PolyteTraflunneorneethylene (PTFE) wani carbon ne da kuma polymer mai ƙarfi. Wannan kayan yana da sunan mafi sani: Teflon.
Kaddarorin PTFE sun haɗa da:
Kyakkyawan kaddarorin injiniyoyi (<1%)
Sunadarai m jurucation juriya
Zafi juriya
Mafi ƙasƙanci coefends na tashin hankali
Abubuwan da ba su dace ba (suna tsayayya da ci gaba da yanayin zafi na 500 ° F (260 ° C)
Sa juriya
Babban Melting Point
Kyakkyawan kaddarorin PTFE suna ba da dama na aikace-aikace da yawa, kuma ana amfani da shi azaman haɗin gwiwar da ba itace ba don ɗakunan ajiya. Ptfe mafi kyawun juriya yana ba da damar haɗi tare da kayan aiki daban-daban ko dakatar da sarrafa kayan aiki, kamar jigilar kayan abinci, da sauransu.
Menene PTFE?
An gano Polytelflunoroorethylene a 1938. Asali ne aka gano ta Roy J. Furka na Amurka (1910-1994) lokacin da yake ƙoƙarin yin sabon carbon da kuma ingantaccen firiji. Mutane a lokacin ba za su yi tunanin wannan samfurin ba. M castalysts zai shafi kowane bangare na duniya.
A cikin 1941, Dupont samu Patent don wannan samfurin kuma rijiga alamar kasuwanci a karkashin sunan 'Teflon ' a 1944.
A zamanin yau, an yi amfani da polytorflunoroethylene a cikin fannoni da rayuwa. A cikin masana'antar abinci, an yi amfani da cointure na ptfe mai cike da kayan sanyi sosai; A cikin masana'antar sutura, saman mashahurin sanyi daga samfurori kamar helikon da carinthiya duk suna amfani da PTFE azaman mai rufi ko waje. , don cimma ƙarfin yin tsayayya da tsananin sanyi na -30 ° C; in the military field, PTFE materials with low loss, excellent dielectric properties, good consistency, stable chemical properties, and almost no moisture absorption are widely used in high radio frequency radar panels. A cikin likita, ana amfani da kayan PTFE da yawa a sassan jikin mutum.
Menene PTfe ya tsaya?
PTFE yana tsaye ga PolytTraflaflunoroethylene, kalmar sunadarai don polymer (C2F4) n.
Wannan kayan ya kasance gaba daya yana nufin duk wani jigon ptfe ptoropolmermer. Babban halaye na polytetraflafluoroowhylye sune kamar haka:
Matsakaicin zafin jiki na aiki (° C / ° C): 500/260
Tenarfin tensile a hutu (PSI): 4,000
Murmushin Mulki (KV / Mil): 3.7
Rabo: 2.16
Elongation a karya: 350%
Gate D Hardness: 54
Are ptfe ptfe polytettrafluorlethlolymer tare da sifofin da ke sama sun riga sunada alamomi marasa iyaka, manyan alamomin suna kamar haka:
Teeflon®: Chemours
Fluon®: Agc ltd
Dyneon®: 3m
Polyflon: daikin masana'antu Co., Ltd.
Algofl: Solvay Ltd.
Tsarin Ptfe
PolyteTraflunnehylene polymer ne da aka haɗa da carbon (c) da kuma fluroine (F) (F) (F) (F) (F) (c) tare da tsarin sunadarai (C2F4) N, inda N shine adadin raka'a monomer.
Dogon sarkar PTFE na ptfe na carbon atoms, kowannensu yana da alaƙa da atoms masu amfani da su.
Fluririne atoms kusan rufe farfajiya na carbon atoms na karkace prelymer sarkar. A carbon atoms samar da babban sarkar polymer sarkar. The Florine Cloorine ya samar da garkuwa mai mahaɗan-kamar a kusa da carbon atoms, wanda ya kiyaye carbon carbon na ciki.
Wannan tsari na musamman na kwayoyin zarra suna ba ptfe kaddarorin ta kwarai. Wannan tsarin kwayoyin yana ba da gudummawa ga Ptfe ɗin da ba a haɗa su jiki da kayan sunadarai ba.
