Nyob rau hauv lub ntiaj teb xav tau ntawm high - Kev ua tau cov ntaub ntawv, fluoropolymers sawv rau lawv cov kev tshwj xeeb tsis kam mus rau cov xwm txheej huab. Ntawm lawv, Polytetrafluoroethylene (PTFE) thiab perfluoropolyether (PFPE), feem ntau paub los ntawm hom npe zoo li Teflon, yog ob qho ntawm cov nto moo tshaj plaws. Thaum ob leeg sib koom ua lub hauv paus ntawm cov pa roj carbon- Cov tsiaj hauv fluorine, cov qauv siv tshuaj lom neeg lub cev, thiab cov ntawv thov yog qhov sib txawv. Nkag siab txog qhov sib txawv ntawm PFPE vs PTFE yog qhov tseem ceeb rau cov engineers, cov neeg tsim qauv, thiab cov kws tshaj lij tshwj xeeb los xaiv cov ntaub ntawv zoo rau lawv cov kev sib tw.
Qhov no nyob rau hauv - Cov lus qhia tob yuav tshawb nrhiav qhov sib txawv ntawm ob qho kev sib txawv, pab koj txiav txim siab paub.
Cov kab mob tshuaj ntsuab: Nkag siab cov qauv molecular
Cov tub ntxhais sib txawv ntawm PTFE thiab PFPE nyob hauv lawv cov architecture.
PTFE (polystetrafluoroethylene): lub crystalline polymer
PTFE yog lub siab - molecular - qhov hnyav ntawm cov roj atoms, txhua tus sib khi rau ob lub tshuaj fluorine atoms. Nws cov qauv tuaj yeem pom tau raws li cov khoom siv, cov pob txha nraub qaum. Qhov nonear thiab cov kev qhia zoo nkauj tso cai rau cov saw hlau kom haum ua ke, sib sau ua ke crystalline zoo heev, tawv tawv. Qhov tseeb crystalline yog lub hauv paus ntawm PTFE lub npe nrov tsis sib txhuam thiab tsis yog}}} Steab cov khoom, tab sis nws kuj txwv nws qhov yooj. Qhov pom tau zoo tshaj plaws ntawm PTFE yog ib qho khoom siv, tab sis nws tseem dav siv ua Teflong hmoov rau cov khaub ncaws thiab raws li ib tug muab tub lim rau hauv cov composites.
PFPE (perfluoroSetophethers): Cov kua dej hloov tau
Hauv kev sib piv, PFPE tsis yog cov khoom siv polymer tab sis kua roj polymer. Nws cov caj qaum muaj cov pa roj carbon, oxygen, thiab fluorine atoms, tsim cov qauv ntawm cov carbon {} ether} cov pob (ether}} Tus qauv no, piv txwv los ntawm cov khoom lag luam zoo li fomblin perflecyether, qhia cov hloov pauv hloov rau hauv cov saw hlau. Cov lwg me me tsis tuaj yeem ntim kom nruj, tiv thaiv cov crystallization thiab ua rau muaj cov kua ruaj khov hla qhov ntau qhov ntau. PFPE roj yog cov qauv ntau tshaj plaws, xws li los ntawm qis- visc viscosity kua rau ntom ntom.
Lub cev thiab tshuaj lom neeg: lub taub hau - rau - he}} Lub taub hau sib piv
Thaum ob cov ntaub ntawv tau zoo nyob rau hauv ib puag ncig hnyav, lawv lub teb chaws lub xeev destate lawv cov kev ua tau zoo.
| Ntiag tug | PTFE (polytetrafluoroethylene) | Pfpe (perfluoropolyhers) |
|---|---|---|
| Lub xeev lub cev ntawm Chav Chav Chav | Khoom (tuaj yeem ua tau zoo teflon hmoov los yog molded feem) | Kua (piv txwv li, pfpe roj, roj) |
| Thermal ruaj khov | Zoo heev, feem ntau -200℃rau +260 degree | Tshwj xeeb, feem ntau -90℃rau +280℃thiab siab dua |
| Tshuaj Kuj | Inert rau yuav luag txhua yam tshuaj lom neeg; tawm tsam tsuas yog los ntawm Molten Alkali Metals thiab tshuaj fluorine nyob rau hauv huab cua. | Sib luag superb; Hancy inert rau feem ntau acids, hauv paus, cov kuab tshuaj, thiab muaj kuab tshuaj lom neeg. |
| Lubricity / Sib Txhuam | Tsis tshua muaj coefficient ntawm kev sib txhuam ua ib qho chaw ruaj khov. | Muab cov hydrodynamic lubrication raws li cov kua, txo kev hnav ntawm cov chaw txav. |
| So | Insoluble hauv txhua cov kuab tshuaj. | Insoluble nyob rau hauv cov kuab tshuaj, dej, thiab acids / bases. |
| Kev hloov pauv & evaporation | Tsis - scatile stig. | Muaj tsawg kawg vapor siab, ua rau nws tsis- qhov tsis muaj zog txawm tias lub tshuab nqus tsev. |
| Cov Khoom Siv Hluav Taws Xob | Zoo heev dielectric insulator. | Kua dej zoo heev dielectric zoo heev. |
Qhov tseem ceeb rau hauv daim ntawv thov
Lubrication:Qhov no yog qhov tseem ceeb tshaj plaws. PTFE ua raws li aCov Roj nplua nyeemCov. Thaum siv los ua ib tug muab tub lim rau hauv cov txheej txheem lossis cov khoom sib xyaw, nws muab qhov qis- kev sib txhuam. Txawm li cas los xij, nws tsis tuaj yeem ntws lossis rov ua nws tus kheej. PFPE roj, ntawm qhov tod tes, yog aKua RojricantCov. Nws tuaj yeem siv los ua cov zaj duab xis txuas ntxiv lubricating, nqa tawm thaum tshav kub thiab khib nyiab, thiab tiv thaiv cov chaw nyob hauv qhov chaw uas muaj zaj duab xis nyob qhov twg. Nws ruaj khov, tshwj xeeb tshaj yog nyob rau hauv oxygen - Cov chaw nplua nuj, ua rau nws zoo dua rau hydrocarbons thiab silicones.
