Chii chinonzi ptfe (polytetrafluorohyle)? Maonero: 0 Munyori: Webhusaiti Editor Shirish Nguva: 2023-11-10-10 Mavambo: Saiti
Bvunza
PolytetraFluorootherylene (PTFE) ndeye kabhoni uye fluorine polymer. Izvi zvinyorwa zvine zita racho rinonyanya kuzivikanwa: Teflon.
Zvivakwa zvePTFE zvinosanganisira:
Zvakanakisa Mechancal Properties (<1%)
Chemical Inertness Corrostion Resserance
Kupisa kupokana
Yakaderera coefficients yekukakavara
Nzvimbo dzisiri dzezvimisikidzo (inokatyamadza ichiramba yakanyanya kupisa kwe500 ° F (260 ° C))
Pfeka kuramba
Yakanyanya Rollting Point
Izvo zvakanakisa zvivakwa zvePTFE zvinopa iyo yakakura huwandu hwekushandisa, uye zvinowanzoshandiswa seisiri-tsvimbo inovhara cookware. PTFE iri nani kupfeka kurwisa kunobvumira kuti ibatwe nezvinhu zvakasiyana-siyana kuburikidza nekumisikidzwa kwemagetsi ekugadzira.
PolytetraFluorohylehlene yakawanikwa muna 1938. Izvo zvaiwanikwa neAmerican chemist Roy J. Plunkett (1910-1994) paakanga achiedza kugadzira kabhoni uye fluorine carrigether. Vanhu panguva iyoyo vangadai vasina kufunga nezve ichi chakajairika chigadzirwa. Zvinoshamisa zvechikoro zvinokanganisa zvese zvepasirese.
Muna 1941, Dupont akawana patent yechigadzirwa ichi uye akanyoresa chiratidzo pasi pezita 'teflon ' muna 1944.
Mazuva ano, polytetrafluoroothery yakashandiswa zvakanyanya muminda yakawanda yekugadzira nehupenyu. Mune indasitiri yekununura, PTFE yakachekwa cookware inoshandiswa zvakanyanya; Muindasitiri wezvipfeko, pamusoro pekutonhora-kwechiratidzo-humbowo zvipfeko kubva kune brands dzakadai saHelikon uye Carinthia zvese zvinoshandisa ptfe seCoctor kana Out layer. , kuitira kuti uwane kugona kutsungirira kutonhora kwakanyanya kwe -30 ° C; Mumunda wechiuto, zvinhu zvePtfe zvine midziyo yakaderera, zvakanakisa dielectric zvivakwa, kusakwana kwemakemikari, uye hazvinganyoreri mari inoshandiswa zvakanyanya mune yakanyanya redhiyo redar radar radar radar. Muchiremba wezvokurapa, zvinhu zveptfe zvinowanzoshandiswa zvakanyanya munzvimbo dzomuviri dzemuviri.
Ptfe inomira yePolytetraFluoroethyle, iyo kemikari yePolymer (C2F4) n.
Izvi zvinhu zvinowanzoreva chero yakagadzirirwa ptfe synthetic fluoropolymer. Hunhu hukuru hwePolytetrafluoroeterylehyle zviri seinotevera:
Maximum Inoshanda tembiricha (° F / ° C): 500/260
Simba resimba rekutya (PSI): 4,000
Dielectric nguva dzose (KV / mil): 3.7
Chikamu: 2.16
ELOLOLOLINGTU YAKABUDA: 350%
Shore D Hardness: 54
Iyo yakashandiswa zvakanyanya PTFE PTFETRAFLEFLUOROETHELEYLECHELELELELELELELELEFOLYMELYMELE NEMUFANANIDZO AIVA NEZVINHU ZVINOGONESESESA, MABHUKU ANOGADZIRA KUTI:
PolytetraFluorohlene in the linear polymer yakaumbwa neCarbon (c) uye fluorine (f) maatomu, nekemakemikari formula (c2f4) n, uko kune nhamba yeMonomer Units.
Iyo chimiro chePTFE inogona kutaurwa se: -CF2-cf2-cf2-cf2-
Iyo tambo yakareba yemamoreti ePTFE yakagadzirwa nekabhoni maatomu, imwe neimwe yakabatana neye maviri maatomu euto.
