I-PTFE vs Teflon: Ngaba Ziyafana? – Besteflon

Xa sisebenza nabathengi bamanye amazwe, sihlala sidibana nale meko: imizobo ichaza ityhubhu ye-PTFE, ngelixa ikowuteshini yomthengisi iyidwelisa njengetyhubhu yeTeflon, nto leyo eshiya amaqela okuthenga engaqinisekanga ukuba abhekisa kwisixhobo esifanayo na kwaye ibangela ukuqinisekiswa okuthatha ixesha elide. Ingxaki engakumbi, abanye ababoneleli basebenzisa igama elithi "Teflon" ukuchaza i-PFA okanye i-FEP—kuba uphawu lwentengiso lweTeflon® lugubungela izinto ezininzi. Eli nqaku linika inkcazo epheleleyo yamagama, iimpawu zorhwebo, kunye neengcamango zokuthenga ezisebenzayo kwindawo enye.

•I-PTFE kunye neTeflon zizinto ezifanayo;I-Teflon® ligama nje lorhwebo lwe-PTFE.

•Nangona kunjalo, igama elithi "Teflon" lisetyenziswa kakhulu kushishino lwemveliso.ingabhekisa kwi-PTFE, PFA, okanye i-FEP.

•I-Chemours (eyayisakuba yiDuPont) iphethe uphawu lweTeflon®;ababoneleli abangagunyaziswanga abanakuyisebenzisa ngokusemthethweni.

•I-odolo yokuthenga kufuneka ichaze i-PTFE endaweni yeTeflonukunqanda ukungacaci kokuhanjiswa kwempahla.

•"Ityhubhu yeTeflon" enexabiso eliphantsi kakhulu kusenokwenzeka ukuba ayiveliswanga kusetyenziswa izinto eziluhlaza zeChemours;oku kufuneka kuqinisekiswe.

Ngaba i-PTFE kunye ne-Teflon zizinto ezifanayo?

Lo ngumbuzo ophambili, kwaye impendulo ilula: ewe, i-PTFE kunye ne-Teflon zizinto ezifanayo. Nangona kunjalo, "izinto ezifanayo" kunye "negama elifanayo" azithethi into enye kwiimeko zokuthenga—ukuqonda lo mahluko kwenza yonke imibuzo elandelayo ibe lula.

I-PTFE = I-Polytetrafluoroethylene = Igama leKhemikhali

I-PTFE imele iPolytetrafluoroethylene, eyaziwa kakhulu ngesiTshayina njenge "polytetrafluoroethylene." Olu luphawu lwekhemikhali olubhekisa kwi-polymer eyenziwe kwii-tetrafluoroethylene monomers. Nokuba ivela phi na imveliso eluhlaza, zonke iimveliso ze-polytetrafluoroethylene ezenziwe yinkampani ziphawulwa ngokufanayo njenge-PTFE—igama eliqhelekileyo leshishini elingelolamvelisi othile.

I-Teflon® = Uphawu lorhwebo olubhalisiweyo lweDuPont

I-Teflon® luphawu lorhwebo olubhalisiweyo lwe-Chemours (olwathi lwavela kwi-DuPont ngo-2015). Ngo-1938, isazinzulu saseDuPont uRoy Plunkett safumanisa i-PTFE ngempazamo, kwaye inkampani yaqala ukuyithengisa phantsi kophawu lorhwebo lwe-Teflon® ngo-1945. Ngokuthe ngqo, i-Teflon® ibhekisa kwi-"PTFE eveliswe yi-DuPont/Chemours" —njengoko i-Kleenex® ibhekisa kuhlobo oluthile lweetawuli zephepha.

Nangona kunjalo, inyani inzima ngakumbi kunokuba iinkcazo zibonisa. Kwishishini, igama elithi "Teflon" lithetha i-PTFE, kwaye abathengisi abaninzi basebenzisa eli gama ukuchaza iimveliso zabo ngaphandle kwemvume—into eqhelekileyo kwicandelo lemveliso laseTshayina: xa abathengi becela "iityhubhu zeTeflon," abathengisi ngokubanzi bayakuqonda oku njengokubhekisa kwiityhubhu zePTFE. EBesteflon, sihlala sidibana nemibuzo enjalo; emva kokuqinisekisa iinkcukacha zezinto, sihlala sichaza i-PTFE kumaxwebhu asemthethweni ukuze siphephe ukungacaci.

 

Kutheni igama elithi "Teflon" lingathethi nge-PTFE?