Menene kayan teflon?
Teflon wani thermoplaller ne mai zafi, kuma Teflon acronym shine PTFE (polytTrafluorethylene).
Teflon alamar kasuwanci ce ta Chemours, duk da haka, ana iya siyan Ptfe daga kamfanoni wanin Chemours.
Teflon sanannen abu ne saboda ƙarancin tashin hankali, ƙarfin zazzabi mai zafi, da juriya na sinadarai.
Shin teeflon ptfe
Tabbas, Teflon abu ne mai polymer wanda aka jera daga tetrafluoroowhylene kuma wani nau'in kayan piflullualated. Sunan mai guba ne polytetraflafluorethylene (PTFE).
Teflon sunadarai na shayarwa na musamman ne. Tsarin kwayar halitta shine f (friorine atoms) yana maye gurbin duk h (hydrogen atoms) akan C Sarkar. A lokaci guda, saboda radius na cruorine charbine ya fi girma a cikin jirgin ruwan caromson kusan, saboda haka ba zai iya shirya a cikin jirgin ruwa ba, saboda haka ba zai zama mai lamba ba tare da interly eeterine atoms.
Tare da ƙaƙƙarfan shuki mai ƙarfi na atom, tsarin polymer polymer yana da ban tsoro idan aka kwatanta da sauran kayan.
Properties Teflon
PTFE ne polymer polymerized daga tetrafluorethylene monomer. Yana da m kox kama da pe. Yawan sa shine 2.2g / cm3 da farashinsa na shararsa ƙasa da kashi 0.01%.
Tsarin sunadarai na PTFER Polymer yayi kama da na PE, ban da cewa duk hydrogen atoms ana maye gurbinsu ta polyethylene an maye gurbinsu da atoms. Saboda babban ƙarfin kuzari da kuma tsayayyen aiki na CF, yana da kyakkyawan juriya na rigakafi (gami da Aqua Regia) ban da molten redium, oxdizy hydroxide sama da 300 ° C. Kazalika sakamakon tasirin oxidants, rage jami'ai da sauran kwayoyin halitta daban-daban.
The F atom a cikin ptfe molecule shine symmetrical, da abubuwan guda biyu a cikin CF ba tare da haɗin gwiwa ba. Babu zaɓaɓɓun 'yar karya a cikin kwayoyin, yin duk tsaka tsaki na. Sabili da haka, yana da kwarai kwarai da sinielric, kuma rufin wutar lantarki ba ya shafi tasirin yanayi da mita.
Teflon na Properties
Resersiwataccen ƙarfinsa ya fi 1017, hasara ta lalacewa karami ce, rushewarsa tana da kyau, kuma a san juriya ta wutar lantarki ta 250 ° C. Domin babu shaidu na hydrogen a cikin tsarin ptfe kwayoyin, saboda haka ta ɗauki matsayin crystallization yana da girma sosai (gabaɗaya crystallity shine 55% ~ 75%, wani lokacin yana da ptfe sosai. Zazzabinta na narke yana da 324C, zazzabi na lalata shine 415 ° C, kuma matsakaicin amfani da shi shine 250 ° C. Yana da ƙarfi zazzabi shine -190 ° C, kuma zazzage zafin jiki na 0.46mpa) shine 120c.
Kayan teflon yana da kyawawan kaddarorin injin. Stringarfinsa na ƙasa shine 21 ~ aya, yana ɗaukar ƙarfi shine 11 ~ 17pta, elongation shine 250% ~ 300%, da kuma mai tsauri da na ruwa, polyethylene. Mafi kyawun abubuwan tashin hankali na faranti yana da ƙarami.
PTFe mai tsabta yana da karancin ƙarfi, mara kyau san juriya da juriya na Creep. Yawancin lokaci ya zama dole don ƙara wasu barbashi mai ban sha'awa zuwa ptfe polymer na PTFE, kamar su Silulfofide, Briber fiber, da sauransu don inganta kaddarorin ta na inji. , Hakanan za'a iya fadada shi ta hanyar da sauran polymers kamar polypendlemes (PHB), polylene glycol (pufly), puffetlene copplymer (PFY), puffylene glycol (puflyethylene glycol (pufly), da sauransu.
