Polyetherimide, kana PEI, ndeyepamusoro-inoshanda thermoplastic polymer inozivikanwa neayo akasiyana emuchina, anopisa, uye emagetsi zvimiro. Iyo yakakwirira-yakasimba, yakakwirira-yakaomarara inonhuhwirira polyimide ine yakanakisa kupisa kugadzikana. Pazasi pane akakosha zvimiro zvePEI:
Pfupiso Tafura yeZvinhu Zvinokosha zvePolyetherimide (PEI)
| Property | Details |
|---|---|
| Glass Transition Temperature (Tg) | ~217°C (423°F) |
| Heat Deflection Temperature (HDT) | ~215–220°C (419–428°F) |
| Tensile Simba | 80–100 MPa (inosiyana negiredhi) |
| Flexural Strength | Yakakwirira, inokodzera zvikamu zvekugadzirisa |
| Impact Resistance | Pakati nepakati |
| Magetsi Insulation | Yakanakisa, yakakwira dielectric simba |
| Chemical Resistance | Inopikisa acids, mabhesi, mafuta, uye zvinonyungudutsa |
| Flame Resistance | Kuzvidzima, UL 94 V-0 chiyero |
| UV Kupokana | Yakanaka, asi inogona yero nekufamba kwenguva isina UV stabilizer |
| Transparency | Yakakwirira, kazhinji inopfuura 80% kufambisa kwechiedza |
| Biocompatibility | Inokodzera zvikumbiro zvekurapa, FDA inoenderana |
1. Thermal Properties
•Heat Resistance:
PEI ine tembiricha yekupisa inoshamisa (HDT) iri pakati pe215 ° C uye 220 ° C (419 ° F-428 ° F), iyo inoibvumira kutsungirira kutonhora kwakanyanya pasina deformation yakakosha. Izvi zvinoita kuti ive yakanakira zvikumbiro zvinoda kupisa kupisa kwakanyanya, senge mumaindasitiri emotokari uye aerospace.
Inochengetedza simba uye kugadzikana kwedimensional kunyangwe kune tembiricha yakakwirira.
•Glass Transition Temperature (Tg):
Iine Tg inotenderedza 217 ° C (423 ° F), PEI inochengetedza hunhu hwayo hwekutendeseka kunyangwe patembiricha iri kure nepamusoro peyakajairwa mashandiro emapurasitiki mazhinji.
•Yakaderera Coefficient yeThermal Expansion (CTE):
PEI ine CTE yakaderera kwazvo, zvichireva kuti inosangana neshanduko shoma shoma sezvo tembiricha dzinochinja, zvichiita kuti inyatsogadzikana uye yakavimbika kune chaiyo zvikamu.
2. Mechanical Properties
•High Simba uye Kuoma:
PEI inopa yakasarudzika michina zvivakwa, senge yakakwira tensile simba, flexural simba, uye kuomarara, izvo zvinoramba zvakadaro kunyange pakupisa kwakanyanya. Izvi zvinoita kuti ive yakakodzera kune zvimiro zvemukati munzvimbo dzinoda.
Simba rayo rekusimba rinowanzobva pa80 kusvika ku100 MPa, zvichienderana negiredhi.
•Impact Resistance:
Nepo PEI yakasimba zvine mutsindo, ine mwero maitiro ekupikisa kana ichienzaniswa nedzimwe engineering thermoplastics. Inogona kubata mitoro mikuru asi inowanzoita brittle fracture pasi pemamwe mamiriro.
•Yakanakisa Dimensional Kugadzikana:
Zvikamu zvePEI zvinoratidza kugadzikana kwakanyanya pasi pemichina mitoro, ichiita kuti ive yakakodzera kune yakasimba-kushivirira zvikumbiro senge magiya chaiwo, mabhengi, uye zvinobatanidza magetsi.
3. Electrical Properties
•Yakanaka Magetsi Insulation:
PEI yakanakisa magetsi insulator, inopa yakakwira dielectric simba uye yakaderera magetsi conductivity. Izvi zvinoita kuti ive yakakodzera kune zvemagetsi nemagetsi zvikumbiro, senge mabhodhi edunhu, zvinobatanidza, uye insulators.
•Yakaderera Dielectric Kurasika:
Iyo inoratidzira yakaderera dielectric kurasikirwa, ichiita kuti ive yakakodzera kune yakakwira-frequency magetsi ekushandisa.
4. Chemical Resistance
•Yakanaka Chemical Resistance:
PEI inopesana nemhando dzakasiyana dzemakemikari, kusanganisira acids, mabhesi, mafuta, uye zvinonyungudutsa. Nekudaro, inogona kuve panjodzi kune yakasimba asidhi kana mabhesi pakupisa kwakanyanya.
Inoita zvakanaka munzvimbo dzakaoma, ichiita kuti ive yakakodzera kunyorera mumotokari, aerospace, uye zvikamu zvekurapa.