Ukuba iTeflon ibiligama nje lorhwebo lwePTFE, ingxaki ibiya kuba lula. Nangona kunjalo, eneneni, iChemours ithengisa ngaphezulu kwe-fluoropolymer enye phantsi kwegama lophawu iTeflon®. Le nyaniso yeyona nto ibangela ukudideka kokuthengwa kwaye igxininisa imfuneko yokuchaneka ngakumbi kumaxwebhu eenkcukacha.

Okwangoku iChemours ithengisa ezi zinto zilandelayo phantsi kophawu lweTeflon®:

 

 

Oku kuthetha ukuba xa umthengisi esithi "sinikezela ngeetyhubhu zeTeflon," basenokuba babhekisa kwiityhubhu zePTFE, iityhubhu zePFA, okanye iityhubhu zeFEP. Ezi zinto zintathu zahluke kakhulu kubushushu bazo obuphezulu, iimfuno zokucubungula, kunye namaxabiso; impazamo yonobumba omnye inokubangela inqanaba lokusebenza elahlukileyo ngokupheleleyo xa kuhanjiswa.

Icebiso: Sebenzisa amagama eekhemikhali (PTFE/PFA/FEP) rhoqo kwiiodolo zokuthenga, iinkcukacha, kunye neekhontrakthi; kuphephe ukusebenzisa "iTeflon." Oku akusiyo nje into yokugxeka kodwa yindlela elula yokuthintela iingxabano zokuhanjiswa kwempahla. Qaphela ukuba yonke iBesteflonIimveliso zepayipi ze-PTFEzibhalwe ngamagama eekhemikhali endaweni ye-"Teflon"-kuba ukuchaneka kudlula ukulula.

 

Ngubani ophethe uphawu lwentengiso lweTeflon®?

Nangona ubunini beempawu zorhwebo bunokubonakala bungumcimbi osemthethweni, bugqiba ngokuthe ngqo ukuba ngaba ababoneleli bakho banokulisebenzisa ngokusemthethweni igama elithi "Teflon" kunye nokuba zeziphi izinto ezisetyenziswa ngokwenene kwi "Teflon tube" oyithengayo.

Imbali yoRhwebo

•Ngowe-1938,Isazinzulu saseDuPont uRoy Plunkett safumanisa i-PTFE.

•1945:IDuPont ibhalise uphawu lwentengiso lweTeflon® yaza yaqalisa ukurhweba ngalo.

•2015:I-DuPont yaqala ishishini layo leekhemikhali zokusebenza yaya kwinkampani ezimeleyo iChemours, kwaye uphawu lwentengiso lweTeflon® lwabelwa iChemours.

•Skude, iChemours inegama lorhwebo leTeflon® kwaye inika amalungelo okufumana ilayisenisi kubathengi be-PTFE resin kwihlabathi liphela.

Kuthetha ukuthini oku xa kuthengwa?

Ubunini obusemthethweni bophawu lwentengiso bunemiphumo emibini ebonakalayo ekuthengweni:

1. Umthengisi wakho akanakuvunyelwa ukuba alebhelishe imveliso ngeTeflon®.Ukuba umenzi wepayipi usebenzisa ilogo yeTeflon® kwiileyibhile zemveliso okanye kwiwebhusayithi ngaphandle kokufumana imvume yophawu kwiChemours, oku kuthetha ukwaphulwa komthetho wentengiso ngokusemthethweni. Oku akuchaphazeli umgangatho wezinto ngokwazo—iifektri ezininzi zaseTshayina zisebenzisa i-resin yePTFE eveliswe apha ekhaya (umz., iDongyue, iHaohua, njl.njl.), ehlangabezana ngokupheleleyo nemigangatho yokusebenza—kodwa awunakuyibhala ilebheli imveliso yokugqibela ngeTeflon®.

2. "Ityhubhu yeTeflon" ayinakusetyenziswa njengesiseko sokwamkelwa.I-odolo yokuthenga kufuneka ichaze "ityhubhu yeTeflon"; umthengisi angazisa naluphi na uhlobo lombhobho we-fluoropolymer. Ukuchaza kuphela "ityhubhu ye-PTFE" okanye "ityhubhu ye-PFA" kunokusebenza njengomgangatho wokwamkelwa kobugcisa xa kukho iingxabano.

 

Ngaba iimpawu ze-PTFE ezivela kwimithombo eyahlukeneyo ziyafana ngokupheleleyo?

