http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105463606-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-28 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B15-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F2-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-286 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-288 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F2-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 |
| filingDate | 2015-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105463606-B |
| titleOfInvention | A kind of high carboxyl content nano cellulose fiber and its preparation and application |
| abstract | The invention belongs to the technical field of biomass nanomaterials, and discloses a nanocellulose fiber with high carboxyl group content, its preparation and application. The preparation method is as follows: firstly, the fiber slurry is pretreated with sodium periodate at a temperature of 50°C to 60°C for 0.5h to 1.5h, and then sodium chlorite solution and acetic acid solution are added at a temperature of 30°C to 50°C. React for 1h-3h, then add TEMPO, NaClO 2 and NaClO, microwave heating to 55°C-65°C, react for 1-3h, and finally ultrasonically pulverize and freeze-dry to obtain the nanocellulose fibers with high carboxyl content. The present invention uses sodium periodate to oxidize the hydroxyl groups on the C2 and C3 positions of cellulose into aldehyde groups, then oxidizes the aldehyde groups into carboxyl groups through sodium chlorite, and selectively oxidizes the C6 positions through the TEMPO neutral oxidation system The hydroxyl group in the fiber is carboxyl, which greatly increases the total carboxyl content of the fiber, and the obtained product can be used for advanced treatment of wastewater in the middle stage of papermaking. |
| priorityDate | 2015-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.