Tlhahlobo e tebileng ea Polytetraflueroethylene PTFE PTORTIT PTFE PTORTIT LE LITLHAKISO

Polytetrafylene (Poly Tetra Fluoethylene), hangata e tsejoang e le "polasetiki ke Teflon. Chaena, ka lebaka la ho bitsoa "teflon" e boetse e bitsoa Teflon, Teflon, Teflon, Teaflon, Etc.

Polytetraflloebethylene o tsejoa e le "morena oa polasetiki." Roy plunkett, ntate oa fluorothin, o ile a qala ho etsa lipatlisiso ka li-dupont tse United States tseo ba li lokiselitseng tsa bobeli, empa ha li O ile a bula thuto ea khatello ea silinda ka le hlahlamang, ha ho khase khase. Ba ne ba nahana hore ke mohatla oa khase, empa ha ba imeloa silinda, ba ile ba fumana hore silinda e ne e sa fokotsehe boima ba 'mele. Ba ile ba ikutloa ba bula silinda mme ba fumana palo e kholo ea phofo e tšoeu, e neng e le polytetrafluoebeethylene.

Patlisiso ea bona e fumane hore polytetrafluoethyeroeth, sesole sa Artic E ne e le ho fihlela qetellong ea Ntoa ea II ea Lefatše hore e phatlalatsoe, 'me tlhahiso ea indasteri ea PTFF e ile ea fumaneha ka 1946.

1. Lebitso la sehlahisoa: ptfe

2. Lebitso la Senyesemane: Polytetrafluoeeethylene

3. Alias

PTFE; Teflon; Teflon; Teflon; Teflon; F4; King oa Lipkhostic; Teflon (Japanese) [English khubu e

PTF, Lebitso la Brand ke Teflon, 'me phetolelo ea Chaena e fapane libakeng tse fapaneng: amedland China e fetolela e le Teflon]

4. Foromo ea limolecular:

[Cf2cf2] n

5. Mokhoa oa tlhahiso

PTFE

E hlahisoa ke polymeriagetion ea mahala ea tetraflueroetnerlene. Boitšoaro ba Mandasteri ba Mandasteri bo etsoa ka ho hlohlelletsa boteng ba metsi a mangata ho hahlaula mocheso le ho tsamaisa taolo ea mocheso. Pelmemerication hangata e etsoa ho 40 ho isa ho 80 ° C le khatello ea 3 ho isa ho 26 kgf / cm2. Insolfic e susumetsang le li-peric tsa khale li ka sebelisoa e le bahoebi, kapa sistimi ea ho qala e rekoang e ka sebelisoa. Mole e mong le o mong oa Tetraflloroereney e lokolla mocheso oa 171.38kjeko nakong ea polymeriztion. Ho hasanya polymerization ea ho hasanya ho hloka hore ho eketsoe likotlo tsa tšitiso e amanang le khatello ea maikutlo joalo ka perfluorooc acid kapa mabe oa eona.

6. Sesebelisoa

Polytetraflloethylene [PTFE E ka sebelisoa ho mofuta ofe kapa ofe oa mecha ea lik'hemik'hale ka nako e telele, 'me tlhahiso ea eona e rarollotse mathata a mangata indastering ea lik'nyemik'hale, petroceutical le likarolo tsa phartere le tse ling. Litiiso tsa PTFF, Lipereketsi le mabitla. Litiiso tsa PTFF, Liperekhoeretsi le Liphoso li boptjoa ho emisoa hape ho emisoa PTFE. Ha ho bapisoa le lithota tse ling, PTF e na le khanyetso e ntle ea lik'hemi tsa lik'hemik'hale le khatello ea mocheso. E se e sebelisoa haholo joalo ka ha boitsebiso bo hloahloa le ho tlatsa thepa. E na le maemo a phahameng a botsitso ba lik'hemik'hale le khanyetso e ntle haholo, a kang acid ea lik'hemik'hale, joalo-matla Makhetlo a nako e telele a sebelisa mocheso oa nako e telele ke -200- + 250 ℃. E na le tšitiso e ntle ea motlakase ebile e sa anngoe ke mocheso le maqhubu. Ntle le moo, e na le litšobotsi tsa tsela e seng molamu ho sa tsotelleng ebile ha e tuke. Ho emisoa Resin e emisitsoeng hangata e thehoa ebile e sebetsoa ke ho bopa le ho mo sibola. Li-rods tse hlahang, lipolanete kapa li-profiles tse ling li ka sebetsoa haholoanyane ka mekhoa ea mochini e joalo ka ho fetoha, ho cheka le milling. Ebe bar ba ka fetoloa le ho huleloa filiming e hlophisitsoeng.