Emva kokuba ndicacisile imiba enxulumene neempawu zorhwebo kunye neendlela zokubiza amagama, inkxalabo elandelayo yamaqela okuthenga yile: Ngaba izixhobo ze-PTFE ezivela kwimithombo eyahlukeneyo zibonisa iimpawu ezifanayo? Impendulo ithi "ziyafana, kwaye zinotshintsho oluncinci" — olu mahluko ngokubanzi aluchaphazeli ukusebenza kwizicelo ezininzi kodwa lunokubangela imingeni kwiimeko ezichanekileyo.

Iindawo ezifanayo zazo zonke izixhobo ze-PTFE

Ulwakhiwo lweekhemikhali ze-PTFE luqulathe imixokelelwane ethe tyaba eyenziwe ziibhondi ze-carbon-fluorine, kwaye luhlala lufana nokuba izinto eziluhlaza zivela kwiChemours, Daikin, Dongyue, okanye kwabanye ababoneleli. Ezi mpawu zilandelayo ziyafana kuzo zonke iintlobo ze-PTFE:

• Ukungangeni kweekhemikhali – phantse akukho ziphumo zeekhemikhali ezenzekayo.

• Uluhlu lobushushu bokusebenza: -65°C ukuya ku +260°C

• I-friction coefficient – ​​0.1, iphantsi kakhulu kwizinto eziqinileyo

• Iimpawu zeDielectric – I-Dielectric constant: 2.1; Amandla eDielectric: 25 kV/mm

• Ayinamatheli – Phantse zonke izinto azinamatheli

Zeziphi iiyantlukwano ezinokwenzeka

Ukufana kwesakhiwo seekhemikhali akuthethi ukuba zonke iimveliso ze-PTFE ziyafana ngokupheleleyo. Ezi zinto zilandelayo zinokubangela umahluko phakathi kweemveliso ezivela kwiibhetshi ezahlukeneyo okanye ababoneleli:

 

 

Iingcebiso eziphambili zokuthenga:Kwizicelo ezibandakanya ukucubungula iikhemikhali eziqhelekileyo okanye ukusetyenziswa ngokubanzi kwimizi-mveliso, umahluko kwimithombo yezinto eziluhlaza awunamsebenzi. Nangona kunjalo, ukuba iprojekthi ibeka iimfuno ezingqongqo kwimilinganiselo yokumelana nobubanzi bangaphakathi (umz., iityhubhu ze-PTFE capillary), ukugudama kodonga lwangaphakathi, okanye ukumelana noxinzelelo lwexesha elide, ingqwalasela yakho ayifanele ibe kukuba ingaba izinto ziyi-PTFE kuphela, kodwa ikwakukuqinisekisa amandla okukhupha kunye nokulawula umgangatho womthengisi. Inkqubo yokulawula umgangatho ye-BesteflonIityhubhu ze-PTFE ezigudileyo——kubandakanya uvavanyo lokuqina komoya, uvavanyo lokubamba uxinzelelo lwe-hydrostatic, kunye nothotho lokuqinisekiswa olufana novavanyo loxinzelelo oluphezulu, uvavanyo lokuqhuma kwe-hydraulic kunye novavanyo lokudinwa olugobileyo, ukuqinisekisa ukuba iimveliso ziyahlangabezana nemigangatho yoshishino lwe-fluoroplastic. Yenzelwe ngokukodwa iimeko ezinjalo ezichanekileyo.

Ifanele ibhalwe njani kwi-odolo yokuthenga?

Ingxoxo igubungele umahluko kwiindlela zokubiza amagama, iimpawu zorhwebo, kunye nezixhobo, ekugqibeleni igxile kumbuzo osebenzayo: ezi nkcukacha mazichazwe njani kwiiodolo zokuthenga kunye neenkcukacha zobugcisa?

Sebenzisa amagama eekhemikhali, kungekhona amagama eebhrendi

 

Ukubhala igama lezinto kuphela akwanelanga

Ukuthi nje "ityhubhu ye-PTFE" akwanelanga. Inkcazelo epheleleyo yokuthenga kufuneka iquke oku kulandelayo:

•Ibanga lezinto:Umgangatho oQhelekileyo / Umgangatho woKutya (uhambelana ne-FDA 21 CFR 177.1550) / Umgangatho wezonyango

•Ubungakanani: I-ID × OD × Ubukhulu bodonga, kunye neemfuno zokunyamezelana

•Ubude kunye nobungakanani

•Ityala Lokusetyenziswa:Inceda ababoneleli ukuba ngaba kufuneka ulawulo olukhethekileyo lomgangatho

•Iziqinisekiso ezifunekayo kunye neengxelo zovavanyo

Kwinkqubo yeBesteflon yokunika iikowuteshini, inyathelo lokuqala elithathwa ziinjineli kukuqinisekisa ezi parameters. Oku akugxeki—kunoko, okukhona iinkcukacha zicaca, kokukhona inkqubo yokuhambisa ilula kwaye iimfuno zokuphinda zisebenze zimbalwa.

