http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108911559-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-302 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-226 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-22 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-22 |
| filingDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108911559-B |
| titleOfInvention | Preparation method of modified sulfamate water reducer |
| abstract | The invention discloses a preparation method of a modified sulfamate water reducer, which comprises the following steps of (1) adding aminobenzenesulfonic acid or aminobenzenesulfonic acid salt, a phenolic compound, a mixed modifier and water into a reaction kettle, heating, stirring and dissolving, and then adding an alkaline regulator to regulate the pH value to 8-9; (2) continuously heating the material obtained in the step (1) to 70-80 ℃, slowly dripping the condensing agent, finishing dripping within 2 hours, simultaneously keeping the temperature at 70-80 ℃, heating to 80-90 ℃ after finishing dripping, and preserving heat; (3) adding a reaction terminator and water into the material obtained in the step (2), continuously heating to 80-90 ℃, and then preserving heat; (4) and (4) cooling the material obtained in the step (3) to room temperature, and adjusting the pH value to 7-8 to obtain the material. The invention introduces modifier, phenolic compound, condensing agent, aminobenzenesulfonic acid/aminobenzenesulfonic acid salt and other poly-condensation to form a network molecular structure with multi-branched chains, and water reducing agent molecules are three-dimensionally adsorbed on the surface of cement particles, so that the concrete has good dispersibility and dispersion retention capability. |
| priorityDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.