Yaya Teflon ya yi
Tsarin masana'antu yana amfani da chloroform kamar ƙasa mai ɗorewa, yana amfani da acid anhydrourorm, kuma a ƙarshe yana amfani da ƙwayoyin zafi don samar da tetrafluoroowhylene.
Ana samar da Aokai ta amfani da dakatarwar polymeri na ko emulsion.
Shiri na Monomer Tetrafluoroowhylene
Masana'antu, ana amfani da chlesform azaman albarkatun ƙasa, ana amfani da acid anykerorm don yin amfani da pentralormy, kuma a ƙarshe tetrafluoroorethylene ana samar da shi ta hanyar ƙwayoyin zafi. Hakanan za'a iya samar da Tetrafluoroethylene ta hanyar maido da zinc tare da tetrafloodomanicloethane a yanayin zafi.
Shiri na polytetrashluoroowhylene
A cikin enamel ko sintles na bakin ciki, ana amfani da ruwa a matsayin matsakaici, ana amfani da ruwa a matsayin maimaitawa, ana amfani da gishiri a matsayin watsawa don samun kyakkyawan powdered polyethylene. Tetrafluorethylene.
Sanya ƙari daban-daban ga sinadan sinadarai, da kuma tetrafluoroowhylene monomer ya shiga cikin maganin polymerization a cikin tsarin gas. Daidaita zazzabi a cikin ketle zuwa 25 ° C, sannan a ƙara wani adadin mai kunnawa (metabisulise na sodium) don fara polymerization ta tsarin redox. A lokacin aiwatar da polymerization, ana ci gaba da kara monomer, kuma ana kiyaye matsin polymerization a 0.49 ~ 0.78psa. An tattara watsawa bayan da polymerization ne diluted zuwa wani maida hankali tare da ruwa, kuma an daidaita zafin jiki zuwa 15 ~ 20ºC. Bayan tarawa tare da motsa jiki na inji, an wanke shi da ruwa da bushe, wato, ana samun wannan samfurin azaman rijiyar granular.
Shin Teflon lafiya?
Teflon shafi kanta m: kayan teflon kanta ba shi da guba ba, ba zai lalata haɗarin kiwon lafiya ba. Wannan tabbas shine saboda tsarin kwayoyin halitta shine m baƙon abu a cikin magungunan gaske, balle ƙyama da jikin mutum ya narke.
Abubuwan da aka fi amfani da PTFies na PTFi na PTFial suna amfani dashi sosai a masana'antar sunadarai, man fetur, matani, takarda, takarda, kayan aiki, magunguna, kayan abinci, magunguna, kayan lantarki da kayan lantarki da kayan lantarki da kayan aikin lantarki.
Aikace-aikacen PolyteTraflaflunoroethylene (PTFE) a cikin kaddarorin anti-lalata:
Saboda lahani a cikin juriya na lalata, gilashin, allolin karfe da sauran kayan, matsi da asara da asarar da kafofin watsa labarai masu ban tsoro. Yayinda PTFE kayan yana da kyakkyawan juriya na lalata, polytetrafluoroethylene yana amfani da babban kayan masarufi a cikin man fetur, sunadarai, tace da sauran masana'antu.
Musamman takamaiman aikace-aikacen sun hada da: bututun mai, bututun mai, bututun mai don jigilar kayan masarufi, masu canzawa, towerarfin mai, masu canzawa, tuddai masu zafi. Aiwatar da kayan aikin sunadarai na da alama kamar mahaɗe da bawul suna da tasiri sosai akan ingancin da kayan aikin duka da kayan aikin. PTFE kayan da suna da halayen juriya na lalata, tsufa mai rauni, ƙarancin zafin jiki, yana dacewa da yanayin da ba a dace da yanayin yanayin ƙasa ba sama da 100 °. Irin suttes don groved flanges na injuna, masu musayar zafi, tasoshin ruwa, bawul na diamita, tsintsiya, kayan kwalliya, bawul.