 

FAQ

Nantsi imibuzo eqhelekileyo ebuzwa ngabathengi malunga "ne-PTFE vs Teflon." Ukuba imeko yakho ayigutyungelwanga, zive ukhululekile ukucela uncedo kwiinjineli zethu ngokuthe ngqo.

 

Q: Umthengisi uthi usebenzisa "izinto zeTeflon" - ngaba oko kuthembekile?

A: Kufuneka ingcaciso engaphezulu. Ukuba babhekisa kwi-resin ye-PTFE yophawu lwe-Chemours 'Teflon®, kuya kufuneka ucele ubungqina bebhetshi yezinto eziluhlaza. Ukuba igama elithi "Teflon" lisetyenziswa nje njengegama eliqhelekileyo le-PTFE (eliqheleke kakhulu kushishino), izinto eziluhlaza zinokuvela kuye nawuphi na umthengisi we-resin ye-PTFE—oku akuyongxaki kangako, kodwa akunakucingelwa ukuba kuvela kwi-Chemours. Kwiinkqubo ezininzi zoshishino, ii-resin ze-PTFE eziveliswe ekhaya (ezifana nezo zivela eDongyue okanye eHaohua) ziyahlangabezana nazo zonke iimfuno zokusebenza.

Q: Ngaba igama elithi "Teflon" lingaprintwa kwityhubhu ye-PTFE?

A: Ukuba izinto zombhobho azisebenzisi i-resin ye-Chemours' Teflon® okanye azinamvume evela kwi-Chemours yophawu lwentengiso, ukuprinta "Teflon" kwimveliso kukwaphula umthetho wophawu lwentengiso. Kucetyiswa ukuprinta "PTFE" kumbhobho – le ndlela iyahambelana kwaye icacile.

Q: Iiresin ze-PTFE zeChemours ziphantsi kangakanani xa zithelekiswa neemveliso ze-PTFE eziveliswa apha ekhaya?

A: Kwizicelo zemizi-mveliso zesiqhelo, utshintsho alunamsebenzi. Umahluko omkhulu uvela ikakhulu phantsi kweemeko ezinzima: ukuzinza kwe-extrusion ye-ultrafine capillary tube (ID<0.5mm), ukumelana nokuqhekeka kubushushu obuphezulu obude (>200℃), kunye neemfuno zococeko ezithile kwizicelo zonyango okanye ze-semiconductor. Ukuba isicelo sakho asibandakanyi ezi meko zinzima, izinto ezikrwada eziveliswa ekhaya zinokuhlangabezana ngokupheleleyo neemfuno ngexabiso eliphantsi.

Q: Umthengi wam ucela "iityhubhu zeTeflon" - ndingenza njani?

A: Qinisekisa kumthengi ukuba uyazifuna na iityhubhu zePTFE okanye iityhubhu zePFA/FEP. Kwiimeko ezininzi, xa abathengi bebhekisa "kwiityhubhu zeTeflon," babhekisa kwiityhubhu zePTFE. Nje ukuba ziqinisekiswe, tshintsha "ityhubhu yeTeflon" nge "ityhubhu yePTFE" kwisivumelwano njengengcaciso esemthethweni yokuthintela iingxabano zexesha elizayo.

Q: Ndingawuhlula njani ngokukhawuleza phakathi kwe-PTFE, i-PFA, kunye ne-FEP?

A: Eyona ndlela ilula: i-opaque = PTFE, i-semi-transparent = PFA, i-fullly transparent = FEP. Ulwelo kwi-FEP lubonakala ngokucacileyo ngetyhubhu; olo lukwi-PFA lubonakala lubonakala kodwa lufiphele kancinci; ngelixa olo lukwi-PTFE lungabonakali ngokupheleleyo. Olu luvavanyo olukhawulezileyo nje—ukukhetha okuqinisekileyo, jonga kwitheyibhile yokuthelekisa enemilinganiselo esi-7 kwinqaku.Ityhubhu ye-PTFE vs PFA vs FEP.

Q: Kutheni kukhankanywa "iTeflon" kwiBesteflon'siwebhusayithi?

A: I-Besteflon ifumene imvume esemthethweni yokusebenzisa uphawu lwentengiso lweTeflon® kwaye isebenza phantsi komthetho. Singumvelisi okhethekileyo weetyhubhu zeTeflon, kuquka iityhubhu zePTFE kunye neetyhubhu zePFA/FEP.