ʻO ka PTFE a me ka PFA i hoʻokiʻekiʻe ʻia ka mahana wela i ka hoʻohālikelike ʻia me FEP.FEP a me PFA ua maopopo, akā he translucent ka PTFE.ʻOi aku ka maikaʻi o ka FEP a me ka PFA ma ka hoʻohālikelike ʻana me PTFE. ʻO nā ʻokoʻa nui e pili ana i ka inertness kemika, ka pale ʻana i ka corrosion, permeability, a me ka ʻae ʻana o FDA.
Nui nā ʻano fluoropolymers i kēia manawa a he kumu ʻokoʻa ko kēlā me kēia.Hāʻawi nā ʻokoʻa liʻiliʻi i ke ʻano o ka PTFE, FEP a me PFA i nā ʻokoʻa e hāʻawi i kahi ākea o nā waiwai non-stick.
PTFE
ʻO Polytetrafluoroethylene, a i ʻole PTFE, ka mea mua o nā fluoropolymers synthetic i hana ʻia.Hiki paha iā ʻoe ke ʻike i kona inoa inoa kaulana loa, polymer, i hana ʻia e ka hui DuPont.
He maikaʻi ka PTFE no ka hana ʻana i nā ʻāpana lāʻau ʻole ma nā mea i hoʻohana ʻia no ka kuke ʻana a me ka baking.Bullets a me ka lepo ohi ʻōnaehana hoʻohana pū i ka PTFE.He hydrophobic, ʻaʻole e pulu ka wai i ka PTFE e like me ka mea he electronegativity kiʻekiʻe. ʻaʻole hiki i ka moʻo ke pili.
FEP
He ʻokoʻa iki ka Fluorinated ethylene propylene, a i ʻole FEP, me ka PTFE, ʻoiai aia kekahi mau ʻano like ʻole o ka polymer.
ʻOi aku ka palupalu o ka FEP ma mua o ka PTFE a hoʻoheheʻe ʻia ma kahi haʻahaʻa haʻahaʻa no laila ʻaʻole maʻamau ka hoʻohana ʻana i ka kuke ʻana a me ka kuke ʻana. ʻAʻole maopopo loa ka FEP, no laila ʻo nā mea a pau i uhi ʻia e mau nō ke kala like.
PFA
ʻO ka ʻokoʻa nui ma waena o nā alkanes perfluoroalkoxy, PFA, a me PTFE, ʻo ia nā alkoxy substituents e ʻae i ka polymer e hoʻoheheʻe ʻia.
Ma ka pae mole, he liʻiliʻi ka lōʻihi o ke kaulahao i ka PFA i nā fluoropolymers ʻē aʻe. He ʻoi aku ka nui o ke kaulahao ma mua o nā fluoropolymers ʻē aʻe. Loaʻa i ka PFA kahi atom oxygen i kona ʻano.ʻAʻole i loaʻa i nā mea ʻelua kēia. ʻO kēia ʻokoʻa i ka hoʻolālā e hāʻawi i ka PFA i hoʻomaikaʻi ʻia ke kahe, ke kū ʻana o nā kolo a me ke kūpaʻa wela.
PS: E hoʻokaʻaʻike mai iā mākou no ka laʻana manuahi ʻole o nā huahana PTFE
Ka manawa hoʻouna: ʻAukake-24-2017