2.Da karancin kayan aikin polytetraflaflaflohylene (PTFE) ana amfani dashi a aikace-aikacen saukarwa.
Abubuwan da aka saba da su na wasu kayan aiki ba su dace da lubrication ba, waɗanda ke sa kayan aikin manya, da sauran abubuwa, da sauran abubuwa. Wannan saboda rikici madaidaicin wannan kayan shine mafi ƙasƙanci a tsakanin sanannun kayan m. Musamman abubuwan amfanin sa sun hada da abubuwan amfani don kayan aikin sunadarai, kayan aikin takarda, kamar yadda hanyoyin Jagorar Jagora, kuma jagorar zobba. Ana amfani dasu sosai a cikin ayyukan ginin na jama'a kamar yadda tallafi na tallafi don gadoji, rami matattara rufin gidajen rufin, bututun manoma, da tankuna na ajiya. Tubalan, kazalika da aka yi amfani da shi azaman gada goyon baya da gada Swivels, da sauransu.
3.Aplication na PolyteTraflaflawlunoroethylene (PTFE) a cikin lantarki da aikace-aikacen lantarki.
Rashin asarar da aka sanya da ƙananan allura a cikin kayan ptfe kayan za a sanya shi a cikin micro Motors don amfani da su a cikin micro Motors, na'urorin sarrafawa, insulting igiyoyi, waɗanda aka haɗa da masu canzawa. Hakanan yana daya daga cikin kayan da ba makawa don abubuwan kayan aikin lantarki na masana'antu kamar Aerospace. Yin amfani da filayen filastik filastik yana da babban ƙarfi ga oxygen da babban ƙarfin tururi. Wannan za a iya amfani da wannan yanayin karamin rauni na ƙaramin ƙarfi don ƙirƙirar na'urori masu sanyin oxygen. Halayen da suka haifar da ɗaukar hoto na Polar da matsanancin matsin lamba, masu magana, sassan kan robroots, da sauransu, kuma ana iya amfani da karfin robobi. Halayen manyan aiki na iya yin zaruruwa na ganima.
4.Amma na PolyteTraflaflunoroethylene (PTFE) a cikin maganin likita.
Opended PTFE PITFE shine kawai inert kuma yana da karfin yarda nazarin halittu. Ba zai haifar da kin amincewa da jiki ba kuma ba shi da tasirin hakki a jikin mutum. Ana iya haifuwa ta kowace hanya. Bangaren microporous yana ba da damar amfani da hanyoyin samar da jinsi iri-iri, gami da jijiyoyin jini da tiyata don tiyata ta jijiyoyin jini.
5. Farmatattun kaddarorin tsarkakewa na polytetraflafluorethylene (PTFE).
Abubuwan PTFE suna da ƙaramin tashin tashin hankali a cikin m kayan kuma baya bi kowane abu. Hakanan yana da halaye na manyan da ƙananan zazzabi da ƙarancin sinadarai, yana sa ya dace domin aikace-aikace kamar masana'antu. An yi amfani da kwanon da ba a yi amfani da shi ba a cikin aikace-aikacen rigakafin sanda. Tsarin anti-m yakan haɗa da nau'ikan biyu: shigar da takardar PTFE akan substrate da sanya PTFE COIND ko varnish da aka haɗa tare da gilashi a kan substrate ta hanyar zafi shrinkage.
Kodayake kayan aikin PTFE har yanzu suna da matsalar babban wahala a walda, tare da ci gaban fasaha, sabbin hanyoyin samar da kayayyaki za su iya magance wuraren jin zafi da kuma amfani da PTFE zuwa kewayon filayen.
Aoka ptfe malami ne PTFE mai tsattsauran masana'antun masana'anta da masu kaya a China, musamman wajen samar da Ptfe m tef tef, Ptfe isar da bel, Ptfe mel . Don siyan ko whleslesale ptfe mai rufi na fiberglass kayayyaki. Farkon nisa, kauri, launuka akwai launuka.
