Ubuyobozi bwa PTFE (buzwi kandi nk'ubuyobozi bwa PTFE, ikibaho cya Teflon, ikibaho cya Teflon) bugabanijwemo ubwoko bubiri: kubumba no guhindukira.Ibicuruzwa byayo bikoreshwa cyane kandi bifite imiterere irenze urugero yuzuye: irwanya ubushyuhe bwo hejuru kandi buke (-192 ° C-260 ° C), kurwanya ruswa (aside ikomeye, alkali ikomeye, aqua regia, nibindi), kurwanya ikirere, kubika cyane, amavuta menshi, kudafatana, Ntabwo ari uburozi nibindi byiza biranga.Polytetrafluoroethylene (mu magambo ahinnye y'Icyongereza ni Teflon cyangwa [PTFE, F4]), azwi ku izina rya / bakunze kwita “Plastic King”, izina ry'ubucuruzi ry'Ubushinwa “Teflon”, “Teflon” (teflon), “Teflon”, “Teflon”, “Teflon” n'ibindi.
Nibintu byinshi bya molekuline byuzuye polymerized na tetrafluoroethylene, kandi imiterere yoroshye ni - [- CF2-CF2-] n-, ifite imiti ihamye kandi irwanya ruswa (polytetrafluoroethylene yitwa PTFE cyangwa F4, nimwe mubishobora kwangirika cyane -ibikoresho bidashobora kwangirika kwisi muri iki gihe, "King Plastic King" bakunze kwita polytetrafluoroethylene, ni plastiki ifite imbaraga zo kurwanya ruswa. Ntabwo iterwa na acide izwi, alkalis, umunyu, okiside Ruswa, ndetse na aqua regia ntacyo ikora. hamwe na yo, bityo yitwa umwami wa pulasitike. Irwanya indi miti yose usibye sodium yicyuma gishongeshejwe hamwe na fluor fluor. + 250 ° C kugeza kuri -180 ° C) PTFE ubwayo ntabwo ari uburozi kubantu, ariko ikoreshwa mugikorwa cyo kubyaza umusaruro Kimwe mubikoresho fatizo bya amfonium ya perfluorooctanoate (PFOA) ifatwa nka kanseri ishobora kuba.
Ubushyuhe -20 ～ 250 ° C (-4 ～ + 482 ° F), butuma ubukonje butunguranye n'ubushyuhe butunguranye, cyangwa ubundi buryo bwo gukonja n'ubushyuhe.
Umuvuduko -0.1 ～ 6.4Mpa (Icyuho cyuzuye kugeza 64kgf / cm2) (Icyuho cyuzuye kugeza 64kgf / cm2)
Umusaruro wacyo wakemuye ibibazo byinshi mubijyanye ninganda zikora imiti, peteroli na farumasi mugihugu cyacu.Ikidodo cya PTFE, gaseke, gasketi, kashe ya PTFE, hamwe na gasketi bikozwe muburyo bwo guhagarika polymerized PTFE resin molding.Ugereranije n’ibindi bikoresho bya plastiki, PTFE ifite ibiranga imiti irwanya ruswa, kandi yakoreshejwe cyane nko gufunga ibikoresho no kuzuza ibikoresho.
Ibicuruzwa byuzuye byangiza ubushyuhe kuri dogere selisiyusi 500 harimo tetrafluoroethylene, hexafluoropropylene na octafluorocyclobutane, izabora imyuka ya florine irimo ruswa cyane mubushyuhe bwinshi.
Igihe cyo kohereza: Mutarama-17-2023