http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113373539-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2201-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B16-0641 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F116-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B16-06 |
| filingDate | 2021-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113373539-B |
| titleOfInvention | A kind of preparation method and application of high-strength and high-modulus polyvinyl alcohol fiber |
| abstract | The invention relates to a preparation method and application of high-strength and high-modulus polyvinyl alcohol fibers. The polyvinyl alcohol/dodecane is added to a dissolving kettle containing DMF and water, and the temperature is raised in stages to swell, and CO is then introduced into the dissolving kettle. 2 The gas forms a certain pressure until the polyvinyl alcohol/dodecane is completely dissolved, and then CO2 gas is discharged within a certain period of time to obtain the polyvinyl alcohol spinning solution; then the polyvinyl alcohol spinning solution is subjected to dry and wet spinning High-strength and high-modulus polyvinyl alcohol fibers are prepared; high-strength and high-modulus polyvinyl alcohol fibers are mixed into concrete for preparing fiber-reinforced concrete, and the fiber-reinforced concrete is soaked in water. 98.2 to 99.2% and 96.2 to 98.2%. The high-strength and high-modulus polyvinyl alcohol fibers prepared by the invention have excellent breaking strength and elastic modulus, and have good water resistance, which can effectively reduce the occurrence of concrete cracks and prevent the further expansion of concrete cracks that have already occurred, and has obvious reinforcing effect. |
| 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: 39.