7. Polytetraflueeetne (PTFE) LITLHAKISO

1. Matla (karohano e phahameng ea ho ba boima ba 'mele)

2. Ka makhetlo a mangata

3. Bothata ba tlhaho

4. Ho hanyetsa ho hanyetsa

5. Ho hanyetsa haholo ha lik'hemik'hale ho tikolohong e thata

6. Tšusumetso e tlase

7. Ho na le chelete e tlase

8. Deant Deant Deant Kamehla

9. Ho monya metsi a tlase

10.Poid Meteo ea Meteo

PTF ke polymer of Tetraflueroetylene. Mahloebi a Senyesemane ke PTFE. Lebitso la khoebo ke "Teflon". E tsejoang e le "morena oa polasetiki". The basic structure of polytetrafluoroethylene is - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 - CF2 -. Polytettafylene e sebelisoa haholo likolong tse fapaneng tse hlokang atication, Alkalis le li-solvent tsa acid. Ha ho chefo ho batho, empa Perfbuocooctal (PFAA), e 'ngoe ea thepa e tala e sebelisoang ho ba Carcinogenic. Boima ba bo-bong ba Molek'hule ba Polytetrafluoegethylene e kholo, e bile limilione tse likete, ha Polyethylene e le 103) feela. Ka kakaretso, kristastallinity e 90 ho isa ho 95%, mme mocheso o qhibilihang ke oa 327 ho fihlela 342 ° C. Litsi tsa CF2 ho Polytetrafluoebeylene Molecule e hlophisitsoe ka sebopeho sa zigzag. Ho tloha ra ratoa atomo ea foorne e kholo hanyane ho feta ea hydrojene, likarolo tse haufi tsa CF2 li ke ke tsa fetisoa ka ho felletseng bokaholimo ba kemiso eohle ea polymer. Sebopeho sena sa lisele se hlalosa thepa e fapaneng ea PTFE. Ha thempereichara e le tlase ho 19 ° C, Mofutsi oa 13/6 o thehoa; Ka 19 ° C, phetoho ea mohato e etsahala, 'me limolek'hule li sa bapisoa, li theha helix ea 15/7.

8. LITLHAKISO TSA BOPHELO

Sebopeho sa lik'hemik'hale sa polytetlaflueroeth se etsoa ka ho nkela liapole tsohle polyethylene le liathomo tsa folline.

Liathomo tsa FOME Molek'hule li koahela litlamo tsa CF tsa CF tsa CF li phahameng ebile li tsitsitse haholo. Ha e hlonesoe ke lik'hemik'hale life kapa life ntle le limmapa tsa alkali le forleine ea mantlha.

F Atom ho Molek'hule ea PTFE e entsoe ka symmetrical, 'me likarolo tse peli tsa CF li kopantsoe ka mokhoa o fapaneng. Ha ho na lielektrone tsa mahala molek'hule, 'me molek'hule eohle ha e nke lehlakore. PTFE e na le thepa e ntle ea lefu hobane ha ho na litlamo tsa gram ka sebopeho sa limolek'hule, ka hona le kristanta ea eona e phahame haholo. Hobane ho na le khetla e nang le metsi a mangata ka ntle ho limolek'hule tsa PTF, e na le thepa e ikhethang e sa sebetseng le e tlase e lekaneng.

