http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104177555-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-467 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-493 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-10 |
| filingDate | 2014-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104177555-B |
| titleOfInvention | Polymer latex for cement-base material oil absorption and expansion and preparation method thereof |
| abstract | The invention belongs to the technical field of well-cementation cement paste materials, and relates to a polymer latex for cement-base material oil absorption and expansion and a preparation method thereof. The polymer latex comprises a butadiene-styrene latex mainly composed of butadiene and styrene, an acrylate latex composed of acrylate monomer, and an acetate emulsion composed of vinyl acetate monomer. When the polymer latex is used in a well-cementation cement paste system, after the cured cement sheath cracks, the film formed by the polymer latex absorbs oil gas leaked from the crack and then expands, so that the hardened cement generates volume expansion, thereby achieving the effect of preventing the oil gas from leakage along the crack; and the oil absorptivity for diesel, gasoline and the like is up to 200-5000%. After the latex is added into the cement paste, the solid doping amount of the polymer relative to the cement is 2-50 wt%, and the hardened cement for oil absorption and expansion achieves the microstrain of 500-10000. Meanwhile, the polymer latex can obviously improve the toughness of the hardened cement and reduce the cracking risk of the cement sheath. |
| priorityDate | 2014-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 142.