Ultem® / PEI (polyetherimide)yog lub zog muaj zog amorphous polymer nrog cov cua kub zoo heev thiab nplaim taws ua haujlwm (nqa qhov ntsuas kub ntawm 94-V-0) nrog cov pa luam yeeb me me.Nws ua haujlwm tsis tu ncua mus rau 340 ° F, ua rau nws zoo dua rau cov khoom siv yas xws li Nylon thiab Delrin®.
PTFEAmeslikas tsim los siv rau hauv kev siv aerospace tab sis tsis ntev tau pom ib lub tsev nyob rau hauv suav tsis txheeb cov ntawv thov kev lag luam.PTFE cov yam ntxwv tshwj xeeb muaj xws li: tshuaj inertness (muaj tshuaj tsawg heev tuaj yeem tua nws), tsis tshua muaj coefficient ntawm kev sib txhuam (tsis muaj dab tsi tuaj yeem lo rau cov khoom siv nrog lub zog), siab kub tsis kam (muaj peev xwm ua haujlwm kub ntawm 500 ° F) thiab muaj txiaj ntsig zoo hauv qhov kub thiab txias ib puag ncig.
Ultem® / PEI (polyetherimide) yog lub zog muaj zog amorphous polymer nrog cov cua sov thiab nplaim taws ua haujlwm zoo (nqa qhov ntsuas kub ntawm 94-V-0) nrog cov pa luam yeeb me me.Nws ua haujlwm tsis tu ncua mus rau 340 ° F, ua rau nws zoo dua rau cov khoom siv yas xws li Nylon thiab Delrin®.Ultem® yog qhov kev daws teeb meem zoo tshaj plaws rau cov ntawv thov uas xav tau lub zog siab thiab muaj peev xwm tiv taus qhov kub thiab txias.Cov khoom lag luam kuj haum rau cov ntawv thov uas yuav tsum muaj cov khoom siv hluav taws xob zoo ib yam dhau ntawm ntau qhov ntau zaus.Ultem® yog hydrolysis resistant thiab tiv taus heev rau acidic kev daws teeb meem thiab muaj peev xwm zam rov qab autoclaving cycles, xws li nrog rov ua kom tsis muaj menyuam ntawm cov khoom siv kho mob rov qab siv dua.Ultem® tau siv dav hauv cov khoom siv hluav taws xob vim nws qhov zoo arc tsis kam thiab dielectric tsis tu ncua.Lwm daim ntawv thov raug suav nrog kev ntsuas ntsuas thiab cov khoom siv uas xav tau lub zog siab thiab nruj ntawm qhov kub siab.
Kev sib piv ntawm polymer PTFE / FEP thiab Ultem® / PEI (polyetherimide) Cov Khoom Muaj nqis
Cov ntaub ntawv siv
Polymer PTFE / FEPCov kev daws teeb meem; Tsis yog lubricated bearings; O-rings; Foob; Capacitors; Semiconductor manufacturing; Kub kub qhov hluav taws xob; Gaskets; Valve Cheebtsam.
Ultem® / PEI (polyetherimide) 
efense & aerospace conductors; Connectors; Seals; Pumps & li qub.
Khoom Khoom
Polymer PTFE / FEPCov khoom zoo dielectric; Inertness rau feem ntau cov tshuaj; Kub kub thiab tshuaj tiv thaiv; Tsis tshua muaj coefficient ntawm kev sib txhuam; Cov hluav taws xob zoo heev; xoom noo noo nqus; Relatively insensitive rau lub zog zaus; Machinability.
Ultem® / PEI (polyetherimide): Tsis tshua muaj zog thiab tawv; FDA raws qib muaj; Cov tshuaj lom neeg muaj zog; siab dielectric zog.
Post lub sij hawm: Nov-05-2017