http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109651812-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-011 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-14 |
| filingDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109651812-B |
| titleOfInvention | Silicon-containing atomic oxygen resistant polyimide film composition and preparation method thereof |
| abstract | The invention provides a silicon-containing atomic oxygen resistant polyimide film material and a preparation method thereof, wherein the film material comprises a substrate film layer, a transition layer and a surface protective layer which are sequentially arranged; the substrate film layer comprises a modified polyimide matrix and nano SiO 2 A filler; the transition layer is of an interpenetrating network structure of Si-O-Si and polyimide; the surface protective layer is a pure silicon dioxide layer. The atomic oxygen resistant polyimide film prepared by the invention is light yellow, has the thickness of 50-80 mu m, the tensile strength of more than or equal to 200MPa, the insulating strength of more than or equal to 230V/mu m and meets the requirement that the total atomic oxygen accumulation is 7.83 multiplied by 10 22 atom/cm 2 The mass loss rate after the action of the coating (the near-earth orbit runs for 10 years) is less than or equal to 10 percent, the change of the optical property is less than or equal to 10 percent, and the coating has no obvious crack, stable optical property and good mechanical property after 100 high-low temperature thermal cycle tests at the temperature of between 100 ℃ below zero and 100 ℃. |
| priorityDate | 2018-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.