PTFE yog dab tsi?
Polytetrafluoroethylene (PTFE) yog ib hom polymerized nrog tetrafluoroethylene li monomer. Nws muaj qhov kub thiab txias ua haujlwm zoo thiab tuaj yeem siv tau ntev ntawm kev rho tawm 180 ~ 260 º C. Cov khoom no muaj cov yam ntxwv ntawm acid tsis kam, alkali tsis kam thiab tsis kam mus rau ntau yam organic solvents, thiab yuav luag insoluble nyob rau hauv tag nrho cov kuab tshuaj. Nyob rau tib lub sijhawm, polytetrafluoroethylene muaj cov yam ntxwv ntawm qhov kub thiab txias, thiab nws cov kev sib txhuam coefficient tsis tshua muaj siab, yog li nws tuaj yeem siv rau lubrication, thiab kuj dhau los ua cov txheej txheem zoo tshaj plaws rau kev ntxuav yooj yim ntawm cov kav dej sab hauv. PTFE yog hais txog qhov sib ntxiv ntawm PTFE txheej hauv ob sab hauv cov EPDM roj hmab sib koom ua ke, uas feem ntau yog dawb.
Lub luag haujlwm ntawm PTFE
PTFE tuaj yeem tiv thaiv cov pob qij txha zoo los ntawm cov kua qaub, muaj zog alkali lossis cov roj kub kub thiab lwm yam xov xwm corrosion.
Lub hom phiaj
- Nws yog siv rau hauv kev lag luam hluav taws xob thiab ua cov txheej rwb thaiv tsev, corrosion resistant thiab hnav-resistant cov ntaub ntawv rau lub hwj chim thiab teeb liab kab nyob rau hauv aerospace, aviation, electronics, instrumentation, computer thiab lwm yam lag luam. Nws tuaj yeem siv los ua cov yeeb yaj kiab, cov ntawv raj, cov pas nrig, cov kabmob, gaskets, li qub, cov kav dej tshuaj, cov yeeb nkab fittings, cov khoom ntim ntim khoom, thiab lwm yam.
- Nws yog siv rau hauv cov khoom siv hluav taws xob, tshuaj lom neeg kev lag luam, aviation, machinery thiab lwm yam kev lag luam los hloov quartz glassware rau kev tshuaj xyuas ultra-ntshiab thiab khaws cia ntawm ntau cov kua qaub, alkalis thiab cov kuab tshuaj organic hauv thaj chaw atomic zog, tshuaj, semiconductor. thiab lwm yam kev lag luam. Nws tuaj yeem ua rau cov hluav taws xob rwb thaiv tsev siab, siab zaus xaim thiab cable sheaths, corrosion resistant chemical utensils, high temperature resistant oil pipes, artificial organs, etc. Nws tuaj yeem siv los ua additives rau plastics, roj hmab, coatings, inks, lubricants, roj thiab lwm yam.
- PTFE yog resistant rau kub thiab corrosion, muaj zoo heev hluav taws xob rwb thaiv tsev, laus kuj, tsis tshua muaj dej nqus, thiab zoo heev tus kheej-lubrication kev ua tau zoo. Nws yog universal lubricating hmoov haum rau ntau yam xov xwm, thiab yuav tsum tau sai coated los ua ib tug qhuav zaj duab xis, uas yuav siv tau los hloov graphite, molybdenum thiab lwm yam inorganic lubricants. Nws yog tus neeg sawv cev tso tawm tsim nyog rau cov thermoplastic thiab thermosetting polymers, muaj peev xwm zoo heev. Nws yog dav siv hauv elastomer thiab roj hmab kev lag luam thiab hauv kev tiv thaiv corrosion.
- Raws li kev muab tub lim rau epoxy resin, nws tuaj yeem txhim kho kev puas tsuaj, kub tsis kam thiab corrosion kuj ntawm epoxy nplaum.
- Nws yog tsuas yog siv los ua cov binder thiab muab tub lim ntawm hmoov.
Qhov zoo ntawm PTFE
- Kev kub siab ua haujlwm - ua haujlwm kub txog 250 ℃
- Tsawg kub tsis kam - zoo mechanical toughness; Txawm hais tias qhov kub thiab txias poob rau - 196 ℃, elongation ntawm 5% tuaj yeem tswj tau.
- Corrosion kuj - rau feem ntau cov tshuaj thiab cov kuab tshuaj, nws yog inert thiab resistant rau muaj zog acids thiab alkalis, dej thiab ntau yam organic solvents.
- Huab cua tsis kam - muaj qhov zoo tshaj plaws kev laus lub neej ntawm cov yas.
- High lubrication yog qhov sib txhuam coefficient qis tshaj ntawm cov khoom siv.
- Non-adhesion - yog qhov tsawg kawg nkaus ntawm qhov nro hauv cov khoom siv thiab tsis ua raws li cov khoom siv.
- Tsis muaj tshuaj lom - Nws muaj lub cev tsis muaj zog, thiab tsis muaj qhov cuam tshuam tsis zoo tom qab kev cog qoob loo mus ntev li cov hlab ntsha thiab cov kabmob.
- Hluav taws xob rwb thaiv tsev - tuaj yeem tiv taus 1500 V high voltage.
Post lub sij hawm: Jan-10-2023