Fluorine maatomu anenge achipotsa fukidza pamusoro pekaroni maatomu emuchina wePolymer. Iyo kabhoni maatomu inoumba ketani huru yePolymer Chain. Iwo maatomu euto anoumba nhovo-semahombekombe akakomberedza maatomu, ayo anochengetedza maatomu emukati kabhoni.
Urongwa uhwu hwakasarudzika hwematomu anopa PTFE YEMAHARA YEMAHARA. Iyi molecular chimiro chinopa kune yePTFE isina kubhadharwa yemuviri uye makemikari zvivakwa.
Chii chinonzi teflon zvinyorwa? Teflon is a thermoplastic fluoropolymer, uye teflon acronym ndeye ptfe (polytetrafluorolene).
Teflon chiratidzo cheComurs, zvisinei, ptfe inogona zvakare kutengwa kubva kumakambani kunze kwemakekiri.
Teflon chinhu chakakurumbira chakakonzerwa nekukakavara kwayo, kupisa kwakanyanya, uye kurwisa kwemakemikari.
Ehezve, Teflon inzvimbo yePolymer Polymerized kubva kuTetrafluorootherylene uye rudzi rwezvinhu zvemafuta. Zita rayo remakemikari iri polytetrafluoroetherylene (PTFF).
Teflon Chemical chimiro chakasiyana chaizvo. Iyo molecular chimiro ndeyekuti f (fluorine maatomu) inotsiva ese H (hydrogen maatomu) pane cket. Panguva imwecheteyo, nekuti radius yeTom yakakura kupfuura iyo radius yeatomu, saka maatomu ekupedzisira anenge achiunganidza maatomu emari, kuti nyika dzekunze dzinogona kusangana neinterner cluorine maatomu.
Neine yakasimba fluorine atom barriers, iyo teflon polymer chimiro chakagadzikana kana ichigadziriswa pane zvimwe zvinhu.
PTFE iyo polymer polymerized kubva kuTetrafluorootherylene Monomer. Iyo inoonekera kana opaque wax yakafanana nePE. Yayo density ndeye 2.2G / cm3 uye iyo mvura yekunyora yemvura iri pasi pe 0,01%.
Chemical chimiro chePTFE Polymer yakafanana neye pe, kunze kwekuti zvese mahyomy maatomu muPolyethyle anotsiviwa neFluorine maatomu. Nekuda kwesimba rakakwirira simba uye kugadzikana kwekuita kweCf bond, iyo inokonzeresa Corrostion Yese uye inogona kutsungirira Aquia yakasimba (inosanganisira Aquisa yekare) kunze kwekunge mola realkali simbi, oxidizing media, uye sodium hydroxide pamusoro pe300 ° C. Pamwe nemhedzisiro yeiyo yakasimba oxidants, kuderedza vamiririri uye dzakasiyana-siyana organic sol sol.
Iyo Fatomu mumolecule yemorekuru, uye zvinhu zviviri zviri muCF musangano wakabatikana. Iko hakuna magetsi emahara mumorekuru, achigadzira iyo monocule isina kusarerekera. Naizvozvo, ine zvinhu zvakanakisa dielectric, uye kusimbisa kwemagetsi hakukanganiswe ne pesvedzero yenzvimbo uye kuwanda.
Teflon zvivakwa zvemuviri
Kupesana kwaro kukuru kwakakura kupfuura 1017, kurasikirwa kwayo kudiki kwechidiki, kuparadzwa kwayo kwekufamba kwakakwirira, kurwisa arc kwakanaka, uye kunogona kushanda munzvimbo yemagetsi ye 250 ° C. Nekuti hapana hydrogen zvisungo muPTFE molecular chimiro, saka crystalluzical, saka iyo crystallinity iri 55% ~ 75%, inokwira se9%), inogadzira ptfe zvakanyanya kupisa-kupokana. Tembiricha yayo yekumbera ndeye 324c, tembiriti yayo yekushambadza ndeye 415 ° C, uye yayo yepamusoro yekushandisa tembiricha ndeye 250 ° C. Iyo brittle tembiricha iri -190 ° C, uye kupisa kukanganisa kukanganisa (pasi pe1.46mpa mamiriro) ndeye 120c.
Teflon zvinyorwa zvine yakanaka michina. Simba rayo rine makore 21 ~ 28mpa, kukotama simba riri 11 ~ 14mpa, leongation Iyo cocaket yekukakavara kwemapuranga anotonhorera idiki.
