PTFE ntaub, lossis polytetrafluoroethylene ntaub, yog ib daim ntaub ua haujlwm siab uas siv dav hauv ntau qhov chaw vim nws cov dej tsis nkag, ua pa tau, tiv cua, thiab sov so.
Lub plawv ntawm PTFE ntaub yog polytetrafluoroethylene microporous zaj duab xis, uas muaj cov qauv microporous tshwj xeeb nrog qhov loj me tsuas yog 0.1-0.5 microns, uas yog me dua li lub cheeb ntawm cov dej molecule, tab sis ntau txhiab zaus loj dua li cov dej pa molecule. Yog li ntawd, PTFE ntaub tuaj yeem thaiv qhov nkag mus ntawm cov dej ntws thaum tso cai rau cov dej pa hla mus dawb, ua tiav kev sib xyaw ua ke zoo meej ntawm kev tiv thaiv dej thiab ua pa tau. Cov ntaub no kuj muaj cov khoom tiv thaiv cua zoo, thiab nws cov qauv microporous tuaj yeem tiv thaiv cua convection, yog li tswj kev sov hauv cov khaub ncaws.
1. Cov khoom yooj yim ntawm PTFE
PTFE tau tsim thawj zaug los ntawm DuPont hauv xyoo 1940 thiab hu ua "King of Plastics" rau nws qhov kev ua tau zoo heev. Cov qauv molecular ntawm PTFE ruaj khov heev, thiab lub zog sib txuas ntawm cov pa roj carbon thiab cov pa roj fluorine siab heev, uas muab PTFE cov yam ntxwv zoo kawg li hauv qab no:
● Kev tiv thaiv dej:Cov ntaub PTFE muaj cov khoom tiv thaiv dej zoo heev, thiab cov dej tsis tuaj yeem nkag mus rau hauv lawv qhov chaw, yog li lawv feem ntau siv los ua cov khaub ncaws thiab cov khoom siv tiv thaiv dej.
● Ua pa tau:Txawm hais tias cov ntaub PTFE tsis muaj dej los, nws muaj cov qauv me me uas tso cai rau cov pa dej hla dhau, ua rau tus neeg hnav xis nyob. Cov yam ntxwv no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khaub ncaws ua si sab nraum zoov thiab cov khaub ncaws tiv thaiv.
● Kev tiv thaiv tshuaj lom neeg:PTFE tiv taus feem ntau cov tshuaj lom neeg thiab yuav luag tsis cuam tshuam los ntawm cov tshuaj corrosive xws li acids, alkalis, thiab cov kuab tshuaj.
● Kev tiv taus kub:PTFE cov ntaub tuaj yeem ruaj khov ntawm qhov kub thiab txias heev, thiab nws qhov kub ua haujlwm yog txij li -200 ° C txog + 260 ° C, tsim nyog rau qhov chaw kub siab lossis qis.
● Cov coefficient sib txhuam tsawg:PTFE muaj qhov chaw du heev thiab muaj kev sib txhuam tsawg heev, yog li nws feem ntau siv rau hauv cov khoom lag luam uas xav tau txo kev sib txhuam.
● Kev tiv thaiv kev laus:PTFE tiv taus ultraviolet thiab lwm yam ib puag ncig, thiab tsis yooj yim laus tom qab siv ntev.
Ntawm lawv, qhov tseem ceeb tshaj plaws ntawm PTFE ntaub yog nws cov tshuaj tiv thaiv corrosion. Nws tuaj yeem tiv taus kev yaig ntawm cov kua qaub muaj zog, cov alkali muaj zog thiab lwm yam tshuaj lom neeg, yog li nws yog dav siv rau hauv cov khaub ncaws tshwj xeeb xws li nuclear, biological thiab tshuaj tiv thaiv khaub ncaws thiab tshuaj tiv thaiv khaub ncaws. Tsis tas li ntawd, PTFE ntaub kuj muaj cov tshuaj tua kab mob, antistatic, tiv thaiv kab mob thiab lwm yam haujlwm, ua rau nws tseem ceeb hauv kev tiv thaiv kev kho mob.
