Polytetrafluoro solmblene (PTF) ndi kaboni komanso mafuta a fluorine. Izi zili ndi dzina lodziwika bwino: Teflon.
Katundu wa PTY
Katundu wabwino kwambiri (<1%)
Kukaniza kwa mankhwala osagwirizana
Kukana kutentha
Zotsika kwambiri za mikangano
Katundu wopanda matrati (amalimbana ndi kutentha kosalekeza kwa 500 ° F (260 ° C))
Kuvala kukana
Malo osungunuka
Zosangalatsa za PTF zimapatsanso mapulogalamu osiyanasiyana, ndipo zimagwiritsidwa ntchito kwambiri ngati zokutira zopanda pake za cookware. Kuvala bwino kwa Ptke kukana kumathandizira kuti iphatikizidwe ndi zinthu zosiyanasiyana kudzera mu emulsion polymerization yopanga mafakitale, ma alamba osasinthika, etc.
Kodi PTF ndi chiyani?
Polytetrafluofenthyenene adapezeka mu 1938. Poyambirira zidapezeka ndi Merist wa ku America Roy J. Pluns94) pomwe amayesera kukonza kaboni yatsopano. Anthu panthawiyo sakanaganiza za izi. Ma caratays achilendo adzakhudza mbali iliyonse ya dziko lapansi.
Mu 1941, Dupross adapeza patent pa cholembera ichi ndikulembetsa chizindikiro pansi pa dzinalo 'THFLON ' mu 1944.
Masiku ano, polytetrafluofenth wagwiritsidwa ntchito kwambiri m'minda yambiri yopanga ndi moyo. M'makampani olimbikitsa, cooki yophika ya PTF imagwiritsidwa ntchito kwambiri; Mu makampani ojambula, zovala zapamwamba kwambiri zochokera ku mtundu monga helikon ndi cartialia onse amagwiritsa ntchito potfe ngati chitoliro kapena kunja. , kuti akwaniritse kuthekera kothetsa kuzizira kwambiri -3 ° C; Mumunda wankhondo, zida za PTFF ndi kutayika kochepa, katundu wambiri, kusasinthika kwambiri, mayamwidwe okhazikika, ndipo pafupifupi mayamwidwe ambiri amagwiritsidwa ntchito kwambiri papepala la radiquar. Mu gawo la zamankhwala, zida za PTFF imagwiritsidwanso ntchito kwambiri m'magawo a thupi.
Kodi Kuyimira PTF?
PTF imayimira polytetrafluorothylene, dzina la mankhwala kwa polymer (C2F4) n.
Izi nthawi zambiri zimatanthauzira za ftferopolymer yopanga ftfiololymer. Makhalidwe Akulua Polytetrafluofentylene ali motere:
Kutentha kwambiri kogwiritsira ntchito (° F / ° C): 500/260
Mphamvu yakutali kuthyola (PSI): 4,000
Seelectric nthawi zonse (KV / Mil): 3.7
Gawo: 2.16
Elongition ku Break: 350%
Shrou d Huness: 54
The PTFFE Polytetrafentlentylemer yopanga fluropolymer yopangidwa ndi izi ili kale ndi mitundu yambiri, mitundu yayikulu ili motere:
Teflon®: Mankhwala
Fluon ®: Agc Ltd
Dyneon ®: 3m
Polyflon: Daikin Fakitala Co., Ltd.
Algoflon: Solvay Ltd.
Kapangidwe ka mankhwala a PTF
Polytetrafluoro 11nlene ndi polymer polymer yopangidwa ndi kaboni (c) ma atoorine (f) maatomu, ndi njira ya mankhwala (C2F4) n, komwe n ndi nambala ya onomer.
Kapangidwe ka PTF akhoza kufotokozedwa monga: -CF2-CF2-CF2-CF2-
Ma ma atoleki am'tali kwambiri a PTF amapangidwa ndi ma atomu a kaboni, omwe aliyense amalumikizidwa ndi ma atomu awiri a fluorine.
Ma atomu a fluorine pafupifupi pachikuto cha ma atomu a kaboni amatoma. Atomu a Carbon amapanga unyolo waukulu wa unyolo wa polymer. Ma atomu a fluorine amapanga mawonekedwe onga chikopa mozungulira ma atomu a kaboni, yomwe imateteza ma atomu amkati.
Makonzedwe apadera a matomu amapereka PTF PTFARD AYELLESTED. Kupanga kwa maselo kumeneku kumapangitsa kuti PTFFASTE yopanda thupi komanso mankhwala.
Kodi ma teflon ndi ati?
Teflon ndi fluroplastic fluoropolymer, ndipo teflon ucfr ndi ptfe (polytetrafluorothylene).
