Polyetherimide, kapa PEI, ke polymer e sebetsang hantle haholo ea thermoplastic e tsebahalang ka thepa ea eona e ikhethang ea mochini, mocheso le motlakase. Ke polyimide ea matla a holimo, e thata-thata e nkhang hamonate e nang le botsitso bo botle ba mocheso. Ka tlase ke tse ling tsa lintlha tsa bohlokoa tsa PEI:
Kakaretso Lethathamo la Lintho tsa Bohlokoa tsaPolyetherimide (PEI)
| Thepa | Lintlha |
|---|---|
| Mocheso oa Phetoho ea Khalase (Tg) | ~217°C (423°F) |
| Mocheso o Fetohang oa Mocheso (HDT) | ~215–220°C (419–428°F) |
| Matla a tšepe | 80–100 MPa (e fapana ho ea ka kereiti) |
| Flexural Matla | E phahameng, e loketseng likarolo tsa sebopeho |
| Impact Resistance | E itekanetseng |
| Insulation ea Motlakase | E babatsehang, matla a phahameng a dielectric |
| Khanyetso ea Lik'hemik'hale | E hanyetsana le li-acids, bases, oli, le solvents |
| Ho hanyetsa Lelakabe | Ho itšehla thajana, tekanyo ea UL 94 V-0 |
| Khanyetso ea UV | E ntle, empa e ka ba mosehla ha nako e ntse e feta ntle le li-stabilizer tsa UV |
| Ponaletso | Phaello e phahameng, hangata e fetang 80% ea phetiso ea leseli |
| Biocompatibility | E loketse likopo tsa bongaka, FDA e lumellana |
1. Thermal Properties
•Ho hanyetsa Mocheso:
PEI e na le mocheso o tsotehang oa ho kheloha mocheso (HDT) pakeng tsa 215 ° C le 220 ° C (419 ° F-428 ° F), e lumellang ho mamella mocheso o phahameng ntle le ho senyeha ho hoholo. Sena se etsa hore e be se loketseng bakeng sa lits'ebetso tse hlokang ho hanyetsa mocheso o phahameng, joalo ka liindasteri tsa likoloi le tsa sefofane.
E boloka matla le botsitso ba dimensional esita le ka mocheso o phahameng.
•Mocheso oa Phetoho ea Khalase (Tg):
Ka Tg e ka bang 217 ° C (423 ° F), PEI e boloka botšepehi ba eona ba sebopeho esita le lithempereichara tse ka holimo ho mefuta e tloaelehileng ea ho sebetsa ea li-plastiki tse ngata.
•Tlase Coefficient of Thermal Expansion (CTE):
PEI e na le CTE e tlase haholo, ho bolelang hore e na le phetoho e nyane haholo ha mocheso o ntse o fetoha, e etsa hore e tsitse le ho tšepahala bakeng sa likarolo tse nepahetseng.
2. Thepa ea Mechini
•Matla a Phahameng le ho Tiea:
PEI e fana ka lisebelisoa tse ikhethang tsa mochini, joalo ka matla a holimo, matla a tenyetsehang, le ho tiea, tse lulang li tiile le ha mocheso o le holimo. Sena se etsa hore e tšoanelehe bakeng sa likarolo tsa meralo libakeng tse hlokang.
Matla a eona a thata a atisa ho tloha ho 80 ho isa ho 100 MPa, ho itšetlehile ka kereiti.
•Impact Resistance:
Le ha PEI e le matla ka boqhetseke, e na le ts'ebetso e itekanetseng ea ho hanyetsa ha e bapisoa le li-thermoplastics tse ling tsa boenjiniere. E khona ho sebetsana le meroalo e meholo empa e tloaetse ho robeha ha brittle tlas'a maemo a itseng.
•Excellent Dimensional Stability:
Likarolo tsa PEI li bonts'a botsitso bo botle tlasa meroalo ea mochini, e e etsa hore e tšoanelehe bakeng sa lits'ebetso tse mamellang ka thata joalo ka likere tse nepahetseng, li-bearings le likhokahano tsa motlakase.
3. Thepa ea Motlakase
•Insulation e ntle ea Motlakase:
PEI ke insulator e ntle ea motlakase, e fanang ka matla a phahameng a dielectric le conductivity e tlase ea motlakase. Sena se etsa hore e be se loketseng bakeng sa lits'ebetso tsa motlakase le tsa elektroniki, joalo ka liboto tsa potoloho, lihokelo le li-insulator.
•Tahlehelo e Tlase ea Dielectric:
E bonts'a tahlehelo e tlase ea dielectric, e etsa hore e tšoanelehe bakeng sa lits'ebetso tsa motlakase tse phahameng haholo.
4. Khanyetso ea lik'hemik'hale
•Ho hanyetsa lik'hemik'hale tse ntle:
PEI e hanela mefuta e mengata e fapaneng ea lik'hemik'hale, ho kenyeletsoa li-acids, li-bases, oli le solvents. Leha ho le joalo, e ka 'na ea e-ba kotsing ea li-acids tse matla kapa li-bases ka mocheso o phahameng.
E sebetsa hantle libakeng tse thata, e etsa hore e tšoanelehe bakeng sa lits'ebetso tsa likarolo tsa makoloi, sefofane le tsa bongaka.