Sealing thiab anti - stick:PTFE yog tus vaj ntxwv tsis muaj cai rau tsis - cookings (piv txwv li, cookware) thiab rau kev tsim cov inert beals thiab gaskets. Nws cov ntawv foos yog qhov zoo meej rau cov ntawv thov zoo qub no. PFPES, zoo li cov los ntawm cov daws teeb meem Foob, yog siv los ua cov yeeb yaj kiab khi, tiv thaiv bit}
High - Dej Kub:Hauv cov ntawv thov uas yuav tsum tau muaj ib qho ruaj khov, tsis - kua dej rau cov roj hloov cua sov lossis hloov roj, PFPE roj yog qhov kev xaiv. PTFE, ua ib qho khoom siv, ua tsis tau ua haujlwm hauv qhov peev xwm no.
Xaiv cov khoom siv yog: PTFE lossis PFPE?
Qhov kev xaiv thaum kawg nyob ntawm qhov xav tau ntawm lub cev ntawm koj daim ntawv thov.
Xaiv PTFE (polystetrafluoroethylene) thaum:
Koj xav tau ib qho khoom siv, tsis - steg sab (piv txwv li, pleev xim rau pwm, cookware, lossis ua khoom noj khoom haus.
Koj tab tom raug cov khoom sib xyaw ua ke xws li gaskets, cov ntsaws ruaj ruaj, bearings, lossis lus ceev.
Koj xav tau cov tshuaj hluav taws xob hluav taws xob rau cov xov hlau lossis cov laug cam.
Koj tab tom ua haujlwm nrog cov khoom siv sib xyaw thiab xav tau teflon hmoov rau impart tsawg kev sib txhuam thiab tshuaj lom neeg kuj.
Xaiv Pfpe (perfluorophether) thaum:
Koj xav tau lub siab - roj cov kua roj nplua nyeem rau bearings, zog, lossis compressors.
Koj daim ntawv thov ua haujlwm hauv lub tshuab nqus tsev (piv txwv li, aerospace, semiconductor raug) thiab yuav tsum tau cov kua nrog ultra- lia vapor siab.
Koj tab tom kam nrog cov tshuaj txhoj puab heev lossis siv cov pa roj oxygen thiab xav tau cov kua ruaj khov lossis ua kom cov pos hniav uas yuav tsis tawg.
Koj yuav tsum tau ntub cov yas lossis elastomicry cov khoom siv tsis muaj qhov o lossis kev cuam tshuam.
Tag
Qhov kev sib cav ntawm PFPE vs PTFE tsis yog hais txog cov khoom twg yog qhov zoo dua, tab sis hais txog qhov yog qhov cuab yeej ua haujlwm. PTFE yog lub zog, inert cov khoom - kev daws teeb meem rau static, tsis {{{{} kev sib txhuam chaw. PFPE, tshwj xeeb yog siab high- Zoo PFPE roj xws li solifient flupleopoly, yog cov resilialood ntawm siab thiab corrosive ib puag ncig.
Los ntawm kev nkag siab txog lawv cov qauv siv tshuaj txawv thiab lub cev, koj tuaj yeem tsim tawm cov peev txheej tag nrho ntawm cov tshuaj fluoropycers kom muaj kev cia siab, kev nyab xeeb, thiab kev ua haujlwm. Rau cov kev sib tw uas yuav tsum muaj cov teeb meem ruaj khov, tig mus rau PTFE. Rau cov tshuab xav tau cov neeg saib xyuas dej caw dej, PFPE yog qhov kev xaiv tsis sib xws.
Tus khub nrog ib tug ntseeg fluoropolymer khoom
Nkag siab txog qhov zoo ntawm PFPE thiab PTFE yog thawj kauj ruam. Sourcing cov siab - Kev ua tau zoo cov ntaub ntawv los ntawm cov neeg ua haujlwm txhim khu kev qha yog qhov txuas ntxiv. Peb lub tuam txhab tau mob siab los muab cov ntsiab lus sab saum toj - Tier fluoropolymer daws tau los ua tau raws li koj cov kev xav tau tshaj plaws.
Peb muab siab - PTFE PTFE, suav nrog ntau qib ntawm Tefle, kom cov ntawv thov tshwj xeeb, ua kom muaj zog thiab tshuaj lom neeg. Nrog rau, peb muaj ntau ntau ntawm PFPE cov khoom lag luam, suav nrog Hwm PFPE roj raws li cov perfleluoropolypressether. Rau kev tsis sib haum xeeb kev ua tau zoo nyob rau hauv huab kev mob, peb cov ntaub ntawv sau cia xws li cov khoom lag luam zoo li cov fomblinoly thiab kev ntseeg tau, xws li cov solvay fomblin.
Peb caw koj kom hu rau peb rau kev hais lus thiab los tham txog yuav ua li cas peb PFPE thiab PTFE cov khoom tuaj yeem muab cov kev daws teeb meem zoo rau koj cov kev xav tau. Cia peb cov kws tshaj lij qhia koj rau cov khoom raug, kom ua tau zoo ua kev ua tau zoo, thiav, thiab raug nqi - efficolic rau koj cov phiaj xwm.
Peb qhov chaw nyob
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