Guddiga PTFE (oo sidoo kale loo yaqaan guddiga PTFE, guddiga Teflon, guddiga Teflon) wuxuu u qaybsan yahay laba nooc: naqshadeynta iyo leexinta.Alaabooyinkeeda si ballaaran ayaa loo isticmaalaa waxayna leeyihiin sifooyin dhammaystiran oo aad u sarreeya: iska caabin heerkul sarreeya iyo mid hooseeya (-192 ° C-260 ° C), iska caabbinta daxalka (acid xooggan, alkali xooggan, aqua regia, iwm.), caabbinta cimilada, dahaarka sare, lubrication sare, non-adhesion, Non-sun iyo sifooyin kale oo aad u fiican.Polytetrafluoroethylene (soo gaabinta Ingiriisi waa Teflon ama [PTFE, F4]), oo loo yaqaan / caadi ahaan loo yaqaan "King Plastic", magaca ganacsiga Shiinaha "Teflon", "Teflon" (teflon), "Teflon" , "Teflon", "Teflon" iyo wixi la mida.
Waa unug unugyo sare leh oo polymerized by tetrafluoroethylene, qaabdhismeedkeeda la fududeeyayna waa -[-CF2-CF2-] n-, kaas oo leh xasilooni kiimiko oo heer sare ah iyo iska caabbinta daxalka (polytetrafluoroethylene waxaa loo yaqaan PTFE ama F4, waa mid ka mid ah daxalka ugu badan). Qalabka adkaysiga u leh adduunka maanta, "Plastic King" waxaa caadi ahaan loo yaqaan polytetrafluoroethylene, waa caag leh caabbinta ugu fiican ee daxalka. iyada, sidaas awgeed waxa loogu magac daray King Plastic, waxay u adkaysataa dhammaan kiimikooyinka kale marka laga reebo birta dhalaalaysa ee sodium iyo fluorine dareere ah, aan dhejisnayn, dahaarka korantada iyo caabbinta gabowga wanaagsan, caabbinta heerkul aad u fiican (waxay shaqayn kartaa wakhti dheer heerkulka +250°C ilaa -180°C) PTFE lafteedu maaha kuwo sun ku ah bini’aadamka, laakiin waxa loo adeegsadaa habka wax-soo-saarka Mid ka mid ah alaabta ceeriin ee perfluorooctanoate ammonium (PFOA) ayaa loo arkaa inuu yahay kansar suurtagal ah.
Heerkulka -20～250°C (-4～+482°F), oo u oggolaanaya qaboojin degdeg ah iyo kuleyl degdeg ah, ama hawlgal beddel ah oo qabow iyo kulayl ah.
Cadaadis -0.1～6.4Mpa (Full vacuum ilaa 64kgf/cm2) (Full vacuum ilaa 64kgf/cm2)
Wax soo saarkeedu waxa uu xalliyay dhibaatooyin badan oo ka jiray dhinacyada warshadaha kiimikada, batroolka iyo dawooyinka dalkeena.Xirmooyinka PTFE, gaskets, gaskets, shaabadihii PTFE, iyo gaskets waxay ka samaysan yihiin hakin polymerized PTFE resin moolding.Marka la barbar dhigo balaastikada kale, PTFE waxay leedahay sifooyinka caabbinta daxalka kiimikada, waxaana si ballaaran loo isticmaalay sida shaabadeynta iyo walxaha buuxinta.
Qalabkeeda kulaylka ah ee dhamaystiran ee ku saabsan 500 darajo Celsius waxaa ka mid ah tetrafluoroethylene, hexafluoropropylene iyo octafluorocyclobutane, kuwaas oo qurxin doona gaasaska fluorine-ku ku jiro ee heerkul sare leh.
Waqtiga boostada: Jan-17-2023