•E sa sebetseng:
Ho se sebetse hape ha PEI le biocompatibility ho etsa hore e tšoanele libaka tse sa ameheng ho ama batho, joalo ka liindasteri tsa meriana le tsa ho lokisa lijo.
5. Thepa ea Mechini ka Mocheso o Tlaase
•Ts'ebetso e Ntle ea Mocheso o Tlase:
PEI e boloka matla a eona a mochini le botsitso ba sebopeho leha e le maemong a mocheso o tlase, e etsa hore e tšoanelehe bakeng sa lits'ebetso tse maemong a tlase ho zero ntle le ho qhekella kapa ho lahleheloa ke botsitso.
6. Thepa ea Optical
•Ponaletso:
E 'ngoe ea likarolo tse hlokomelehang tsa PEI ke ponaletso ea eona, e thusang lits'ebetsong tsa optical joalo ka lilense, li-viewports, le lisebelisoa tsa optical moo ponahalo e hlakileng e leng bohlokoa.
E na le sekhahla sa phetisetso e bobebe e fetang 80% bakeng sa likarolo tse nang le mabota a masesaane.
7. Ho hanyetsa Lelakabe
•Ho Tateha ha Lelakabe:
PEI ka tlhaho e thibela malakabe, ea itima ha e tobane le malakabe 'me ha e tsoele pele ho tuka hang ha mohloli oa lelakabe o tlosoa. E lumellana le maemo a fapaneng a ho hanyetsa lelakabe, ho kenyeletsoa UL 94 V-0 bakeng sa ho chesoa ka kotloloho.
Sena se etsa hore PEI e loketse lits'ebetso tsa motlakase le likoloi moo polokeho ea mollo e tlang pele.
8. Litšobotsi tsa Ts'ebetso
•Ente e Bopa le Extrusion:
PEI e ka sebetsoa ka mekhoa e tloaelehileng ea thermoplastic joalo ka ho bopa ente, extrusion, le thermoforming. Leha ho le joalo, ka lebaka la boemo bo phahameng ba ho qhibiliha, lisebelisoa tse khethehileng li hlokahala ho sebetsana le mocheso (hangata o ka holimo ho 340 ° C).
PEI e na le viscosity e phahameng 'me e theola mocheso o phahameng, e leng se etsang hore ho be thata ho sebetsa. Leha ho le joalo, tsoelo-pele ea theknoloji ea polymer e lebisitse ho phallo e ntlafalitsoeng ea limaraka tseo ho leng bonolo ho li sebetsa.
9. Khanyetso ea Tikoloho
•Botsitso ba UV:
PEI e hanela ho senyeha ho tsoa khanyeng ea ultraviolet, ho boloka thepa ea eona ea mochine ha e pepesehetse mahlaseli a letsatsi kapa mehloli ea khanya ea maiketsetso. Leha ho le joalo, e ka 'na ea e-ba mosehla ha nako e ntse e feta ka ho pepeseha ha UV nako e telele, e ka fokotsoang ka ho eketsa li-stabilizers tsa UV.
•Maemo a Leholimo:
PEI e sebetsa hantle maemong a kantle, e hanela ho senyeha ho tsoa ho boemo ba leholimo, mongobo le lintlha tse ling tsa tikoloho.
10. Biocompatibility
•Tšebeliso ea Lingaka le Meriana:
Ka lebaka la khanyetso ea eona e ntle ea lik'hemik'hale, botsitso ba sebopeho, le ponaletso, PEI e sebelisoa haholo lisebelisoa tsa bongaka, liphutheloana tsa meriana le lisebelisoa tse kenngoeng. E kopana le litekanyetso tsa FDA bakeng sa lits'ebetso tsa tlhokomelo ea bophelo bo botle.
Lisebelisoa tsa Polyetherimide (PEI):
PEI e sebelisoa liindastering tse fapaneng tse hlokang lisebelisoa tse sebetsang hantle, joalo ka:
•Sepakapaka:Likarolo tsa sebopeho, li-brackets, le litiiso tse tlamehang ho mamella mocheso o phahameng le khatello ea mochini.
•Likoloi:Likarolo tse ka tlas'a-hood joalo ka likhokahanyo, matlo le sistimi ea mafura.
•Tsa elektroniki:Li-insulator tsa motlakase, lihokelo, le likarolo tsa motlakase tse sebetsang hantle haholo.
•Bongaka:Lijana tsa sterilization, lisebelisoa tsa tlhahlobo le lisebelisoa tse kenngoeng.
•Indasteri:Li-gears, libering, le lipompo tse sebetsang tlas'a khatello ea maikutlo le mocheso o feteletseng.
Qetello
Polyetherimide (PEI) ke polymer e sebetsang hantle haholo ea thermoplastic e tsebahalang ka botsitso ba eona bo botle ba mocheso, matla a mochini le thepa ea ho kenya motlakase. Likarolo tsena li e etsa sesebelisoa se loketseng bakeng sa lits'ebetso tse batloang indastering tse kang sefofane, likoloi, bongaka le lisebelisoa tsa elektroniki, moo ho ts'epahalang maemong a feteletseng ho leng bohlokoa. Leha e na le litšenyehelo tse holimo, ho feto-fetoha ha maemo le ho tšoarella ha PEI ho etsa hore e be thepa ea khetho bakeng sa lits'ebetso tsa maemo a holimo tsa indasteri.
Nako ea poso: Feb-14-2025
