Perfluoropolyether (PFPE) is a type of liquid lubricant that has been used in the aerospace industry for over 30 years. The main properties of PFPE are being temperature resistant between −58 °C (215 K) and 257 °C (530 K) (depending on specific composites), having very low outgassing compared to other fluids (vapour pressure of 6×10−8 Torr) and having a dielectric strength of around 15.7 MV/m. Perfluoropolyether consists of a polymer chain in which monomers consisting of perfluoro-alkyl groups are joined by ether linkages. The bonds between carbon and oxygen or fluorine are strong.
| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:label
| - Perfluoropolietere (it)
- パーフルオロポリエーテル (ja)
- Perfluoropolyether (en)
|
| rdfs:comment
| - パーフルオロポリエーテル（英: Perfluoropolyether、PFPE）は、30年以上にわたり航空宇宙産業で使用されている液体潤滑油の一種である。PFPEの主な特性は、215〜530 K(特定の組成物に応じて)の間で耐熱性があり、他の流体(6×10−8 Torrの蒸気圧)と比較して非常に低い気体除去能を有し、約15.7 MV/mの誘電体強度を有する。 PFPEの熱的・化学的安定性と230℃の気液平衡は、適切な組成物と混合することで、気相はんだ付け技術に適した候補となる。 (ja)
- Perfluoropolyether (PFPE) is a type of liquid lubricant that has been used in the aerospace industry for over 30 years. The main properties of PFPE are being temperature resistant between −58 °C (215 K) and 257 °C (530 K) (depending on specific composites), having very low outgassing compared to other fluids (vapour pressure of 6×10−8 Torr) and having a dielectric strength of around 15.7 MV/m. Perfluoropolyether consists of a polymer chain in which monomers consisting of perfluoro-alkyl groups are joined by ether linkages. The bonds between carbon and oxygen or fluorine are strong. (en)
- I perfluoropolieteri (PFPE) sono polimeri con struttura eterea contenenti fluoro, carbonio e ossigeno. La prima specifica militare sui PFPE risale al Novembre 1962 (USAF). In particolare si richiedeva la formulazione di un lubrificante non infiammabile in atmosfera di ossigeno liquido e gassoso. Storicamente i primi prodotti di questa famiglia furono il ®(Dupont) ed il Fomblin® (Montedison).Nuovi PFPE sono commercializzati come ® (asahi), ® (Hoechst) ® (Unimatec), ® (Daikin)e ® (Solvay). Fomblin - Galden : -[O-CF2]n-[O-CF2-CF2]m- -[O-CF2]n-[O-CF2-CF(CF3)]m- Krytox - Aflunox : -[O-CF2-CF(CF3)]n- (it)
|
| foaf:name
| |
| name
| |
| dct:subject
| |
| Wikipage page ID
| |
| Wikipage revision ID
| |
| Link from a Wikipage to another Wikipage
| |
| sameAs
| |
| dbp:wikiPageUsesTemplate
| |
| OtherNames
| |
| has abstract
| - Perfluoropolyether (PFPE) is a type of liquid lubricant that has been used in the aerospace industry for over 30 years. The main properties of PFPE are being temperature resistant between −58 °C (215 K) and 257 °C (530 K) (depending on specific composites), having very low outgassing compared to other fluids (vapour pressure of 6×10−8 Torr) and having a dielectric strength of around 15.7 MV/m. Perfluoropolyether consists of a polymer chain in which monomers consisting of perfluoro-alkyl groups are joined by ether linkages. The bonds between carbon and oxygen or fluorine are strong. The thermal and chemical stability of PFPE along with a vapor–liquid equilibrium of 230 °C when mixed with the right composites make it a suitable candidate for vapor phase soldering technologies. (en)
- I perfluoropolieteri (PFPE) sono polimeri con struttura eterea contenenti fluoro, carbonio e ossigeno. La prima specifica militare sui PFPE risale al Novembre 1962 (USAF). In particolare si richiedeva la formulazione di un lubrificante non infiammabile in atmosfera di ossigeno liquido e gassoso. Storicamente i primi prodotti di questa famiglia furono il ®(Dupont) ed il Fomblin® (Montedison).Nuovi PFPE sono commercializzati come ® (asahi), ® (Hoechst) ® (Unimatec), ® (Daikin)e ® (Solvay). Fomblin - Galden : -[O-CF2]n-[O-CF2-CF2]m- -[O-CF2]n-[O-CF2-CF(CF3)]m- Si ottengono tramite fotopolimerizzazione ossidativa a partire da tetrafluoroetilene o perfluoropropene. I ponti eterei sono distribuiti in modo casuale all'interno della struttura. Krytox - Aflunox : -[O-CF2-CF(CF3)]n- Si ottengono a partire da tramite polimerizzazione anionica fluoruro catalizzata. La disposizione dei ponti eterei all'interno del polimero è regolare. Demnum : -[O-CF2-CF2-CF2)]n- Si ottiene a partire dal tramite polimerizzazione anionica fluoruro catalizzata e successiva perfluorurazione. L'ossetano di partenza si ricava dalla reazione fra tetrafluoroetilene e formaldeide. Afluid : CF(O-CF2-CF2)x,y,z(O-CF2-CH2-X)x,y,z Si ottiene tramite a partire dall'omologo idrogenato. Possiede una struttura ramificata e regolare. (it)
- パーフルオロポリエーテル（英: Perfluoropolyether、PFPE）は、30年以上にわたり航空宇宙産業で使用されている液体潤滑油の一種である。PFPEの主な特性は、215〜530 K(特定の組成物に応じて)の間で耐熱性があり、他の流体(6×10−8 Torrの蒸気圧)と比較して非常に低い気体除去能を有し、約15.7 MV/mの誘電体強度を有する。 PFPEの熱的・化学的安定性と230℃の気液平衡は、適切な組成物と混合することで、気相はんだ付け技術に適した候補となる。 (ja)
|
| prov:wasDerivedFrom
| |
| page length (characters) of wiki page
| |
| alternative name
| |
| foaf:isPrimaryTopicOf
| |
| is Link from a Wikipage to another Wikipage
of | |
| is Wikipage redirect
of | |
| is foaf:primaryTopic
of | |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)