Polytetrafluoroethylene los yog PTFE (feem ntau hu ua polymer) yog ib tug tshwj xeeb ntau yam ivory-dawb thiab opaque yas fluoropolymer;Nws yog tsim los ntawm cov dawb radical polymerization ntawm ntau tetrafluoroethene molecules, thiab yog tsim rau ntau yam kev siv nyob rau hauv kev lag luam raws li ntau haiv neeg xws li aerospace, cov khoom noj thiab haus kev lag luam, tshuaj thiab kev lag luam.
Ua los ntawm AFT Fluorotec hauv cov pas nrig lossis cov raj ntawm txhua qhov loj, lossis ntim nrog iav, carbon, stainless hlau lossis ntau lwm cov ntaub ntawv los ua kom hnav tsis kam thiab lub zog, txawm li cas los xij koj qhov project lossis tsim, peb paub tseeb tias muaj cov khoom siv uas yuav ua haujlwm rau koj. .
LUB TSEEM CEEB NTAWM PTFE Yog tias koj tab tom sim tsim kom muaj qhov hloov tau yooj yim, tshuaj tiv thaiv, thermal resistant, non-stick thiab hluav taws xob resistant khoom, thiab nws tsis tau ua tiav, koj yuav cia siab tias koj tuaj yeem tuaj nrog cov khoom siv rau qhov chaw. ze li zoo li PTFE nyob rau hauv cov cheeb tsam no.
PTFE lub melting point yog nyob ib ncig ntawm 327 ° C, thiab ntshiab PTFE yog yuav luag tag nrho cov tshuaj inert, heev insoluble nyob rau hauv feem ntau cov kuab tshuaj los yog tshuaj, thiab thermally ruaj khov txaus los siv ntawm -200 ° C thiab + 260 ° C yam tsis muaj degrading.
Lwm cov khoom muaj txiaj ntsig PTFE yog nws lub zog flexural siab, txawm tias nyob rau hauv qhov kub thiab txias, muaj zog hluav taws xob thiab dielectric zog, tsis kam mus rau dej (vim fluorine's siab electronegativity), thiab qis coefficient ntawm kev sib txhuam.PTFE qhov ceev kuj yog siab heev, ntawm 2200 kg / m3.
Qhov tseeb, dhau ntawm cov tshuaj tiv thaiv rau qee cov tshuaj thiab cov kuab tshuaj (piv txwv li, chlorine trifluoride, cobalt (III) fluoride, xenon difluoride lossis elementary fluorine yog nyob rau ntawm qhov kub thiab txias), tsuas yog qhov yuav tsum tau muab coj los xav thaum siv PTFE yog tias nws tsis muaj qhov ua haujlwm zoo rau lub zog hluav taws xob siab, uas yuav ua rau tawg ntawm PTFE molecule.
MODIFIED PTFE PROPERTIES Ntxiv nrog rau cov ntshiab PTFE, muaj ob lub co-polymers uas muaj txiaj ntsig zoo li PTFE, tab sis nrog qee yam khoom sib txawv.
PFA los yog Perfluoroalkoxy muaj cov khoom zoo sib xws rau PTFE nyob rau hauv uas nws yog heev chemically resistant, saj zawg zog thiab thermally ruaj khov (nrog rau kev siv tas mus li 260 degrees C), tab sis thaum PTFE muaj ib co nyiam nkag, PFA yog creep resistant thiab zoo heev rau yaj-ua, txhaj tshuaj molding, extrusion, compression molding, tshuab moulding, thiab hloov moulding.
TFM, hu ua PTFE-TFM, yog polytetrosraethylene nrog cov khoom siv denserorropvinyn, muab cov khoom siv hluav taws xob ntxiv uas yog qhov sib txawv, thiab muaj txiaj ntsig.FILLED PTFEPure los yog nkauj xwb PTFE tuaj yeem deform tsis zoo nyob rau hauv ib qho kev thauj khoom, tab sis kev siv cov fillers tuaj yeem pab nrog qhov no, txawm hais tias nws yuav tsum tau muab sau tseg tias tsis yog tag nrho cov PTFE puv yog tsim rau siv nrog zaub mov.
Ntxiv cov muab tub lim rau PTFE tuaj yeem ua kom nws lub zog, txhim kho kev tiv thaiv kev puas tsuaj, ntxiv hluav taws xob conductivity thiab ntau dua;Txawm li cas los xij, ntxiv cov fillers tuaj yeem txo qee qhov zoo ntawm PTFE zog, xws li tshuaj tiv thaiv uas yuav raug txwv los ntawm qhov muab tub lim.
Fillers siv tau los ntawm iav hauv ntau feem pua, stainless hlau, molybdenum disulphide, carbon lossis graphite, nyob ntawm seb cov khoom twg yuav tsum tau txhim kho.
