http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113215675-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F1-10 |
| filingDate | 2021-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113215675-B |
| titleOfInvention | HB (A-M) modified boron nitride nanotube reinforced PVA fiber and preparation method thereof |
| abstract | The invention relates to an HB (A-M) modified boron nitride nanotube reinforced PVA fiber and a preparation method thereof, wherein the preparation method comprises the following steps: carrying out dry-wet spinning on PVA spinning solution containing HB (A-M) modified boron nitride nanotubes to prepare HB (A-M) modified boron nitride nanotube reinforced PVA fibers; HB (A-M) modified boron nitride nanotube is obtained by dissolving HB (A-M) in deionized water, adding hydroxylated BNNT into the solution and carrying out ultrasonic treatment; HB (A-M) is a hyperbranched polymer synthesized by taking AB as a monomer and taking di-hydroxyethylamine as a nuclear molecule, wherein AB is formed by reacting aspartic acid and dimethylolpropionic acid with the molar ratio of 1.0-1.2: 1.7-2.4; the content of PVA in the PVA spinning solution is 35-40 wt%, and the viscosity of the PVA spinning solution is 1500-2200 Pa.s; the titer of the prepared HB (A-M) modified boron nitride nanotube reinforced PVA fiber is 24.1-35.3 dtex, the breaking strength is 15.9-19.6 cN/dtex, and the elastic modulus is 376-389 cN/dtex. The invention effectively solves the problem of poor BNNT dispersibility, and prepares the HB (A-M) modified boron nitride nanotube reinforced PVA fiber with excellent performance. |
| priorityDate | 2021-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.