Teflon imadziwikanso kuti polytetrafluoroethylene (chidule cha Chingerezi teflon kapena [PTFE, F4]), yomwe imadziwikanso kuti "mfumu yapulasitiki", komanso imadziwikanso kuti "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon" "Teflon", "Teflon", "Teflon", "Teflon", "Teflon" ndi "Teflon". Ndi polima pawiri yopangidwa ndi tetrafluoroethylene polima, ndipo kapangidwe kake ndi kophweka monga --cf2-cf2 -]n-.

Polytetrafluoroethylene, yomwe imadziwika bwino ngati zokutira zopanda ndodo kapena zinthu zosavuta kuyeretsa. Nkhaniyi ali ndi makhalidwe a asidi ndi alkali kukana, kukana zosungunulira zosiyanasiyana organic, ndipo pafupifupi insoluble mu zosungunulira zonse. Panthawi imodzimodziyo, polytetrafluoroethylene ili ndi makhalidwe a kutentha kwapamwamba, kokwanira kwake kwa mikangano kumakhala kochepa kwambiri, kotero kungagwiritsidwe ntchito popaka mafuta, komanso kukhala zokutira bwino kuti zikhale zosavuta kuyeretsa mkati mwa mipope yamadzi.

Teflon plating makamaka zimatengera mtundu wa njira mukufuna kudziwa momwe kupopera mbewu mankhwalawa. Chofunika kwambiri ndi chakuti chophimba cha Teflon chiyenera kuphikidwa pa kutentha kwakukulu chisanayambe kugwiritsidwa ntchito.

Makhalidwe a Teflon:

Zosamatira: Pafupifupi zinthu zonse sizigwirizana ndi zokutira za teflon.

Kukana kutentha kochepa: kulimba kwa makina abwino; Ngakhale kutentha kutsika mpaka -196 ° C, kutalika kwa 5% kumatha kusungidwa. Ikadali yofewa pa -100 madigiri.

Kukana kutentha kwakukulu: Kupaka kwa polytetrafluoroethylene kumakhala ndi kutentha kwakukulu komanso kukana kutentha kochepa. Imatha kupirira kutentha kwambiri mpaka 300 ° C kwakanthawi kochepa, nthawi zambiri imatha kugwiritsidwa ntchito mosalekeza pakati pa 240 ° C ndi 260 ° C, ndipo imakhala ndi bata lalikulu lamafuta, imatha kugwira ntchito pazizindikiro zozizira popanda kusungunuka, ndipo siyisungunuka kutentha kwambiri. .

Mafuta okwera kwambiri: Ndiwotsika kwambiri pakulimbana ndi zinthu zolimba. Ili ndi coefficient yotsika kwambiri (0.04) pakati pa mapulasitiki. Wosalala kuposa ayezi.

Kukana kwachinyontho: pamwamba pa PTFE zokutira sizimadetsedwa ndi madzi ndi mafuta, ndipo sikophweka kumamatira ku yankho pa ntchito yopanga. Ngati pali dothi laling'ono, likhoza kuchotsedwa mwa kungopukuta. Kupuma kwakanthawi kumapulumutsa nthawi ndikuwongolera magwiridwe antchito.

Kukana kuvala: Imakhala ndi kukana kovala bwino pansi pa katundu wambiri. Pansi pa katundu wina, imakhala ndi ubwino wapawiri wotsutsana ndi kuvala komanso kusamata.

Kukana dzimbiri: polytetrafluoroethylene pafupifupi wopanda mankhwala kuukira, ndipo akhoza kupirira zidulo amphamvu (kuphatikizapo aqua aqua), oxidants amphamvu, wothandizila kuchepetsa ndi zosiyanasiyana zosungunulira organic kuwonjezera kusungunuka zitsulo zamchere, fluorinated TV ndi sodium hydroxide pamwamba 300 ° C, ndi imatha kuteteza ziwalo zamtundu uliwonse wa dzimbiri.

Kukana kukalamba: kukana kwa radiation ndi kutsika kochepa: kuwonetseredwa kwanthawi yayitali kumlengalenga, pamwamba ndi magwiridwe antchito sizisintha.

Zosayaka: index ya malire a oxygen ndi pansi pa 90.

Asidi ndi alkali kukana: osasungunuka mu zidulo zolimba, maziko amphamvu ndi zosungunulira za organic (kuphatikizapo magic acid, ndiko kuti, fluoroantimonic acid).

Kukana kwa okosijeni: kugonjetsedwa ndi dzimbiri ndi ma okosijeni amphamvu.

Kusungunula: Kuchita bwino kwamagetsi, ndi chinthu chabwino chotchinjiriza cha C-class, wosanjikiza wa nyuzipepala wandiweyani amatha kuletsa kuthamanga kwambiri kwa 1500V. Kutsekemera kwake kwa magetsi sikukhudzidwa ndi kutentha. Kutayika kwa dielectric nthawi zonse ndi dielectric ndizotsika pafupipafupi, ndipo voteji yosweka, kukana kwa voliyumu ndi kukana kwa arc ndizokwera.

Acid-base: neutral.