1 results about "Cement grinding" patented technology

The invention discloses a liquid cement grinding aid and a preparation method thereof. The liquid cement grinding aid is prepared by dissolving various components in water and comprises, by mass, 50-60% of a high-molecular polymer, 1-5% of p-aminobenzenesulfonic acid, 5-10% of propylene glycol, 1-5% of ammonium nitrate and the balance water. The high-molecular polymer adopts acetone as a solvent and is prepared after radical polymerization of a polymerization monomer, an initiator and a chain transfer agent and reduced pressure distillation. The grinding aid has a significant grinding assisting effect, the mill output is effectively increased, the specific surface area of cement is increased, and meanwhile the cement can be improved.