Hauv kev siv tiag tiag, PTFE ntaub yog sib xyaw nrog nylon, polyester thiab lwm yam ntaub los ntawm cov txheej txheem lamination tshwj xeeb los ua ob-hauv-ib lossis peb-hauv-ib daim ntaub sib xyaw. Cov ntaub sib xyaw no tsis yog tsuas yog khaws cia qhov kev ua tau zoo ntawm PTFE zaj duab xis, tab sis kuj muaj kev nplij siab thiab ruaj khov ntawm lwm cov ntaub.
2. Cov teb thov ntawm PTFE ntaub
Vim yog cov khoom tshwj xeeb ntawm PTFE fabrics, nws tau siv dav hauv ntau qhov chaw:
● Khaub ncaws sab nraum zoov:Cov ntaub PTFE feem ntau siv los ua cov tsho tiv no, ris thiab khau uas tsis muaj dej thiab ua pa tau, tsim nyog rau kev ua si sab nraum zoov xws li kev nce roob thiab caij ski.
● Cov khaub ncaws tiv thaiv kev lag luam:Nws cov tshuaj tiv thaiv thiab kub ua rau nws yog cov khoom siv zoo tshaj plaws rau kev tiv thaiv khaub ncaws hauv tshuaj lom neeg, roj av thiab lwm yam lag luam.
● Cov khoom siv kho mob:Cov ntaub PTFE yog siv los ua cov khaub ncaws phais, cov ntaub qhwv tua kab mob thiab lwm yam khoom siv kho mob kom ntseeg tau tias muaj ib puag ncig huv.
● Cov ntaub ntawv lim dej:Cov qauv microporous ntawm PTFE ua rau nws yog cov khoom siv lim dej zoo, uas yog siv dav hauv kev ntxuav huab cua, kev kho dej thiab lwm yam teb.
● Kev Ua Haujlwm Dav Hlau:PTFE qhov kub tsis kam thiab coefficient sib txhuam qis ua rau nws siv rau hauv thaj chaw aerospace, xws li cov ntsaws ruaj ruaj thiab cov ntaub ntawv rwb thaiv tsev.
3. Kev tiv thaiv ib puag ncig ntawm PTFE ntaub
Txawm hais tias PTFE cov ntaub muaj ntau yam zoo, lawv txoj kev tiv thaiv ib puag ncig kuj tau nyiam ntau qhov kev saib xyuas. PTFE yog cov khoom siv uas nyuaj rau lwj, thiab nws yuav muaj qee qhov cuam tshuam rau ib puag ncig tom qab raug pov tseg. Yog li ntawd, yuav ua li cas rov ua dua thiab pov tseg cov ntaub PTFE tau dhau los ua qhov teeb meem tseem ceeb. Tam sim no, qee lub tuam txhab tab tom tsim cov ntaub ntawv PTFE rov ua dua tshiab kom txo lawv cov kev cuam tshuam rau ib puag ncig.
4. Cov Lus Qhia Luv Luv
Cov ntaub PTFE tau dhau los ua cov khoom siv nyiam rau ntau daim ntawv thov siab vim lawv cov dej tsis nkag, ua pa tau zoo, tiv taus tshuaj lom neeg, tiv taus kub thiab lwm yam khoom. Txawm hais tias nws yog kev ua si sab nraum zoov, kev tiv thaiv kev lag luam, lossis kev kho mob thiab kev tsav dav hlau, cov ntaub PTFE tau qhia lawv cov txiaj ntsig tshwj xeeb. Txawm li cas los xij, nrog kev nce ntxiv ntawm kev paub txog ib puag ncig, yuav ua li cas thiaj li daws tau qhov pov tseg ntawm cov ntaub PTFE yuav dhau los ua qhov tseem ceeb ntawm kev tshawb fawb thiab kev txhim kho yav tom ntej.
Lub sijhawm tshaj tawm: Lub Peb Hlis-18-2025