PTFE, FEP le PFA ke li-fluoroplastic tse tsebahalang haholo le tse tloaelehileng.Empa, hantle-ntle, phapang ea bona ke efe?Fumana hore na hobaneng li-fluoropolymers e le lisebelisoa tse ikhethang, le hore na ke fluoroplastic efe e loketseng ts'ebeliso ea hau.
Lintho tse ikhethang tsa fluoroplastics
Li-fluoropolymers li natefeloa ke lintho tse 'maloa tse ikhethang tse etsang hore li tšoanelehe ho sebelisoa lits'ebetsong tsa bongaka, tsa likoloi, tsa motlakase le tsa malapeng, har'a tse ling.
Fluoroplastics e na le lintho tse latelang:
1.Mecheso e phahameng haholo ea ho sebetsa
2.Tsbotsi ea ho se thupeng
3.Bokaholimo ba likhohlano tse tlase
4.Ho hanyetsa haholo lik'hemik'hale le li-solvents
5.Ho hanyetsa motlakase haholo
Li-fluoroplastic tse fapaneng li natefeloa ke phapang e poteletseng, ho kenyelletsa le mocheso o fapaneng oa ho sebetsa, 'me li loketse lits'ebetso tse fapaneng.Haeba e khethiloe ka nepo, li-fluoropolymers li ka fana ka melemo e ntle ea theko le ts'ebetso.
Melemo ea PTFE
PTFE, kapa Polytetrafluoroethylene, ke ntate-moholo oa li-fluoroplastics tsohle.E fumanoe ke rasaense Roy J. Plunkett ka 1938, PTFE ke fluoropolymer e sa tloaelehang ka ho fetisisa 'me e bonts'a ts'ebetso e ntle ka ho fetisisa mabapi le mocheso, lik'hemik'hale tsa lik'hemik'hale le thepa e sa tsitsang.
Ntle le ho natefeloa ke thepa e ikhethang ea fluoroplastics, PTFE e ikarola ka ho ba le melemo e latelang:
1.Theko e ntle ka ho fetisisa : tekanyo ea ts'ebetso
2.Mocheso o tsoelang pele oa ho sebetsa oa +260 ° C - Ena ke mocheso o phahameng ka ho fetisisa oa ho sebetsa bakeng sa fluoroplastic leha e le efe.
3.Ho hanyetsa hoo e batlang e le lik'hemik'hale tsohle
4.E sa thupeng haholo (esita le checheiki e ka thella ho PTFE)
5.Mmala o khanyang
Bothata bo ka sehloohong ba PTFE ke hore ha e hlile ha e qhibilihe ha e futhumala 'me ka hona ho thata ho e sebetsa.Ho hlokahala mekhoa e sa tloaelehang haholo ho bopa, ho ntša le ho cheselletsa fluoropolymer ena.
Ka lebaka la thepa ea eona e ikhethang, PTFE e loketse lits'ebetso tsa ho kenya motlakase le ts'ireletso ea likarolo tsa elektroniki.
Re setsebi sa moetsi oaptfe pipe, haeba u na le lipotso, u ka ikopanya le rona!
Melemo ea FEP
FEP, kapa Fluoroethylenepropylene, ke mofuta o ka qhibilihang oa PTFE.FEP e na le thepa e ts'oanang haholo le PTFE, empa e na le mocheso o tlase oa ho sebetsa oa +200°C.Leha ho le joalo, FEP e ka sebetsoa habonolo, 'me e ka chesetsoa habonolo le ho bopjoa ho ba liprofaele tse rarahaneng.
Hape le ho ba le thepa e ikhethang ea fluoroplastics, FEP e natefeloa ke melemo ena:
1. Ho cheselletsa le ho bopa bocha bokhoni
2. Lithempereichara tsa ho sebetsa tsa -200 ° C ho ea +200 ° C - FEP e lula e feto-fetoha ha mocheso oa cryogenic
3.Total ho hanyetsa lik'hemik'hale le UV
4.Bio-e lumellana
5. Mmala o hlakileng
Ka lebaka la melemo ena, mocheso oa FEP o honyela o na le mocheso o tlase oa ho honyela mme o ka honyela ka mokhoa o sireletsehileng holim'a lisebelisoa tse thibelang mocheso ntle le tšabo ea ho baka tšenyo.Ka lebaka leo, FEP e loketse ho kenyelletsa likarolo tsa motlakase tse bobebe le lisebelisoa.
Melemo ea PFA
PFA, kapa Perfluoralkoxy, ke mofuta o phahameng oa mocheso oa FEP.PFA e na le thepa e tšoanang le ea FEP empa e ka sebelisoa mochesong oa ho sebetsa ho fihlela ho +260 ° C ha e ntse e ka qhibiliha, ka lebaka la viscosity e tlase e qhibilihang ho feta PTFE.
Ntle le ho natefeloa ke thepa e ikhethang ea li-fluoropolymers, PFA e ikarola ka ho ba le melemo e latelang:
Mocheso o tsoelang pele oa ho sebetsa oa +260 ° C - Ena ke mocheso o phahameng ka ho fetisisa oa ho sebetsa bakeng sa fluoroplastic leha e le efe
1.Ho tjheseletsa le ho bopa botjha bokgoni
2.Good permeability khanyetso
3.Ho hanyetsa lik'hemik'hale tse ntle haholo, esita le ka mocheso o phahameng
4.Bio-e lumellana
5.High bohloeki limaraka fumaneha
6.Mmala o hlakileng
Phoso e kholo ea PFA ke hore e theko e phahameng ho feta PTFE le FEP.
PFA e loketse lits'ebetso tse hlokang boemo bo holimo ba bohloeki, khanyetso e ntle ea lik'hemik'hale le mocheso o phahameng oa ho sebetsa.Fluoroplastic ena e sebelisoa haholo ho li-tubing tsa bongaka, li-heaters tsa mocheso, libaskete tsa semi-conductor, lipompo le lisebelisoa, le li-valve liner.
Mona hoBesteflonre litsebi tsa ho fana ka litharollo tse ncha tsa fluoropolymer bakeng sa lits'ebetso tsa hau tsa tekheniki.Fumana ho eketsehileng ka ronaLihlahisoa tsa Fluoroplastic.
Nako ea poso: Nov-30-2023