Grinding aid for cement and preparation method therefor
(22) 10.11.2021
(43) 16.03.2023
(57) The present invention belongs to the technical field of functional material preparation, and specifically relates to a grinding aid for cement and a preparation method therefor. The grinding aid comprises the components of a modified alcohol amine with a specific structure and a polycarboxylic acid polymer, wherein the mass ratio of the modified alcohol amine to the polycarboxylic acid polymer is (1-10):(40-49). When the grinding aid is used in cement, the early strength of the cement can be improved, the water consumption can be reduced, and the fluidity can be improved. According to the present invention, by using the combination of the modified alcohol amine with a specific structure and the polycarboxylic acid polymer in a specific ratio, a synergistic effect can be achieved, and the respective performance advantages are brought into full play.
(71) Jiahua Science & Technology Development (Shanghai) Ltd., Shanghai 201210 (CN)
(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), European (AM, AZ, BY, KG, KZ, RU, TJ, TM), Eurasian (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