1. Tlhatlhobo: Ha e angoe ke tikoloho khafetsa, tahlehelo ea molumo e nyane e ka fihla, 'me lithaba tsa motlakase oa ho pharalla li holimo.

2. Ho hanyetsa mocheso o phahameng le o tlase: Phello ea mocheso ha e fetohe haholo, mocheso o pharaletseng, mocheso o matla ke -190 ~ 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 200 ℃.

3. Boithati: Ho na le khohlano e nyane haholo har'a lithota e na le thepa e ntle ea oli ea oli.

4. Phahameng e sa fetoheng: Ha ho na lintho tse bonahalang tse tiileng li ka latela bokaholimo. Ke thepa e thata ka matla a manyane.

5. Thibelo ea botsofali, rabara ea mahlaseli le ho hlomoha ka tlase: bokaholimo le ts'ebetso li lula li sa fetoha sepakapakeng.

6. E se nang mollo: index ea ho fokotsa oksijene e ka tlase ho 90.

7. Ho hanela ha lik'hemik'hale tsa lik'hemi tsa lik'hemi tsa Cression: Ntle le tšepe ea alkali, PTF e batla e sa ts'oaroe ke linkoe ​​leha e le life tsa lik'hemik'hale. Ka mohlala, ha phello e phehiloeng Sulfuric acid ea Sulfuric, nitric acid, hydrochloric acid, kapa le Aqua Reice, boima le ts'ebetso ea eona li lula li sa fetoha. Hape e boetse e sa kopanele li-solvents tsohle, 'me e qhibiliha ka li-alland tse holimo feela tse 300 ° C (hoo e ka bang 0,1g / 100g). PTF ha e monya mongobo, ha e tuka haholo ho oksijene le ultraviolelet ho oksijenelet, kahoo e hanela ha boemo bo botle ba leholimo.

Le ha thekollo ea bo-'maba ba khabone ea khabone ea carbon-creane e hloka hore e utloisise 346.94 le ea Tetraflueth. Ka hona, nakong ea mocheso o phahameng, polytetrafluoetyelene e sebelisoa haholo tetraflueneene. Litefiso tsa ho fokotsa boima ba 'mele (%) tsa polytetraflueethylene ho 260, 37-4, 4 × 10-2 ka hora ka ho latellana. Ho ka bonoa hore PTFE e ka sebelisoa bakeng sa nako e telele ho 260 ℃. Kaha lihlahisoa tse nang le chefo tse kang fluoerophosgene le Perfbuoburnerne le mocheso o khethehileng o lokela ho lefuoa ho tsoa ho ts'ireletso ea polokeho le ho thibela polytetrafyoethylene ho tsoa ka malakabe a bulehileng.

Ha e qhibilihe ka mocheso oa 250 ° C mme o sa fetoha Brittle mochesong oa Ultra-tlase oa -260 ° C. PTF e boreleli haholo, esita le leqhoa le ke ke ea bapisoa le eona; Meruti ea eona ea insulation e ntle haholo, filimi e teteaneng e le koranta e lekane ho mamella mocheso o phahameng oa 1500VVVVVVVVVVVVVV.

9. Thepa ea 'mele ea' mele

PTF e bonolo haholo. E na le matla a tlase haholo.

Polytetrafylene (F4, PTFE) e na le letoto la mekhoa e metle ea ts'ebetso: Litoro tsa mocheso o molelele - li ntse li le bonolo ho -100 degrees; corrosanication corrosance - e hanyetsang Aki Regia le solric solvents; Khanyetso ea boemo ba leholimo - bophelo bo tsofetseng bo botle ka polastics; lubricration e phahameng - e na le mohono o monyane ka ho fetisisa oa polasetiki (0.04); se ke oa khanye - o na le tsitsipano e nyane ka har'a thepa e tiileng ntle le ho latela eng kapa eng; Batho bao e seng chefo - ba na le kelello ea 'mele; thepa e ntle ea motlakase, thepa e ntle ea CRACS. Litlhophiso tsa PTFF li sebelisoa hohle ho likarolo tsa bohlokoa tse kang ts'ireletso ea naha, matla a atomic, peterole, seea-le-moea le lithibelo tsa lik'hemik'hale.

