PTFE vs FEP vs PFA: Yintoni umahluko?

PTFE vs FEP vs PFA

I-PTFE, i-FEP kunye ne-PFA zezona ziyaziwa kakhulu kwaye ziqhelekileyo ii-fluoroplastics.Kodwa yintoni, ngokwenene, umahluko wabo?Fumanisa ukuba kutheni i-fluoropolymers zizinto ezikhethekileyo, kwaye yeyiphi i-fluoroplastic eyona ifanele isicelo sakho.

Iimpawu ezizodwa ze-fluoroplastics

IiFluoropolymers zonwabela iipropathi ezininzi ezizodwa ezizenza zilungele ukusetyenziswa kwezonyango, iimoto, umbane kunye nezicelo zasekhaya, phakathi kwabanye.

I-Fluoroplastics ineempawu ezilandelayo:

1.Ubushushu bokusebenza obuphezulu kakhulu

2.Uphawu lokungakhuni

3.Umgangatho ophantsi wokukhuhlana

4.Ukuchasana okuphezulu kakhulu kwiikhemikhali kunye ne-solvents

5.Ukumelana nombane okuphezulu kakhulu

IiFluoroplastics ezahlukeneyo zonwabela iiyantlukwano ezifihlakeleyo, kubandakanywa amaqondo obushushu ahlukeneyo okusebenza, kwaye zilungele izicelo ezahlukeneyo.Ukuba ikhethwe ngokuchanekileyo, i-fluoropolymers inokuhambisa ixabiso elihle kunye neenzuzo zokusebenza.

Iinzuzo ze-PTFE

PTFE, okanye iPolytetrafluoroethylene, nguyisemkhulu wazo zonke i-fluoroplastics.Ifunyanwe ngusosayensi uRoy J. Plunkett kwi-1938, i-PTFE iyona nto i-fluoropolymer engavamile kwaye ibonisa ukusebenza kakuhle ngokubhekiselele kwiqondo lokushisa, ukuchasana kweekhemikhali kunye neepropati ezingezizo.

Ukongeza ekonwabeni iipropathi ezizodwa ze-fluoroplastics, i-PTFE iyazohlula ngokuba nezi zibonelelo zilandelayo:

I-1.Ixabiso elingcono kakhulu: umlinganiselo wokusebenza

2.Ubushushu bokusebenza obuqhubekayo +260°C - Eli lelona qondo liphezulu lokusebenza kuyo nayiphi na i-fluoroplastic

3.Ukumelana nayo yonke imichiza

4.Ukungancamatheli kakhulu (nokuba unqinishe unokutyibilika kwi-PTFE)

5.Umbala oqaqambileyo

Eyona nto ingalunganga ye-PTFE kukuba ayinyibiliki xa ishushu kwaye ke kunzima ukuyiqhuba.Iindlela ezingaqhelekanga kakhulu ziyafuneka ukubumba, ukukhupha kunye nokutshisa le fluoropolymer.

Ngenxa yeepropati zayo ezizodwa, i-PTFE ilungele ukusetyenziswa kwi-insulation yombane kunye nokukhuselwa kwezinto zombane.

Singumenzi oqeqeshiweyo weumbhobho weptfe, ukuba unayo nayiphi na imibuzo, ungaqhagamshelana nathi!

Iinzuzo ze-FEP

I-FEP, okanye iFluoroethylenepropylene, yinguqulelo enyibilikayo enokunyibilika ye-PTFE.I-FEP ineempawu ezifanayo kakhulu ne-PTFE, kodwa inobushushu obusezantsi obuphezulu bokusebenza obuyi +200°C.Nangona kunjalo, i-FEP inokusetyenzwa ngokulula kwaye inokudityaniswa ngokulula kwaye iphinde ibunjwe ibe ziinkangeleko ezintsonkothileyo.

Kanye nokuba neempawu ezizodwa ze-fluoroplastics, i-FEP iyazonwabela ezi zibonelelo:

1. Ukuwelda kunye nokuphinda ukubumba amandla

2.Amaqondo obushushu okusebenza okusebenza -200 ° C ukuya +200 ° C - FEP ihlala iguquguquka kumaqondo obushushu cryogenic

3.Ukuchasana okupheleleyo kwiikhemikhali kunye ne-UV

4.I-Bio-iyahambelana

5. Umbala ocacileyo

Enkosi kwezi zibonelelo, ubushushu be-FEP bucutheka bunobushushu obuphantsi kwaye bunokucutheka ngokukhuselekileyo phezu kwemathiriyeli ebuthathaka kubushushu ngaphandle koloyiko lokubangela umonakalo.Ngenxa yoko, i-FEP ilungele ukufaka izixhobo zombane ezibuthathaka kunye nezixhobo.

Izibonelelo zePFA

I-PFA, okanye i-Perfluoralkoxy, yinguqulelo yobushushu obuphezulu be-FEP.I-PFA ineempawu ezifanayo kwi-FEP kodwa inokusetyenziswa kumaqondo obushushu asebenzayo ukuya kuthi ga kwi-+260 °C ngelixa isala i-nyibilika-iqhubekeke, ngenxa ye-viscosity ephantsi yokunyibilika kune-PTFE.

Ukongeza ekonwabeni iipropathi ezizodwa ze-fluoropolymers, iPFA iyazahlula ngokuba nezi zibonelelo zilandelayo:

Ubushushu bokusebenza obuqhubekayo +260°C - Eli lelona qondo liphezulu lokusebenza kuyo nayiphi na i-fluoroplastic

1.I-Welding kunye nokuphinda ukubumba amandla

2.Good permeability ukumelana

3.Ukumelana neekhemikhali ezigqwesileyo, nakwiqondo lokushisa eliphakamileyo

4.I-Bio-iyahambelana

5.Amabakala aphezulu okucoceka akhoyo

6.Umbala ocacileyo

Eyona nto ingalunganga ye-PFA kukuba ibiza kakhulu kune-PTFE kunye ne-FEP.

I-PFA ilungele izicelo ezifuna inqanaba eliphezulu lokucoceka, ukuchasana kweekhemikhali okugqwesileyo kunye nobushushu obuphezulu bokusebenza.Le fluoroplastic isetyenziswa kakhulu kwiityhubhu zonyango, ukutshintshiselana kobushushu, iibhaskithi zesemi-conductor, iimpompo kunye nezinto zokufakelwa, kunye ne-valve liners.

Apha eBesteflonsiziingcaphephe ekuziseni izisombululo ezitsha zefluoropolymer kwizicelo zakho zobugcisa.Fumana okuninzi malunga wethuIimveliso zeFluoroplastic.

Ixesha lokuposa: Nov-30-2023

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