ʻO ka papa PTFE (ka mea i ʻike ʻia ʻo PTFE papa, Teflon papa, Teflon papa) ua māhele ʻia i ʻelua ʻano: hoʻoheheʻe a huli.Hoʻohana nui ʻia kāna mau huahana a loaʻa iā ia nā waiwai piha ʻoi aku ka maikaʻi: ke kūpaʻa kiʻekiʻe a me ka haʻahaʻa haʻahaʻa (-192 ° C-260 ° C), ke kūpaʻa corrosion (ka waikawa ikaika, ka alkali ikaika, aqua regia, a me nā mea ʻē aʻe). ka lubrication kiʻekiʻe, non-adhesion, Non-toxic a me nā ʻano maikaʻi ʻē aʻe.ʻO Polytetrafluoroethylene (ʻo Teflon ka pōkole English a i ʻole [PTFE, F4]), i ʻike ʻia ʻo "Plastic King", inoa kālepa Kina "Teflon", "Teflon" (teflon), "Teflon" , "Teflon", "Teflon" a laila.
He hui mole kiʻekiʻe ia i polymerized e ka tetrafluoroethylene, a ʻo kona ʻano maʻalahi ʻo -[-CF2-CF2-]n-, nona ka paʻa kemika maikaʻi loa a me ke kūpaʻa ʻino (polytetrafluoroethylene i kapa ʻia ʻo PTFE a i ʻole F4, ʻo ia kekahi o ka corrosion nui loa. ʻO nā mea kū'ē i ka honua i kēia mau lā, ʻo "Plastic King" ka mea maʻamau i kapa ʻia he polytetrafluoroethylene, he plastic me ka maikaʻi o ka pale ʻana i ka corrosion. me ia, no laila ua kapa ʻia ʻo ia ke aliʻi plastic. He kūpaʻa ia i nā mea kemika ʻē aʻe koe wale nō ka sodium metala hoʻoheheʻe ʻia a me ka fluorine wai. + 250 ° C i -180 ° C) ʻAʻole ʻona ʻo PTFE ponoʻī i ke kanaka, akā hoʻohana ʻia ia i ka hana hana ʻO kekahi o nā mea maka o ka perfluorooctanoate ammonium (PFOA) i manaʻo ʻia he carcinogen hiki ke loaʻa.
ʻO ka wela -20～250°C (-4～+482°F), e ʻae ana i ka hoʻolili koke a me ka hoʻomehana ʻana, a i ʻole ka hana ʻokoʻa o ke anu a me ka wela.
Pumi -0.1～6.4Mpa (Māmā piha i 64kgf/cm2) (Māmā piha i 64kgf/cm2)
Ua hoʻopau kāna hana ʻana i nā pilikia he nui i ka ʻoihana kemika, ka ʻaila a me nā lāʻau lapaʻau i ko mākou ʻāina.PTFE sila, gaskets, gaskets, PTFE sila, a me gaskets ua hana ia o ka hoʻokuʻu polymerized PTFE resin molding.Ke hoʻohālikelike ʻia me nā plastics ʻē aʻe, loaʻa i ka PTFE nā hiʻohiʻona o ke kūpaʻa corrosion kemika, a ua hoʻohana nui ʻia ʻo ia e like me ka hoʻopaʻa ʻana a me ka hoʻopiha piha.
ʻO kāna mau huahana hoʻoheheʻe wela piha ma kahi o 500 degere Celsius he tetrafluoroethylene, hexafluoropropylene a me ka octafluorocyclobutane, ka mea e hoʻoheheʻe i nā kinoea i loaʻa i ka fluorine corrosive i nā wela kiʻekiʻe.
Ka manawa hoʻouna: Jan-17-2023