Cov khoom ntawm Polyetherimide (PEI)

Polyetherimide, los yog PEI, yog ib qho kev ua haujlwm siab thermoplastic polymer paub txog nws cov khoom tshwj xeeb, thermal, thiab hluav taws xob. Nws yog lub zog muaj zog, siab-rigidity aromatic polyimide nrog zoo thermal stability. Hauv qab no yog qee qhov tseem ceeb ntawm PEI:

Summary Table of Key Properties ofPolyetherimide (PEI)

1. Thermal Properties

•Thaum tshav kub kub Resistance:
PEI muaj qhov zoo tshaj plaws kub deflection kub (HDT) ntawm 215 ° C thiab 220 ° C (419 ° F - 428 ° F), uas tso cai rau nws tiv taus qhov kub thiab txias yam tsis muaj deformation tseem ceeb. Qhov no ua rau nws zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua kom sov siab, xws li hauv tsheb thiab aerospace kev lag luam.
Nws tuav lub zog thiab qhov seem stability txawm nyob rau hauv siab kub.

•Iav Transition Temperature (Tg):
Nrog rau Tg ntawm ib ncig ntawm 217 ° C (423 ° F), PEI khaws nws cov qauv kev ncaj ncees txawm nyob rau qhov kub siab tshaj qhov kev khiav hauj lwm ntau yam ntawm cov yas feem ntau.

•Tsawg Coefficient ntawm Thermal Expansion (CTE):
PEI muaj CTE tsawg heev, txhais tau hais tias nws muaj kev hloov pauv me me raws li qhov kub thiab txias hloov pauv, ua rau nws ruaj khov thiab txhim khu kev qha rau precision qhov chaw.

2. Mechanical Properties

•Siab zog thiab nruj:
PEI muaj cov cuab yeej tshwj xeeb, xws li lub zog tensile siab, lub zog flexural, thiab rigidity, uas tseem nyob twj ywm txawm tias kub. Qhov no ua rau nws haum rau cov khoom siv hauv kev xav tau ib puag ncig.
Nws lub zog tensile feem ntau yog li ntawm 80 txog 100 MPa, nyob ntawm qib.

•Impact Resistance:
Thaum PEI yog cov neeg kho tshuab muaj zog, nws muaj qhov cuam tshuam tsis zoo piv rau lwm yam khoom siv thermoplastics. Nws tuaj yeem tuav cov khoom loj tab sis nws yooj yim dua rau cov pob txha tawg hauv qee yam mob.

•Zoo Dimensional Stability:
PEI qhov chaw muaj kev ruaj ntseg zoo nyob rau hauv cov khoom siv thauj khoom, ua rau nws haum rau cov ntawv thov nruj xws li cov iav precision, bearings, thiab cov khoom siv hluav taws xob.

3. Cov khoom siv hluav taws xob

•Zoo hluav taws xob rwb thaiv tsev:
PEI yog ib qho zoo heev hluav taws xob insulator, muab siab dielectric zog thiab tsis tshua muaj hluav taws xob conductivity. Qhov no ua rau nws zoo tagnrho rau kev siv hluav taws xob thiab hluav taws xob, xws li Circuit Court boards, connectors, thiab insulators.

•Tsawg Dielectric Loss:
Nws nthuav tawm tsis tshua muaj dielectric poob, ua rau nws tsim nyog rau kev siv hluav taws xob ntau zaus.

4. Tshuaj tiv thaiv

•Zoo Tshuaj Resistance:
PEI tiv taus ntau yam tshuaj, suav nrog acids, bases, roj, thiab cov kuab tshuaj. Txawm li cas los xij, nws yuav ua rau muaj zog acids lossis cov hauv paus ntawm qhov kub thiab txias.
Nws ua tau zoo nyob rau hauv ib puag ncig hnyav, ua rau nws tsim nyog rau kev siv hauv tsheb, aerospace, thiab kev kho mob.

•Tsis-reactive:
PEI tsis-reactivity thiab biocompatibility ua rau nws haum rau kev sib cuag-rhiab qhov chaw, xws li tshuaj thiab zaub mov kev lag luam.

5. Mechanical Properties ntawm qhov kub thiab txias

•Kev ua tau zoo Low-Temperature:
PEI khaws nws lub zog txhua yam thiab qhov ruaj khov txawm tias nyob rau hauv qhov chaw qis qis, ua rau nws tsim nyog rau cov ntawv thov hauv cov xwm txheej tsis muaj kev tawg lossis poob rigidity.

