Umlando wePolytetrafluoroethylene waqala ngo-Ephreli 6, 1938 eDu Pont's Jackson Laborator eNew Jersey. Ngalelo suku oluzayo, uDkt Roy J. Plunkett, owayesebenza namagesi ahlobene neziqandisini ze-freeon, athola ukuthi isampula elilodwa laline-polymerised ngokuqinile ku-amhlophe, i-waxy iqinile.

Ukuhlola kwabonisa ukuthi le nsimbi yayiyinto emangalisayo kakhulu. Kwakuyi-resin eyamelana nayo yonke amakhemikhali noma i-solvent eyaziwayo; Ingaphezulu layo lalishelelezi kangangokuba cishe alikho into eyayizonamathela kulo; Ama umswakama awenzanga ukuvuvukala, futhi akuzange kuncibilikini noma kube brittle ngemuva kokuchayeka kwesikhathi eside elangeni. Yayinephuzu elincibilikayo lika-327 ° C futhi, ngokungafani nama-thermoplastics ajwayelekile, ngeke ligeleze ngaphezulu kwalelo phuzu elincibilikayo. Lokhu bekusho ukuthi amasu amasha okucubungula bekufanele athuthukiswe ukuze avumelane nezimpawu ze-resin entsha - i-du pont egama linguTeflon.

Amasu wokuboleka avela ku-powder metallurgy, onjiniyela be-du pont bakwazi ukucindezela futhi baphonswe i-polytetrafluorourourourouroetheneneene desin emabhulokini angahle afakwe emnyanweni. Kamuva, ama-distrisions e-resin emanzini athuthukiswa ukumboza indwangu yengilazi futhi enze ama-enamels. Kukhiqizwe i-powder ebingahlanganiswa ne-lubricant futhi ikhishwe ku-coast wire futhi yenziwe ishubhu.

Ngo-1948, eminyakeni eyi-10 ngemuva kokutholwa kwePolytetrafluoroethylene, uDu Pont wayefundisa ubuchwepheshe bokucubungula amakhasimende ayo. Ngokushesha isitshalo sezentengiselwano sasisebenza, futhi ama-polytetrafluoroethylenepylene Ptfe Remins atholakala ngokuhlukaniswa, ama-granular resins kanye ne-powder enhle.

Kungani ukhethe i-PTFE hose?

I-PTFE noma i-polytetrafluoroethlenene ingenye yezinto zokwakha ezingamakhemikhali ezitholakalayo. Lokhu kunika amandla ama-hoses we-PTFE ukuba aphumelele ngaphakathi kwezimboni ezahlukahlukene lapho ama-hoses ensimbi noma ama-ruble amaningi angahluleka. Hlanganisa lokhu futhi uhla lokushisa oluhle kakhulu (-70 ° C kuya ku- + 260 ° C) bese ugcina ne-hose eqinile kakhulu ekwazi ukubekezelela ezinye izindawo ezinzima kakhulu.

Izakhiwo ezingenaxabana ze-PTFE zivumela amanani athuthukisiwe wokugeleza lapho ehambisa izinto ezibonakalayo. Lokhu futhi kunomthelela ekwakhiweni okuhlanzekile okulula futhi empeleni kudala i-liner 'engenzi-stick', ukuqinisekisa ukuthi kwesokunxele ngaphezulu komkhiqizo kungazikhipha noma kumane kugezwe.