Polytetrafluoroethylene (PTFE)i kitea e te tohunga kemu a Dr Roy J. Plunkett i roto i te Whare Taiwhanga o DuPont's Jackson i New Jersey i te tau 1938. I tana whakamatau ki te hanga i tetahi pouaka whakamatao hou CFC, polytetrafluoroethylene polymerized i roto i te ipu putunga pehanga teitei (ko te rino kei te pakitara o roto o te waka ka noho hei whakakōkī mō te tauhohenga polymerization). I whiwhi te kamupene DuPont i tana patent i te 1941 me te rehita i tana tohu i raro i te ingoa o "TEFLON" i te 1944. I muri mai, ka timata a DuPont i tana pakihi i Teflon & reg; I tua atu i te PTFE resin, kua whakawhanakehia e matou he raupapa o nga hua, tae atu ki a Teflon; AF (amorphous fluoropolymer), Teflon; FEP (fluorinated ethylene propylene resin), Teflon; FFR (fluoropolymer foam resin), Teflon; NXT (fluoropolymer resin), Teflon; PFA (perfluoroalkoxy resin) me etahi atu.

whitiki kawe Teflon

Ko nga hua o tenei rauemi e kiia ana ko "te paninga kore rakau"; He momo rauemi polymer waihanga e whakamahi ana i te fluorine hei whakakapi i nga ngota hauwai katoa i roto i te polyethylene. Kei tenei rauemi nga ahuatanga o te aukati waikawa, te parenga kawakore me nga momo whakarewa pararopi, a he tata kore e rewa i roto i nga whakarewa katoa. I te wa ano, ko te polytetrafluoroethylene nga ahuatanga o te awangawanga teitei o te pāmahana, a he iti rawa te whakarea o te waku, na reira ka taea te whakamahi hei whakahinuhinu, ka waiho ano hei paninga pai ki waho i te paraharaha hinu me te paparanga o roto o te paipa wai.

Ka taea te whakamahi i te Teflon i roto i te whitiki kawe: Teflon conveyor belt, Teflon conveyor belt, te kiri makariri te whitiki kawe, te pipeline conveyor belt, te kakahu Teflon, te PTFE te whitiki kakahu, te whitiki whariki, te kakahu whariki kuaha, te kai kawe kai, me etahi atu. whakamahia hoki ki runga i te rīpene: Teflon rīpene whakapiri, Teflon karaihe muka whakapiri riipene, Teflon rīpene ātete pāmahana teitei, te rīpene whakapiri whaiaro, te whakapiri whaiaro kakahu, etc.