Nhoroondo yePOLYTETRAFLUOROETHYLENE yakatanga muna Kubvumbi 6, 1938 paDu Pont's Jackson Laboratory muNew Jersey. Pazuva iroro rerombo rakanaka, Dr. Roy J. Plunkett, avo vaishanda nemagasi ane chekuita nemafiriji eFREON, vakaona kuti sample imwe yakanga yangozozvikandira kuchena, ine waxy solid.

Kuedzwa kwakaratidza kuti ichi chakasimba chaive chinhu chinoshamisa. Yaiva resin yairamba makemikari ose anozivikanwa kana zvinonyungudutsa; pamusoro payo paitsvedza zvekuti hapana chinhu chinganamira pachiri; mwando hahuna kuita kuti izvimbe, uye haina kudzikisira kana kuita brittle mushure mekusangana nechiedza chezuva kwenguva refu. Yakanga iine nzvimbo yekunyunguduka ye327 ° C uye, kusiyana neyakajairwa thermoplastics, yaisazoyerera pamusoro peiyo nzvimbo yekunyungudika. Izvi zvaireva kuti maitiro matsva ekugadzirisa aifanira kugadzirwa kuti aenderane nehunhu hweiyo resin nyowani - iyo Du Pont yakatumidza TEFLON.

Maitiro ekukwereta kubva paupfu simbi, mainjiniya eDu Pont akakwanisa kudzvanya uye sinter POLYTETRAFLUOROETHYLENE resin kuita mabhuroko anogona kugadzirwa kugadzira chero chimiro chaidiwa. Gare gare, kuparadzirwa kweresin mumvura kwakagadzirwa kuti ipfeke girazi-jira uye kugadzira enamel. Pakagadzirwa poda yaigona kusanganiswa nerubricant yokwizwa kuti ipfeke waya uye kugadzira tubing.

Pakazosvika 1948, makore gumi mushure mekuwanikwa kwePOLYTETRAFLUOROETHYLENE, Du Pont aidzidzisa tekinoroji yekugadzira kune vatengi vayo. Nenguva isipi chigadzirwa chekutengesa chakashanda, uye POLYTETRAFLUOROETHYLENE PTFE resins yakave inowanikwa mu dispersions, granular resins uye poda yakanaka.

Sei uchisarudza PTFE Hose?

PTFE kana Polytetrafluoroethylene chimwe chezvinhu zvinodzivirira kemikari zviripo. Izvi zvinoita kuti PTFE hoses ibudirire mukati memhando dzakasiyana-siyana dzemaindasitiri umo mamwe echinyakare esimbi kana erabha hose anogona kutadza. Patanidza izvi pamwe uye tembiricha yakanakisa (-70 ° C kusvika +260 ° C) uye unozopedzisira wava nepombi yakasimba kwazvo inokwanisa kutsungirira dzimwe nharaunda dzakaomarara.

Iyo isina frictional properties yePTFE inobvumira yakavandudzwa kuyerera kwemazinga kana uchitakura viscous zvinhu. Izvi zvinobatsirawo kune dhizaini iri nyore-yakachena uye inogadzira 'isina-tsvimbo' liner, kuve nechokwadi kuti chasara chigadzirwa chinogona kuzvinyura kana kungoshambidzwa.