10. Polytetrafluoneethylene

Ptfe Rods, lipeipi, lipolanete, li ne li fetola libaka. PTF ke polymer of Tetraflueroetylene. Mahloebi a Senyesemane ke PTFE. Mokhoa oa sebopeho ke. E fumanoe bofelong ba bo-1930 le ho kenya tlhahiso ea indasteri ka 19400000. Thepa: Boima ba moleng ba motho ea amanang le polytetlattafluegeeth. Ka kakaretso, kristastallinity e 90 ho isa ho 95%, mme mocheso o qhibilihang ke oa 327 ho fihlela 342 ° C. Litsi tsa CF2 ho Polytetrafluoebeylene Molecule e hlophisitsoe ka sebopeho sa zigzag. Ho tloha ra ratoa atomo ea foorne e kholo hanyane ho feta ea hydrojene, likarolo tse haufi tsa CF2 li ke ke tsa fetisoa ka ho felletseng bokaholimo ba kemiso eohle ea polymer. Sebopeho sena sa lisele se hlalosa thepa e fapaneng ea PTFE. Ha thempereichara e le tlase ho 19 ° C, Mofutsi oa 13/6 o thehoa; Ka 19 ° C, phetoho ea mohato e etsahala, 'me limolek'hule li sa bapisoa, li theha helix ea 15/7.

1. Thepa ea Mechani: E nyane haholo, e nyane feela ea polyethylene, eo e leng karolo ea bohlokoa ea polyhudoronna. Le hobane likhoele tse amanang le ho ferekana le liketane tsa creane le carbon li tlaase haholo, PTF ha e rekisoe.

Matla a motlakase: PTF e na le lijo tse tlase tsa lijo le tahlehelo ea ho jale le ho lahleheloa ke litheko tse pharaletseng, 'me u hanyetsana le maemo a phahameng a theko e phahameng le arc.

3. Khanyetso ea mahlaseli: Ho hanyetsa mahlaseli a polytetlaflueroethylene ha e futsanehile (bed). E tla nyenyefatsoa kamora ho pepesetsoa radiation e phahameng, le thepa ea motlakase le merero ea polymer e ka fokotsoa haholo.

4. Poulymerigation: Polytetrafluoethylene e hlahisoa ke polymeria ea mahala ea tetraflueroekyelene. Boitšoaro ba Mandasteri ba Mandasteri bo etsoa ka ho hlohlelletsa boteng ba metsi a mangata ho hahlaula mocheso le ho tsamaisa taolo ea mocheso. Pelmemerication hangata e etsoa ho 40 ho isa ho 80 ° C le khatello ea 3 ho isa ho 26 kgf / cm2. Insolfic e susumetsang le li-peric tsa khale li ka sebelisoa e le bahoebi, kapa sistimi ea ho qala e rekoang e ka sebelisoa. Mole e mong le o mong oa Tetraflloroereney e lokolla mocheso oa 171.38kjeko nakong ea polymeriztion. Ho hasanya polymerization ea ho hasanya ho hloka hore ho eketsoe likotlo tsa tšitiso e amanang le khatello ea maikutlo joalo ka perfluorooc acid kapa mabe oa eona.

5. Ka ho ts'oara ka mokhoa o lekaneng (25 ~ 250 ℃): 10 ~ 12 × 10-5 / ℃. PTF e lula e le thepa e ntle haholo ea mahlale a mocheso o moholo oa -196 ho ea 260 ° C. E 'ngoe ea litšobotsi tsa polymers tsa Perfbucarbon ke hore ha li brittle ho theola lithemparetjha tse tlase.