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Formula and preparation method of early-strength polycarboxylate superplasticizer for prefabricated member
The invention discloses a formula of an early-strength polycarboxylate superplasticizer for a prefabricated member. The polycarboxylate superplasticizer is prepared from methyl allyl polyoxyethylene ether 2400, 50-70 parts of acrylic acid, 1-2 parts of mercaptopropionic acid, 5-7 parts of an oxidizing agent, 8-12 parts of polyethylene polyamine, 10-140 parts of sodium thiosulfate, 0.5-1.5 parts of an assistant reducing agent, 200-300 parts of soft water, 60-80 parts of 30% sodium hydroxide, 10-20 parts of an organic early-strength catalytic component, 10-20 parts of an inorganic early-strength catalytic component, 8-12 parts of a quaternary ammonium salt cationic monomer, 3-5 parts of N-[4-(sulfonamide)phenyl] acrylamide, 3-9 parts of 2-acrylamido-2-methallylsulfonic acid, 100-200 parts of deionized water, 2-4 parts of a neutralizer and 1-3 parts of a chain transfer agent. The invention has the technical effects of short setting time, high compressive strength and good early strength effect.
本发明公开了一种预制件用早强聚羧酸减水剂配方，甲基烯丙基聚氧乙烯醚2400、丙烯酸50～70份、巯基丙酸1～2份、氧化剂5～7份、多乙烯多胺8～12份、硫代硫酸钠10～140份、助还原剂0.5～1.5份、软水200～300份、30％的氢氧化钠60～80份、有机早强催化组分10～20份、无机早强催化组分10～20份、季铵盐类阳离子单体8～12份、N‑[4‑(磺酰胺)苯基]丙烯酰胺3～5份、2‑丙烯酰胺基‑2‑甲基丙烯磺酸3～9份、去离子水100～200份、中和剂2～4份和链转移剂1～3份。该发明的技术效果为凝固时间短、抗压强度高和早强效果好。
Formula and preparation method of early-strength polycarboxylate superplasticizer for prefabricated member
The invention discloses a formula of an early-strength polycarboxylate superplasticizer for a prefabricated member. The polycarboxylate superplasticizer is prepared from methyl allyl polyoxyethylene ether 2400, 50-70 parts of acrylic acid, 1-2 parts of mercaptopropionic acid, 5-7 parts of an oxidizing agent, 8-12 parts of polyethylene polyamine, 10-140 parts of sodium thiosulfate, 0.5-1.5 parts of an assistant reducing agent, 200-300 parts of soft water, 60-80 parts of 30% sodium hydroxide, 10-20 parts of an organic early-strength catalytic component, 10-20 parts of an inorganic early-strength catalytic component, 8-12 parts of a quaternary ammonium salt cationic monomer, 3-5 parts of N-[4-(sulfonamide)phenyl] acrylamide, 3-9 parts of 2-acrylamido-2-methallylsulfonic acid, 100-200 parts of deionized water, 2-4 parts of a neutralizer and 1-3 parts of a chain transfer agent. The invention has the technical effects of short setting time, high compressive strength and good early strength effect.
本发明公开了一种预制件用早强聚羧酸减水剂配方，甲基烯丙基聚氧乙烯醚2400、丙烯酸50～70份、巯基丙酸1～2份、氧化剂5～7份、多乙烯多胺8～12份、硫代硫酸钠10～140份、助还原剂0.5～1.5份、软水200～300份、30％的氢氧化钠60～80份、有机早强催化组分10～20份、无机早强催化组分10～20份、季铵盐类阳离子单体8～12份、N‑[4‑(磺酰胺)苯基]丙烯酰胺3～5份、2‑丙烯酰胺基‑2‑甲基丙烯磺酸3～9份、去离子水100～200份、中和剂2～4份和链转移剂1～3份。该发明的技术效果为凝固时间短、抗压强度高和早强效果好。
Formula and preparation method of early-strength polycarboxylate superplasticizer for prefabricated member
一种预制件用早强聚羧酸减水剂配方及制备方法
SHAO WEIXIANG (author) / YE XUEFEI (author) / WANG XIAOBING (author)
2021-11-23
Patent
Electronic Resource
Chinese
Preparation method of early-strength polycarboxylate superplasticizer for prefabricated member
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