Liquid cement grinding aid and preparation method thereof

[0024] A liquid cement grinding aid and a manufacturing method thereof, comprising the following components, by mass percentage:

[0025] High molecular polymer: 50%

[0026] Sulfuran: 5%

[0027] Propylene Glycol: 11%

[0028] Ammonium nitrate: 5%

[0029] Water: 40%

[0030] The preparation process of this cement grinding aid is as follows:

[0031] In the state of stirring, add p-aminobenzenesulfonic acid, propylene glycol, and ammonium nitrate to the water in sequence, and then add the high-molecular polymer until it is completely dissolved, and stir until the high-molecular polymer is completely dissolved. The preparation method is as follows, in terms of mass percentage:

[0032] Take 71.2% acetone in a four-necked flask, then add 0.5% azobisisobutyronitrile and 0.3% n-dodecanethiol respectively, start stirring, heat up to 60°C and reflux, add 2% styrene, 20 % allyl ether (n=25), 6% ethyl acrylate monomer; control the temperature at 60±1° C., and react for 3.5 hours.

[0034] A liquid cement grinding aid and a manufacturing method thereof, comprising the following components, by mass percentage:

[0035] High molecular polymer: 50%

[0036] Sulfuran: 3%

[0037] Propylene Glycol: 10%

[0038] Ammonium nitrate: 4%

[0039] Water: 33%

[0040] The preparation process of this cement grinding aid is as follows:

[0041] While stirring, add p-sulfanilic acid, propylene glycol, and ammonium nitrate to the water in sequence until they are completely dissolved, then add the high molecular polymer, and stir until they are completely dissolved.

[0042] The preparation method of macromolecular polymer is as follows, by mass percentage:

[0043] Take 69.1% acetone in a four-necked flask, then add 0.6% azobisisobutyronitrile and 0.3% n-dodecanethiol respectively, start stirring, raise the temperature to 58°C and reflux, add 2% styrene, 22% Allyl ether (n=28), 6% ethyl acrylate monomer; control temperature at 59±1°C, react for 4 hours. After the reac

[0045] A liquid cement grinding aid and a manufacturing method thereof, comprising the following components, by mass percentage:

[0046] High molecular polymer: 60%

[0047] Sulfuran: 5%

[0048] Propylene Glycol: 5%

[0049] Ammonium nitrate: 1%

[0050] Water: 29%

[0051] The preparation process of this cement grinding aid is as follows:

[0052] While stirring, add p-sulfanilic acid, propylene glycol, and ammonium nitrate to the water in sequence until they are completely dissolved, then add the high molecular polymer, and stir until they are completely dissolved.

[0053] The preparation method of macromolecular polymer is as follows, by mass percentage:

[0054] Take 69% acetone in a four-necked flask, then add 0.8% azobisisobutyronitrile and 0.2% n-dodecanethiol respectively, start stirring, raise the temperature to 58°C and reflux, add 2.2% styrene, 23.8% Allyl ether (n=28), 4% ethyl acrylate monomer; control temperature at 58±1° C., react for 5 hours. After the r