Teflon ndi chizindikiro cha chemlom, komabe, ptfe imatha kugulidwanso kwa makampani ena kupatula ma comlom.
Teflon ndi nkhani yotchuka chifukwa cha kukangana kwake kochepa, kutentha kwambiri kukana, ndi kukana kwa mankhwala.
Ndi teflon ptfe
Zachidziwikire, teflon ndi zinthu za polymer polymer kuchokera ku tetraflofethylene ndipo ndi mtundu wa zinthu zoweta. Dzina lake la mankhwala ndi polytetrafluorothylene (ptfe).
Kapangidwe kake ka teflon ndi wapadera kwambiri. Kupanga kwa maselo ndichakuti f (ma atomu a fluorine) amasintha ma atomu onse a H (Hydrogen) pa unyolo. Nthawi yomweyo, chifukwa ma radius wa atomu wa fluorine ndi wamkulu kuposa ma atomu a kaboni ndi akuluakulu, kotero kuti saloledwa ndi ma atomu a haidrogen omwe amangolumikizana ndi maatomu a fluorine.
Ndi chotchinga champhamvu cha atoorine atomu, kapangidwe ka polymer polymer kumakhala kokhazikika poyerekeza ndi zinthu zina.
Teflon katundu
Ptfe ndi polymer polymer kuchokera ku Tetrafluofentlene monomer. Ndiwowonekera kapena opera sera ofanana ndi pe. Kuchulukitsa kwake ndi 2.2g / cm3 ndi njira yake yotsatsira madzi siochepera 0.01%.
Kapangidwe ka mankhwala a PTF ku Polider ndi ofanana ndi sawu, kupatula ma atomu onse haidrojeni ku polyethylene amasinthidwa ndi ma atomu a fluorine. Chifukwa cha kuchuluka kwa mgwirizano wapamwamba komanso magwiridwe okhazikika a CF Barn, imakhala ndi mankhwala abwino kwambiri a mankhwala ndipo amatha kupirira zitsulo zolimba (kuphatikizapo aquamu) kupatula Sol Collia, ndi sodium hydroxide kuposa 300 ° C. Komanso zotsatira za oxidants okwera, kuchepetsa mankhwala ndi osiyanasiyana oyipitsidwa.
The F atomu molekyulu ya PTF ndi yodziwika bwino, ndipo zinthu ziwiri mu CF zimamangidwa mosavuta. Palibe ma elekitoni aulere mu molekyulu, ndikupanga molekyulu onse osalowerera ndale. Chifukwa chake, ili ndi kuchuluka kwambiri, ndipo kusokonezeka kwake sikukhudzidwa ndi chilengedwe komanso pafupipafupi.
Teflon thupi
Kuchuluka kwake kuli koposa 1017, kutayika kwake kwambiri, kuswa kuswa kwapadera ndikokwera, kuswana kwake kwa arc ndikwabwino, ndipo kumatha kugwira ntchito kumagetsi 250 c. Chifukwa kulibe ma hydrogen zomangira za PTFE Kutentha kwake kusungunuka ndi 324c, kutentha kwake kumakhala 415 ° C, kutentha kwake kwakukulu ndi 250 ° C. Ndiwophweka kutentha ndi -190 ° C, ndi kutentha kutentha kutentha (pansi pa 0.4MPA) ndi 120c.
Thupi la Teflon lili ndi makina abwino. Mphamvu zake zamisala ndi 21 ~ 28mA, zokhala ndi mphamvu ndi 11 ~ 5% ~ amphamvu ndi ma polylonmehyde, ndi polydelsinne. Kugwirizana kwa mikangano ya mapulaneti ozizira ndi ochepa.
Ptife wopanda pake ali ndi mphamvu zochepa, osauka amathedwa kukana ndi kukana kwamphamvu. Nthawi zambiri zimakhala zofunikira kuwonjezera pa tinthu tating'onoting'ono tomwe timapanga, monga graphite, gulu lazosavomerezeka, aluminiyamu fibedi, malonjedwe. , ndipo mutha kukulitsidwanso pochita mgwirizano ndi ma poyinter ena monga polyphese (pfs), polyethylene glycol (prosthylene kutentha kwake, kukonzanso kukana kwake kusiyanasiyana.
Chifukwa cha zofooka zomwe zimatsutsana ndi mphira, galasi, chitsulo, zida zina, ndizovuta kukumana ndi kutentha komwe kumakhala kutentha, kukakamizidwa ndi zotayika za mankhwala ali owopsa. Ngakhale kuti PTFF.