PTFE PTFE ine simba rakaderera, murombo pfeka kurwisa uye kushaya urombo kupokana. Izvo zvinowanzo kuve zvakafanira kuwedzera zvimwe zvechisimbiso kune iyo PTFE Polymer, yakadai seGraphite Folymer, boka, Aluminium fiber, etc. Kugadzirisa zvivakwa zvaro zvemakaniki. , uye inogona zvakare kuwedzerwa pamwe nekubatana nevamwe polyphenylase (Phb), polyhenylene sulfide (PFYFELYLELE GLYCOL
Maitiro ekugadzira anoshandisa Chloroform seyakaisa zvinyorwa, anoshandisa anymymany hydrofluoric acd
Aokai inogadzirwa uchishandisa kumiswa kwePolymerization kana emulsion polmerization.
Kugadzirira kwaMonomer Tetrafluorohyle
Inoshanda kwazvo, Chloroform inoshandiswa seyakaisa zvinhu, anymymy hydrofluoric acid inoshandiswa pamusoro pegumi neshanu TetrafluoroHeryleyleyleyley zvakare inogona kugadzirwa nekuita zinc ne tetrafluorodichlorodichesethane pakupisa kwakanyanya.
Kugadzirira kwePolytetraFluorohyle
Mune enamel kana simbi isingazoswi polymeri Tetrafluorooteroetyle.
Wedzera dzakasiyana siyana dzekupindwa kune reaction kettle, uye tetrafluorootherylene Monomer inopinda polmerization kettle mune gasi chikamu. Gadzirisa tembiricha muKettle kusvika 25 ° C, wozowedzera imwe huwandu hwemutambi (sodium metabisulfite) kutanga polymerization kuburikidza neRedox system. Munguva yePolymerization Process, monomers anoenderera mberi akawedzerwa, uye kudzvinyirira kwePolmerization kunochengetwa ku0.49 ~ 0.78mpa. Kupararira kwakawanikwa mushure mekunge polymerization yakakwenenzverwa kune imwe pfungwa ine mvura, uye tembiricha yakagadziridzwa kusvika pa15 ~ 20îc. Mushure mekusangana neyemuchina uchimhanya, inogezwa nemvura uye yaoma, ndiko kuti, ichi chigadzirwa chinowanikwa seye granular resin.
Teflon yakachengeteka here? Teflon Kuchengetedzeka pachako kwakachengeteka: Teflon zvinhu pachayo haina chepfu, haizooregedze, uye haizo kukonzera njodzi dzehutano. Izvi zvinogona kunge zvichireva kuti chimiro chayo chinomarara mumakemikari chaiwo, gagere akadaya uye akabatikana nemuviri wemunhu.
Dzidza zvakawanda nezve teflon kuchengetedza
Chii chinonzi ptfe chinoshandiswa?
Iyo yakasarudzika nzvimbo yePTFE inoita kuti ishandiswe zvakanyanya mumashandiro emuindasitiri uye marongero emakemikari akadai seindasitiri yemakemikari, petroleum, texthile, chikafu, mushonga, mushonga, magetsi uye michina.
Kushandiswa kwePolytetraFluoroetheryle (PTFE) muAnti-Corrosion Zvivakwa:
Nekuda kwekuremara muCorrosion kuramba kweRabha, girazi, zviyero zvesimbi uye zvimwe zvinhu, zvakanetsa uye zvemakemikari uye zvemakemikari zvevanyori venhau, uye kurasikirwa kwekunyepedzera kuri kutyisa. Nepo PTFE zvinyorwa zvine chekuita nehurongwa hwakanakisa, polytetrafluorohler
Zvikumbiro zvakananga zvinosanganisira: Mapipi ekutumira, pombi dzinopfeka dzekutakura magedhi ekudzvinyirira, svutugadzike emapururu, shangu dzakatsauka, ketani, shangu, shangu, shongwe uye matangi. Iko kuita kwemidziyo yemakemikari inosungira seyako seyako uye mavharuvha ane chakanyanya kukanganisika pakubata uye kuita kwemuchina wose nemidziyo. PTFE zvinyorwa zvine hunhu hwekumanikidza kuramba, kukwezva kupokana, kusanzwisisika kwekunyora, nekukasira, nekuita kuti zviite zvakaringana zvekugadzira mari yekugadzira uye yekuvhiya inobatsira uye inopisa tembiricha pamusoro pe100 °. Senge zvisimbiso zvemahara emachina, kupisa kwenyama, midziyo yokudzvinyirira, mabhegi, mahwendefa, hombodo.
