parts of water, 25-35 parts of styrene, 20-40 parts of unsaturated anhydride, 10-20 parts of butyl acetate, 100-200 parts of absolute ethyl alcohol, 50-90 parts of n-heptane, 2-4 parts of an initiator, polyethylene glycol and deionized water. The technical effects are that cement is prevented from being rapidly adsorbed, the retentivity is high, and the slump retaining performance and workability are high.
本发明公开了一种聚羧酸减水剂配方，按质量份数计，其原料组分主要包括：醚类大单体360～370份、丙烯酸20～40份、二丙烯酸酯1～3份、亚甲基双丙烯酰胺1～3份、氧化剂2～4份、还原剂0.5～1.5份、链转移剂1～3份、助还原剂0.025～0.075份、助催化剂100～300份、30％的氢氧化钠水溶液30～50份、软水100～300份、水100～300份、苯乙烯25～35份、不饱和酸酐20～40份、乙酸丁酯10～20份、无水乙醇100～200份、正庚烷50～90份、引发剂2～4份、聚乙二醇和去离子水。该发明的技术效果为防止了水泥被快速吸附、保持性高、保坍性能与和易性较高。
Polycarboxylate superplasticizer formula and preparation method thereof
一种聚羧酸减水剂配方及制备方法
SHAO WEIXIANG (Autor:in) / YE XUEFEI (Autor:in) / WANG XIAOBING (Autor:in)
25.12.2020
Patent
Elektronische Ressource
Chinesisch
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