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