Bakeng sa dimithara tsa phallo ya motlakase, ke maemo afe a tshebetso a loketseng lesela la rabara, lesela la PTFE le lesela la PFA ka ho latellana?

1. Rabara (Tlhaho/Neoprene/CR)
E loketseng bakeng sa: Morero o akaretsang, mafome a tlase ho isa ho a mahareng, metsi a metsi, le lerōle le nang le ho khohlela ho fokolang.
Mocheso: Ka tloaelo - 10 °C ho isa ho +80 °C (maeto a makgutshwane ho isa ho 90 °C).
Ho senyeha ha metsi: E hanela metsi a hloekileng, metsi a litšila, metsi a leoatle, likhoerekhoere, li-acid/base tse fokolang (pH 4-10), le oli.
Ho kgohlahala: E mahareng; e loketse ho kgohlahala hanyane, pampiri e teteaneng, le masala a merafo (dintho tse tiileng tse tlase).
Khatello: Ho fihlela ho PN16–PN25 (1.6–2.5 MPa).
Meeli: Hase bakeng sa li-acid tse matla, metheo e matla, li-solvents, kapa mocheso o phahameng; ho ruruha ha li-hydrocarbon.
Liindasteri: Metsi/metsi a litšila, masepala, HVAC, ts'ebetso e akaretsang, merafo (ho senyeha ho tlase).
2. PTFE (Polytetrafluoroethylene, Teflon®)
E loketseng bakeng sa: Metsi a senyang haholo, mocheso o phahameng, le maro a sa halefeng.
Mocheso: -40 °C ho isa ho +130 °C (e tloaelehileng); -200 °C ho isa ho +200 °C (tlhoro, nako e lekanyelitsoeng).
Ho senyeha ha dintho: E ntle haholo—e hanela di-acid tse kopaneng (HCl, H₂SO₄, HNO₃), metheo e matla (NaOH, KOH), di-oxidizer (NaClO, H₂O₂), le di-solvent tse ngata tsa tlhaho.
Ho senyeha ha letlalo: Ha ho matla—qoba lintho tse tiileng, lehlabathe, kapa likaroloana tse thata.
Khatello: Ho fihlela ho PN25 (2.5 MPa); eseng bakeng sa khatello ea vacuum/negative (kotsi ea ho putlama).
Meeli: Ho robeha habonolo, ho hanyetsa ho kgohlahala ho tlase, ho se mamelle ho lekaneng ha vacuum; ho hlaseloa ke dimethale tsa alkali tse qhibilihisitsweng, kgase ya fluorine, ClF₃.
Liindasteri: Ts'ebetso ea lik'hemik'hale, petrochemical, meriana, ho poleiti, metsi a litšila (a senyang haholo).
3. PFA (Perfluoroalkoxy, “PTFE e Fetotsoeng”)
Molemo ka ho fetisisa bakeng sa: Ts'ebeliso e hloekileng haholo, mocheso o phahameng, le e senyang haholo (ntlafatsa holim'a PTFE).
Mocheso: -40 °C ho isa ho +180 °C (e tsoelang pele); litlhōrō tse khutšoanyane ho isa ho 200 °C.
Ho senyeha ha mafome: E lekana le PTFE—e hanela mecha eohle ea phatlalatso e tsamaellanang le PTFE; ho ntsha ha ion ea tšepe e tlaase haholo (<1 ppb).
Ho abrasion: E betere ho feta PTFE (e ntse e le mahareng); e loketse lintho tse tiileng tse tlase ho isa ho tse mahareng.
Khatello: Ho fihlela ho PN40 (4.0 MPa); khanyetso e ntle ea khatello ea vacuum/negative.
Mekaniki: E tenyetseha, e tiile, e hanela ho thekesela; e ka hokahanngoa ka mocheso le phaephe (ha ho na ho qhekelloa); khetho e bonaletsang/e fetolang khanya e fumaneha.
Ho latela Melao: FDA, 3‑A, EHEDG, ASME BPE (maemo a bohloeki/bohloeki bo phahameng).
Meeli: Litšenyehelo tse phahameng (3–5× PTFE); mekhelo e tšoanang ea lik'hemik'hale joaloka PTFE.
Liindasteri: Semiconductor (metsi/lik'hemik'hale tse hloekileng haholo), biotech/meriana (e sa hloekang/CIP/SIP), lijo/lino (ho hloekisa mocheso o phahameng), matla a letsatsi le mekhoa e tsoetseng pele ea lik'hemik'hale.