Ntchito zapaderazo zikuphatikiza: mapaipi otumiza, mapaipi omata, mapaipi owoneka bwino kwambiri pakugubuduza magetsi, malo ozizira, nsanja ndi matabwa ndi akasinja. Kuchita kwamankhwala kumasindikizidwa monga zingwe ndi zigwa zimakhudza kwambiri luso ndi magwiridwe antchito ndi zida zonse. Zinthu za PTFF ili ndi machitidwe a chipongwe, kukanidwa pang'ono, kusama pang'ono komanso kusanja kwakukulu, komanso kututa kwakukulu kwa zisindikizo zokhala ndi zinthu zambiri zosemphana ndi 100 °. Monga zisindikizo zokongoletsera zamakina, zosintha kutentha, ziwiya zazitali, ma sharves, mabowo akuluakulu, ndodo zomangira, etc.
2.Muna wocheperako wa polytetrafluoro solntlene (PTF) amagwiritsidwa ntchito popanga mapulogalamu.
Chingwe china cha zida zina sichoyenera kupatsa mafuta, monga momwe zinthu zopangira mafuta zimasungunuka ndikumakhala ndi zida zodzaza ndi mafuta opangira mafuta. Izi zili choncho chifukwa chakuti zosonyeza kuti zosonyeza zinthuzi ndi zotsika kwambiri pakati pa zida zodziwika. Kugwiritsa ntchito kwake kwina kumaphatikizapo mapepala a zida zamapepala, makina opanga mapepala, ndi makina azaulimi, monga mphete za piston, chida chowongolera njanji, komanso mphete zowongolera. Amagwiritsidwa ntchito kwambiri pantchito zomanga za Clana monga othandizira mabatani, padenga la chitsulo chimathamangitsa, mapaipi akuluakulu a mankhwala, komanso akasinja osungira. Mabatani, komanso kugwiritsidwa ntchito ngati chindapusa cha Bridge komanso Stonels Switsls, etc.
3.Pestictions of Polytetrafluorothynene (PTF) mu zamagetsi ndi zamagetsi.
Kuwonongeka kocheperako komanso zazing'onoting'ono kwazinthu zomwe zimapangitsa kuti zipangidwe m'matawa, mapepala osinthika, ndi zingwe zosinthika, zotsekemera, mota. Ilinso ndi imodzi mwazinthu zofunika kwambiri za mafakitale a mafakitale monga Aerospace ndi Aerospace. Kugwiritsa ntchito mafilimu am'mapulasiti a fluorine kuli ndi zowonekera kwambiri kwa oxygen ndi kuwonekera kwambiri kwa madzi nthunzi. Kusankha koyenera kwa kukhazikika kochepa kumatha kugwiritsidwa ntchito popanga masensa a okosijeni. Makhalidwe a fluorlapics omwe amachititsa kuti polar depation yopanda kutentha kwambiri komanso kukakamizidwa kwambiri kumatha kugwiritsidwa ntchito popanga maikolofoni, olankhula, ndi zina zotsitsa zitha kugwiritsidwa ntchito. Makhalidwe a kuchita bwino amatha kupanga ulusi wowoneka bwino.
4.Applion ya polytetrafluorothylene (ptfe) mu mankhwala azachipatala.
Zinthu zokutira za PTFF yowonjezereka ndizopendekera ndipo zimakhala ndi mphamvu zothandizira kwambiri. Siziyambitsa kukana ndi thupi ndipo ilibe zotsatira zoyipa kwa thupi la munthu. Itha kukhutitsidwa ndi njira iliyonse. Kapangidwe kakang'ono kamalola kugwiritsa ntchito njira zosiyanasiyana kukonzanso, kuphatikizapo mitsempha yamagazi ndi zigamba zofewa za minofu komanso zoperewera kwa vascla, mtima, General ndi Orthopedic maopareshoni.
5.Pappestion ya anti-ndodo ya polytetrafluorothylene (PTF).
Zinthu za PTFF ili ndi zovuta zazing'ono kwambiri pakati pa zida zolimba ndipo sizimatsatira chilichonse. Ilinso ndi mapangidwe a kutentha kwambiri komanso kuchepa kwa mapangidwe azamankhwala, ndikupangitsa kukhala koyenera kwa mapulogalamu monga kupanga. Nthambi zophatikizika zimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito magwiridwe antchito. Njira yotsutsa-zomatira makamaka imaphatikizapo mitundu iwiri: kukhazikitsa pepala la PTFF pa gawo lapansi ndikuyika PTFF yokutira kapena varnish yopanga ndi galasi pagawo lapansi mwa kutentha.
Ngakhale zida za PTFF ilinso ndi vuto la zovuta zambiri potchere, ndi njira zatsopano, njira zatsopano zothetsera zopweteka za PTF ndikugwiritsa ntchito PTF pagawo lonse.
