PTFE Polytetrafluoroethylene yog kev ua tau zoo, ntau yam fluoropolymers uas muaj cov fluoropolymer tau hloov kho fluoropolymer ib txwm thiab txoj kev rau Ntau yam ntawm cov ntawv thov .
Ib qho ntawm cov ntawv thov ntawm PTFE cov ntaub ntawv suav nrog chav ua noj ua noj ua haus, nws feem ntau yog siv rau kev siv tshuaj lom neeg thiab cov khoom siv tshuaj lom neeg thiab cov khoom noj kom haum rau cov tshuaj thiab cov tshuaj corrosive {}}
PTFE tau ua li cas?
Duab kev tsim khoom ntawm PTFE zoo ib yam li lwm yam polymer . nws yog manufacturizing ntawm kev sib tw hauv ib qho nruab nrab aqueous.
Cov qauv siv tshuaj ntawm PTFE zoo tib yam rau cov polyethylene; tsuas yog qhov tseem ceeb ntawm hydrogen atoms yog hloov tag nrho cov fluorine . Txawm li cas los xij, cov qauv ntawm kev ua PE thiab PTFE muaj sib txawv heev.
Cov tshuaj fluorine atoms yog loj loj thiab ua ib qho kev sib tw thiab cov tshuaj carracule zoo nyob ib ncig ntawm cov tshuaj carertness, thiab ruaj khov.
Like many other great discoveries, polytetrafluoroethylene was discovered by accident. Roy J. Plunkett first discovered it in 1938. At the time, he was working for Dupont in New Jersey. Plunkett's original intention was to create a new chlorofluorocarbon refrigerant. Txawm li cas los xij, qhov ntws ntawm polytetrospaenoroethylene roj nyob rau hauv lub siab lub raj mis nres ua ntej qhov hnyav ntawm lub siab tso rau "khoob" teeb liab.
Tab sis thaum plunkett ntsuas tus nqi ntawm cov roj siv los ntawm lub raj mis, nws tau xav txog qhov hnyav thiab thaum kawg txiav txim siab nqa lub raj mis .
Nws pom tias sab hauv lub raj mis tau coated nrog cov khoom dawb waxy smar
Cov khoom siv tshiab tau muaj patented los ntawm Kinsetic Tshuaj Plua Plab hauv 1941 ua cov cim fluorining tshiab, thiab cov neeg ua yeeb yaj kiab zoo nkauj} Feem ntau cov khoom lag luam hauv tsev tsim los ntawm ntau txhiab tus neeg tsim khoom thoob ntiaj teb .
Cov Khoom Siv thiab Kev Ua Tau Zoo ntawm PTFE -
PTFE muaj nyob rau hauv peb cov ntaub ntawv tseem ceeb - granules, kev tsis sib xws dej, thiab hmoov nplua.
Cov khoom siv PTFE Granular yog tsim los ntawm kev ncua cov polymerization hauv ib qho nruab nrab ntawm cov khoom siv hluav taws xob feem ntau yog siv hauv kev sib tsoo, yog cov kab sib txuas nrog RAM}
Dej-based PTFE Dispersions Siv tib yam li polymerization, nrog ntau dua dispersant thiab nplawm cov txheej txheem ua ke yog feem ntau ntawm cov txheej txheem thiab zaj duab xis Casting Txoj Kev.
Cov hmoov ptfe me me yog cov tshuaj pleev xim dawb huv los ntawm cov plaub ya ri los yog nrog cov khoom sib xyaw ua ke los txhim kho cov hnav tsis kam txhim kho.
Lwm qhov khoom siv tseem ceeb ntawm PTFE suav nrog cov khoom siab zoo heev thiab cov hluav taws xob ({{{{{{{{}} rau 260 degree).
PTFE yog ib qho ntawm cov ntaub ntawv txhim khu kev qha tshaj plaws . Nws yog oxygen fluorine (ntawm cov tshuaj lom neeg organ), thiab golyous fluoratures .
PTFE cov khoom siv neeg kho tshuab kuj tseem zoo li lwm txoj kev ua kom zoo rau kev ua haujlwm ntawm chav tsev kub. Cov kev ua tau zoo ntawm kev ua haujlwm zoo li cov khoom siv hluav taws xob zoo li cov khoom siv xws li, kub siab, txias tus nqi, thiab lwm yam {{}}} pa hluav taws xob cov khoom loj thiab cov pob txha loj tuaj yeem cuam tshuam rau cov tshuab khoom siv tshuab ua {}}
PTFE muaj cov khoom hluav taws xob uas muaj hluav taws xob, cov dielectric tas li thiab diteAtic contant (2}} 0) yog qhov tshwm sim ntawm cov macromolecules.
Cov khoom siv PTFE tseem qhia tau zoo thermal cov khoom, tsis muaj qhov tseem ceeb demadation qis dua 440 degree.
Nws tseem raug rau kev ua kom muaj kev cuam tshuam hauv cov pa thiab tawm tsam los ntawm hluav taws xob, pib ntawm qhov koob tshuaj ntawm 0 {} 02 mrad.
