http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112980201-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2383-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-1037 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2256 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L83-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-1037 |
| filingDate | 2021-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112980201-B |
| titleOfInvention | A kind of phosphonic acid modified graphene oxide cross-linked polybenzimidazole-polysiloxane block copolymer composite material |
| abstract | The invention also provides a polybenzimidazole-polysiloxane block copolymer graft-modified graphene oxide composite material and a preparation method and application thereof. In the composite material, the phosphonic acid-modified graphene oxide is introduced into the polybenzimidazole-polysiloxane block copolymer in the form of covalent bonds, and the introduction of a small amount of phosphonic acid-modified graphene oxide makes phosphoric acid. The doping level is further reduced to below 10, while the proton conductivity is significantly improved, reaching 8.31×10 ‑2 S/cm, the transverse swelling rate after immersion in phosphoric acid reaches a minimum of 8.7%, and the tensile strength exceeds 7.5MPa. The modification of the phosphonic acid-modified graphene oxide in the composite material of the present invention improves the compatibility and binding force with the polybenzimidazole-polysiloxane block copolymer, and not only improves the ionic conductivity of the composite material , which further reduced the phosphoric acid doping level (ADL) of the composites, also improved the anti-swelling properties and mechanical properties of the composites, and optimized the comprehensive properties of the composites. |
| priorityDate | 2021-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.