http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104693477-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate | 2015-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104693477-B |
| titleOfInvention | A kind of preparation method of crosslinked polyimide aeroge |
| abstract | The invention belongs to aerogel material technical field, and in particular to a kind of preparation method of crosslinked polyimide aeroge.The method that the present invention uses collosol and gel, acid anhydrides and the diamines containing multiple benzene ring structures is used to prepare polyamic acid for presoma, crosslinking agent formation cross-linking type polyamic acid structure is added again, wet gel is formed through imidization, with reference to supercritical drying process, lightweight, high-specific surface area, the crosslinked polyimide aerogel material with good thermal stability are prepared.Compared with prior art, the features such as present invention is easy to get with raw material, course of reaction is simple, resulting material has nanometer scale three-dimensional net structure, and density is less than 130mg/cm 3 , specific surface area is up to 500mg/cm 3 More than, solve the features such as conventional organic aerogel density is high, specific surface area is low, heat endurance is poor. |
| priorityDate | 2015-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.