•Non-reactive:
PEI's non-reactivity uye biocompatibility inoita kuti ive yakakodzera kunharaunda-inonzwa-sensitive nharaunda, senge maindasitiri emishonga uye ekugadzira chikafu.
5. Mechanical Properties pane Low Temperature
•Yakanaka Yakaderera-Tembiricha Kuita:
PEI inochengetedza simba rayo remuchina uye kugadzikana kwedimensional kunyangwe munzvimbo dzakaderera-tembiricha, zvichiita kuti ive yakakodzera kushandisirwa mu sub-zero mamiriro pasina kutsemuka kana kurasikirwa nekuoma.
6. Optical Properties
•Kujeka:
Chimwe chezvinhu zvinocherechedzwa zvePEI kujeka kwayo, iyo inobatsira mumashandisirwo emagetsi senge lenzi, nzvimbo dzekutarisa, uye michina yemaziso uko kuoneka kwakajeka kwakakosha.
Iine mwero wekutapurirana mwenje unodarika 80% wezvikamu zvitete-madziro.
7. Murazvo Resistance
•Flame Retadancy:
PEI inogara murazvo wemoto, inodzima moto kana yaiswa mumoto uye hairambe ichibvira kana murazvo wabviswa. Inopindirana neyakasiyana siyana yekuramba miriro, kusanganisira UL 94 V-0 yekupisa yakatwasuka.
Izvi zvinoita kuti PEI ikwane kumagetsi nemotokari kunyorera uko kuchengetedza moto kuri pamberi.
8. Kugadzirisa Hunhu
•Jekiseni Molding uye Extrusion:
PEI inogona kugadziriswa uchishandisa yakajairwa thermoplastic matekiniki senge jekiseni kuumba, extrusion, uye thermoforming. Nekudaro, nekuda kwekunyungudika kwayo kwakakwira, michina yakasarudzika inodiwa kubata tembiricha (kazhinji iri pamusoro pe340 ° C).
PEI ine yakakwira viscosity uye inodzikisira pane yakakwirira tembiricha, zvichiita kuti zviome kugadzirisa. Nekudaro, kufambira mberi mune tekinoroji yepolymer kwatungamira kuyerera-kuwedzeredzwa mamakisi ari nyore kugadzirisa.
9. Environmental Resistance
•UV Kugadzikana:
PEI inoramba kushatiswa kubva kuchiedza che ultraviolet, ichichengetedza hunhu hwayo kana yakafumurwa nechiedza chezuva kana magetsi ekugadzira magetsi. Nekudaro, inogona yero nekufamba kwenguva nekurebesa UV kuratidzwa, iyo inogona kudzikiswa nekuwedzera UV stabilizer.
•Weather Resistance:
PEI inoita zvakanaka mumamiriro ekunze, kuramba kushatiswa kubva kumamiriro ekunze, humidity, uye zvimwe zvakatipoteredza.
10. Biocompatibility
•Kushandiswa Kwekurapa uye Mushonga:
Nekuda kwekunaka kwayo kwemakemikari kuramba, kugadzikana kwedimensional, uye pachena, PEI inoshandiswa zvakanyanya mumidziyo yekurapa, kurongedza kwemishonga, uye midziyo inodyarwa. Inosangana nemiyero yeFDA yezvehutano zvekushandisa.
Zvishandiso zvePolyetherimide (PEI):
PEI inoshandiswa mumhando dzakasiyana-siyana dzemaindasitiri anoda zvinhu zvepamusoro-soro, zvakadai se:
•Aerospace:Zvimiro zvezvinhu, mabhuraketi, uye zvisimbiso zvinofanirwa kutsungirira tembiricha yakakwira uye kushushikana kwemagetsi.
•Motokari:Under-the-hood zvinhu senge zvinobatanidza, dzimba, uye mafuta masisitimu.
•Zvemagetsi:Magetsi insulators, zvinobatanidza, uye yakakwirira-inoshanda magetsi zvikamu.
•Kurapa:Sterilization midziyo, midziyo yekuongorora, uye midziyo inoisirwa.
•Industrial:Magiya, mabearings, uye pombi dzinoshanda pasi pekunetseka uye tembiricha yakanyanyisa.
Mhedziso
Polyetherimide (PEI) ndeyepamusoro-inoshanda thermoplastic polymer inozivikanwa nekunaka kwayo kugadzikana kwekupisa, simba remuchina, uye zvivakwa zvemagetsi. Aya maficha anoita kuti ive chinhu chakanakira kukumbira zvikumbiro mumaindasitiri akadai seaerospace, mota, zvekurapa, uye zvemagetsi, uko kuvimbika mumamiriro akanyanya kwakakosha. Pasinei nemutengo wayo wakakwira, kuita kwakasiyana-siyana uye kusimba kwePEI kunoita kuti ive chinhu chesarudzo chepamusoro-magumo maindasitiri ekushandisa.
Nguva yekutumira: Feb-14-2025