2.The low Flontiftion performance yePolytetraFluoroethylene (PTFE) inoshandiswa mukuremerwa.
Zvikamu zvekupokana zveimwe michina hazvina kukodzera kuhukura, senge mumamiriro ezvinhu anodzungudzwa nekunyora kwechigadzirwa, kana kuita zvinhu zvakanakisa zvechigadzirwa. Izvi zvinodaro nekuti kupfira kuunganidzwa kwezvinhu izvi ndiyo yakaderera pakati pekuzivikanwa kwakasimba. Yayo chaiyo inoshandisa inosanganisira zvibodzwa zvemidziyo yemakemikari, nemusoro wemuchina, uye michina yekurima, se piston mhete, chishandiso chemuchina kutungamira, uye kutungamira mhete. Ivo vanoshandiswa zvakanyanya mumapurojekiti ekuvaka emitambo sekutsigira masiraidhi emabhiriji, tunnel simbi dhizaini denga, mapipi makuru emakemikari, uye matangi ekuchengetedza. Zvidhinha, pamwe nekushandiswa sebhiriji inotsigira uye bhiriji swivels, nezvimwe.
3.Application yePolytetrafluoroetheryle (PTFE) mumagetsi uye magetsi magetsi.
Iko kusingaenzaniswi kurasikirwa uye kudiki dielectric kwekuwedzera kwePTFE ZVINOGONESESA MUNYAYA YEMADZIMAI YEMADZIMAI YEMAHARA Iyo zvakare chimwe chezvinhu zvakakosha zvemagetsi zvemagetsi zvemagetsi zvakadai seaArishpace uye aerospace. Iko kushandiswa kweFluorine mapurasitiki epurasitiki ane huwandu hwepamusoro kune oksijeni uye kukwirira kwepamusoro kumapuro emvura. Uku kusarudzika kwekusarudza kwekufungidzira kudiki kwekufungidzira kunogona kushandiswa kugadzira okisijeni sensors sensors. Hunhu hweFluoroplastics dzinokonzera polar car toperation pasi pekudzvinyirira kwepamoyo uye nekumusoro-soro kunogona kugadzirwa nemacofoni, zvikamu pamabhobhoti, nezvimwe, uye yavo yakaderera inogona kushandiswa. Hunhu hwekushanda kwakanyanya kugona kunogona kuita kuti zviitwe.
4.Application yePolytetraFluoroetherylene (PTFE) mukurapa kwekurapa.
Iyo yakawedzerwa PTFE zvinyorwa ndeyechokwadi inter uye ine yakasimba yakasimba biological adaptability. Izvo hazvizokonzere kuramba nemuviri uye hakuna mhedzisiro yemuviri pamuviri wemunhu. Inogona kuve yakasarudzika neimwe nzira. Yayo microporous inobvumidza kushandiswa kwakasiyana-siyana kwemidziyo yekudzoreredza, kusanganisira zvigadziko zvekugadzirisa uye zvibodzwa zvechinyakare zvekuzvarwa, zvekuvhiya, madiac, general uye erthopedic kuvhiya.
5.Application yeAnti-Stick Zvivakwa zvePolytetraFluoroetherylene (PTFF).
PTFE zvinyorwa zvine diki diki yekukakavara pakati pezvisikwa zvakasimba uye hazvinamire chero chinhu. Iyo ine zvakare ine hunhu hwekukwirira uye hwakaderera kupisa uye makemikari symancess, kuita kuti zviite zvakaringana kuti zviite sekugadzira. Pasi isiri-yematanda inoshandiswa zvakanyanya muAnti-Stiol Sporations. Maitiro eAnti-anomira anonyanya kusanganisira marudzi maviri: kuisa pepa reptfe pane substrate uye kuisa iyo PTFE kuunganidza kana varnish yakaiswa negirazi pane iyo substrate
Dzidza zvakawanda nezvePTFE Coatings
Kunyangwe zvinhu zveptfe zvichine dambudziko rekunetseka zvakanyanya mukusimudzira, nekufambira mberi kwehunyanzvi, nzira itsva dzeSynthesis dzichakurumidza kugadzirisa pfungwa dzekurwadziwa kweptfe uye shandisa ptfe kune huwandu hwakawanda hweminda.