6. Optical Properties

•Pob tshab:
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm PEI yog nws cov pob tshab, uas yog qhov muaj txiaj ntsig zoo hauv kev siv kho qhov muag xws li lo ntsiab muag, qhov chaw saib, thiab cov khoom siv kho qhov muag qhov pom kev pom tseeb yog qhov tseem ceeb.
Nws muaj lub teeb kis tau tus nqi ntau dua 80% rau cov ntu nyias-walled.

7. nplaim taws tsis kam

•Nplaim Retardancy:
PEI yog inherently nplaim-retardant, nws tus kheej-extinguishing thaum raug nplaim taws thiab tsis txuas ntxiv mus hlawv ib zaug cov nplaim hluav taws raug tshem tawm. Nws ua raws li cov qauv hluav taws xob ntau yam, suav nrog UL 94 V-0 rau kev hlawv ntsug.
Qhov no ua rau PEI tsim nyog rau kev siv hluav taws xob thiab tsheb uas muaj kev nyab xeeb hluav taws yog qhov tseem ceeb.

8. Cov yam ntxwv ua haujlwm

•Txhaj Molding thiab Extrusion:
PEI tuaj yeem ua tiav siv cov txheej txheem thermoplastic zoo li kev txhaj tshuaj molding, extrusion, thiab thermoforming. Txawm li cas los xij, vim nws qhov siab melting point, cov cuab yeej tshwj xeeb yuav tsum tau tswj qhov kub thiab txias (feem ntau siab dua 340 ° C).
PEI muaj viscosity siab thiab degrades ntawm qhov kub thiab txias, ua rau nws nyuaj rau txheej txheem. Txawm li cas los xij, kev nce qib hauv cov thev naus laus zis polymer tau ua rau cov qhab nia nce qib uas yooj yim dua rau kev ua haujlwm.

9. Kev tiv thaiv ib puag ncig

•UV Stability:
PEI tiv taus degradation los ntawm ultraviolet lub teeb, tswj nws cov khoom siv kho tshuab thaum raug tshav ntuj lossis cov khoom siv hluav taws xob. Txawm li cas los xij, nws tuaj yeem daj thaum lub sijhawm ntev UV raug, uas tuaj yeem txo tau los ntawm kev ntxiv UV stabilizers.

•Huab cua Resistance:
PEI ua tau zoo nyob rau sab nraum zoov, tiv thaiv kev degradation los ntawm huab cua, av noo, thiab lwm yam ib puag ncig.

10. Biocompatibility

•Kev siv tshuaj thiab tshuaj:
Ua tsaug rau nws cov tshuaj tiv thaiv zoo heev, qhov ruaj khov, thiab pob tshab, PEI tau siv dav hauv cov khoom siv kho mob, ntim tshuaj, thiab cov khoom siv cog qoob loo. Nws ua tau raws li FDA cov qauv rau daim ntawv thov kev kho mob.

Kev siv ntawm Polyetherimide (PEI):
PEI yog siv nyob rau hauv ntau yam kev lag luam uas xav tau cov ntaub ntawv ua tau zoo, xws li:
•Aerospace:Cov yam ntxwv ntawm cov khoom siv, cov hlua khi, thiab cov ntsaws ruaj ruaj uas yuav tsum tiv taus qhov kub thiab txias thiab kev ntxhov siab.
•Automotive:Nyob rau hauv lub hood Cheebtsam xws li connectors, vaj tse, thiab roj systems.
•Electronics:Hluav taws xob insulators, connectors, thiab cov khoom siv hluav taws xob ua haujlwm siab.
•Kev kho mob:Sterilization ntim, cov cuab yeej kuaj mob, thiab cov khoom siv cog qoob loo.
•Industrial:Iav, bearings, thiab twj tso kua mis ua haujlwm nyob rau hauv kev ntxhov siab thiab kub heev.

Xaus

Polyetherimide (PEI) yog ib qho kev ua tau zoo ntawm cov thermoplastic polymer paub txog nws cov thermal stability zoo, txhua yam muaj zog, thiab hluav taws xob rwb thaiv tsev. Cov yam ntxwv no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev thov hauv kev lag luam xws li aerospace, automotive, kho mob, thiab hluav taws xob, qhov kev ntseeg siab hauv huab cua yog qhov tseem ceeb. Txawm hais tias nws tus nqi siab dua, PEI qhov kev ua tau zoo thiab kev ua haujlwm ntev ua rau nws cov khoom ntawm kev xaiv rau high-end industrial applications.