Polytetrafluoroethene,luv:PTFE
Alias: PTFE, tetrafluoroethylene, yas vaj ntxwv, F4.
Qhov zoo ntawm PTFE
PTFEyog cov yas engineering tshwj xeeb, tam sim no yog cov khoom siv tiv taus corrosion, hu ua "yas vaj ntxwv". Cov yam ntxwv tseem ceeb yog qhov kub thiab txias tsis kam, corrosion tsis kam, rwb thaiv tsev siab, laus tsis kam, lubrication tus kheej.
Nws siv rau hauv aerospace, electronics thiab electrical appliances, chemical industry, machinery thiab instruments, food and medical, pumps, valves thiab pipelines, cars and ships, air compressors, thiab lwm yam, thiab tau dhau los ua ib yam khoom siv tseem ceeb rau kev daws ntau yam technologies tseem ceeb hauv kev lag luam niaj hnub no.
PTFE molecule inert F atoms tiv thaiv thiab tiv thaiv CC bond, thiab CF bonding zog yog qhov ruaj khov tshwj xeeb, cov saw molecular nyuaj rau rhuav tshem, yog ib qho qauv ruaj khov heev. Cov qauv molecular no kuj piav qhia txog cov yam ntxwv zoo ntawm PTFE hauv qab no.
Kev tiv thaiv xeb:Ntxiv rau cov hlau alkali uas yaj thiab ob peb cov kuab tshuaj xws li cov hydrocarbons alkane tag nrho saum 300 degrees Celsius, nws tiv taus kev xeb mus sij hawm ntev los ntawm lwm yam tshuaj lom neeg.
Kev tiv taus kub thiab txias: nws siv tau ntev ntawm -60 + 260 ℃.
Lubrication siab:qhov coefficient me tshaj plaws ntawm kev sib txhuam ntawm cov khoom khov, txawm tias dej khov tsis tuaj yeem piv nrog nws.
Tsis lo rau:qhov kev nruj me tshaj plaws ntawm cov khoom khov kho, tsis lo rau ib yam khoom twg.
Kev Tiv Thaiv Huab Cua:Cov yas muaj hnub nyoog ntev tshaj plaws.
Tsis muaj tshuaj lom:cov khoom siv tuaj yeem siv ua cov hlab ntsha dag, tsis muaj tshuaj lom thiab tsis ua xua thiab lwm yam kev tsis haum, rau cov khoom noj thiab tshuaj qib.
Cov khoom rwb thaiv tsev:ib zaj duab xis tuab li ntawv xov xwm txaus los tiv taus hluav taws xob siab ntawm 1500V.
Tsis tas li ntawd xwb, PTFE kuj tsis muaj dej noo, tsis kub hnyiab, thiab tiv taus oxygen thiab ultraviolet lub teeb heev.
Qhov tsis zoo ntawm PTFE
Txawm hais tias PTFE muaj kev ua tau zoo heev, tab sis nws lub zog tsis tshua muaj zog, qhov loj ntawm kev nthuav dav, tsis hnav tsis kam, tsis nkag tsis kam, thermal conductivity tsis zoo thiab lwm yam tsis zoo. Hauv lub zog kho tshuab thiab lwm yam mob nyuaj, xws li siv rau hauv kev lag luam valve sealing thiab nws qhov kev txwv ntawm kev siv nyab xeeb ntawm qhov kub feem ntau yog nyob rau hauv -70 ~ + 150 ℃. Txhawm rau kov yeej cov kev tsis zoo no, PTFE resin tuaj yeem sau nrog cov neeg sawv cev txhawb nqa kom txhim kho cov khoom siv kho tshuab ntawm cov khoom siv, txhawm rau nthuav dav qhov ntau thiab tsawg ntawm kev siv nws cov ntaub ntawv.
Kev Taw Qhia Txog Cov Khoom Ntawm Cov PTFE Xim
Cov xim thawj ntawm PTFE yog dawb milky, thaum cov xim PTFE yog vim cov khoom siv PTFE puag yog puv nrog cov khoom pabcuam. Cov khoom pabcuam tuaj yeem muab faib ua ob pawg raws li kev siv: tus neeg sawv cev txhim kho thiab tus neeg sawv cev hmoov xim.
Chav kawm ntawm cov tshuaj pleev xim: yog cov hmoov xim uas muaj nyob hauv PTFE, nws tuaj yeem ua tau dub, daj, liab, ntsuab, xiav thiab lwm yam. Cov tshuaj pleev xim tsuas yog hloov xim ntawm PTFE xwb, thiab qhov sib piv ntawm cov tshuaj pleev xim yog me me xwb, yog li ntawd cov nyhuv ntawm PTFE thawj qhov kev ua tau zoo yuav tsis raug saib xyuas. Hauv kev xav, cov tshuaj pleev xim yuav tsum muaj peev xwm cuam tshuam rau kev ruaj khov ntawm cov tshuaj lom neeg ntawm PTFE, kev rwb thaiv tsev, lub zog tensile thiab lwm yam khoom siv kho tshuab. Yog li ntawd, qee lub sijhawm tshwj xeeb yuav tsum paub txog nws. Cov xim PTFE ua tau raws li cov neeg siv khoom xav tau uas muaj cov xim pom.
Kev yuav cov raj PTFE zoo tsis yog tsuas yog hais txog kev xaiv cov lus qhia sib txawv rau ntau daim ntawv thov sib txawv xwb. Ntau ntxiv rau kev xaiv lub chaw tsim khoom txhim khu kev qha.BesteflonFluorine yas Industry Co., Ltd. tshwj xeeb hauv kev tsim cov khoom zooPTFE hosesthiab cov raj xa dej tau 20 xyoo. Yog tias muaj lus nug thiab xav tau cov raj xa dej ptfe, thov koj xav tiv tauj peb kom tau txais cov lus qhia ntxiv.
Lub sijhawm tshaj tawm: Plaub Hlis-19-2024