http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113402742-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2363-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2200-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M2101-40 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G81-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-37 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M101-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G81-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K7-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-06 |
| filingDate | 2021-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113402742-B |
| titleOfInvention | Preparation method of lignin-based hydrophilic sizing agent and application of lignin-based hydrophilic sizing agent in epoxy resin composite material |
| abstract | The invention provides an application of lignin-based hydrophilic sizing agent in an epoxy resin composite material, which comprises the following steps: soaking carbon fibers in a sizing agent, performing molding qualitative by using a vacuum auxiliary molding device, and injecting epoxy resin uniformly mixed with a curing agent to obtain a carbon fiber reinforced epoxy resin composite material; the sizing agent is prepared by the following method: dissolving epoxy resin and ozonized lignin in an organic solvent, heating and stirring for reaction to obtain lignin-based epoxy resin, adding alcohol amine and carboxylic acid, heating and stirring for reaction, and adding a silane coupling agent to obtain a lignin-based hydrophilic sizing agent; the sizing agent has good adhesive property, and overcomes the defects of poor adhesive property between carbon fiber and epoxy resin and the like. The sizing agent disclosed by the invention takes water as a medium, avoids the use of an organic solvent, and is low in cost, environment-friendly and good in stability. The carbon fiber is pretreated by the pretreatment agent, so that the comprehensive performance of the carbon fiber reinforced epoxy resin composite material is remarkably improved. |
| priorityDate | 2021-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 96.