http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110790888-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4854 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6529 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6685 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10 |
| filingDate | 2019-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110790888-B |
| titleOfInvention | High-strength room-temperature self-repairing polyurethane elastomer based on multiple dynamic reversible effects and preparation and application thereof |
| abstract | The invention belongs to the technical field of self-repairing elastomer materials, and discloses a high-strength room-temperature self-repairing polyurethane elastomer based on multiple dynamic reversible effects, and preparation and application thereof. The method comprises the following steps: 1) reacting dihydric alcohol with diisocyanate under the action of a catalyst to obtain a prepolymer; the dihydric alcohol is more than one of polyether dihydric alcohol and polysiloxane dihydric alcohol; 2) reacting a dicarboxylic acid chain extender with the prepolymer to obtain an oligomer; adding diamine chain extender, continuing the reaction, and performing subsequent treatment to obtain polyurethane; the dicarboxylic acid chain extender and the diamine chain extender are collectively called as chain extenders, and the chain extenders contain disulfide bonds and pyridine groups; 3) in an organic solvent, reacting polyurethane with a metal salt crosslinking agent, and removing the solvent to obtain the high-strength room-temperature self-repairing polyurethane elastomer. The method disclosed by the invention is simple and mild in condition, and the prepared polyurethane elastomer is excellent in mechanical property and high in self-repairing efficiency, and is applied to flexible substrate materials, wearable equipment and intelligent protective coatings. |
| priorityDate | 2019-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.