Qhov txiaj ntsig zoo thiab txiaj ntsig ntawm kev siv PTFE Qhov zoo tshaj plaws ntawm PTFE yog nws cov khoom siv ntau yam, thiab ntau yam kev siv ntau yam khoom thiab kev lag luam sib txawv rau cov khoom siv no yog staggering.
Kev siv PTFE tuaj yeem muaj txiaj ntsig zoo hauv kev tsim khoom thiab kev tsim vaj tsev, tsis yog hauv kev ua cov raj lossis cov hlua rau kev tuav lossis khaws cov tshuaj corrosive, tab sis los ntawm txheej txheej xws li bearings lossis screws kom lub neej ntawm ob qho tib si ntawm lawv tus kheej thiab cov tshuab lawv muaj. ib feem ntawm.
Lub PTFE-coated ntsia hlau yuav tiv taus corrosion, vim PTFE lub peev xwm los tua cov dej thiab roj, thiab lubricated los ntawm cov khoom kom smoothly tsav mus rau txhua qhov chaw uas koj tau fastening rau, nrog txo kev sib txhuam, ua rau tsawg hnav ntawm ob lub hau thiab qhov saum npoo, thiab ntev-ntev, ruaj ntseg tiav.
Kev sib txhuam thiab kev hnav kuj tuaj yeem yog qhov tseem ceeb nrog cov kabmob, thiab lub tsho PTFE tuaj yeem muab cov txiaj ntsig zoo ib yam nrog cov txheej txheem, nrog rau cov txiaj ntsig ntxiv uas cov txheej txheem kuj yuav tiv taus cua sov.
Nws yog qhov tseeb tias qhov siv tau ntev dua, qhov ua tau zoo dua tuaj yeem ntxiv rau qhov ua tau zoo ntawm txhua lub tshuab, txo qhov xav tau kom tau txais cov khoom hloov tas li, ob qho tib si txuag nyiaj thiab lub sijhawm xav tau kom haum rau kev hloov pauv, thiab txo cov khoom pov tseg.Qhov no tseem yuav txo cov kev xav tau ntawm kev saib xyuas vim tias tsis tshua muaj kev ua txhaum ntawm cov cuab yeej siv, thiab tseem txo qis, lossis txawm tias tshem tawm, txhua qhov kev tsim khoom kim kim vim yog qhov tsis raug lossis kho.
Kev tu cov khoom siv kuj tuaj yeem txo qis hauv qee qhov vim tias PTFE lub tsho tiv no tsis yog ntub dej, yooj yim rau kev ntxuav tus kheej ntawm qhov chaw.
Thiab cov ntaub ntawv polymer tiav tuaj yeem pab rau ib puag ncig, vim hais tias, thaum siv rau cov ntaub, qhov ua tiav yuav tshem tawm cov dej thiab cov roj, txo qhov xav tau siv cov ziab qhuav, thiab cov ntaub yuav qhuav sai dua, siv lub zog tsawg dua nrog ziab kom qhuav, thiab kav ntev vim txo hnav.
Nrog rau qhov zoo ntxiv uas PTFE tsis muaj tshuaj lom, tsuas yog muaj kev txwv me me rau tib neeg los ntawm polymer fume fever (tsuas yog tias qhov kub ntawm ib lub lauj kaub polymer-coated ncav cuag 260 degrees C) thiab FDA pom zoo thiab zaub mov zoo, cov khoom no tiag tiag. muaj txiaj ntsig zoo hauv ntau qhov chaw sib txawv.NYEEM NTXIV SIV PTFEAs zoo li txheej txhua yam ntawm cov lauj kaub rau cov kabmob, PTFE kuj tseem siv los txwv cov kab nce toj phab ntsa raws li cov khoom siv yog li 'tsis-stick' uas kab (thiab txawm tias geckos) tsis tuaj yeem tuav.Cov polymer feem ntau siv los ua ib txheej ntawm catheters los tiv thaiv cov kab mob thiab kab mob thiab tseem siv los ua cov khoom siv hauv kev phais.
Koj yuav tau hnov txog Gore-Tex, thiab nws yog PTFE dua, lub sij hawm no ua ib daim nyias nyias, porous daim nyias nyias los ua breathable nag hnav, los yog rau kev kho mob cog, thaiv thaiv thiab sealants.
Ua rau lub siab xav tias PTFE tau pom los ntawm kev sib tsoo zoo siab xyoo 1938, nws nyuaj rau xav txog peb lub ntiaj teb niaj hnub no yam tsis muaj nws.
Yog tias koj xav siv PTFE rau ib qho ntawm koj cov haujlwm, lossis yog tias koj xav paub ntau ntxiv txog cov khoom ntawm PTFE, thov hu rau peb thiab peb zoo siab tham nrog koj los ntawm koj cov kev xaiv.
Post lub sij hawm: May-30-2020