Imbali ye-POLYTETRAFLUOROETHYLENE yaqala ngo-Aprili 6, 1938 eDu Pont's Jackson Laboratory eNew Jersey.Ngolo suku lwethamsanqa, uGqr. Roy J. Plunkett, owayesebenza ngeegesi ezinxulumene neFREON refrigerants, wafumanisa ukuba isampulu enye ipholymerised ngokuzenzekelayo ukuya kumhlophe, okuqinileyo kwe-waxy.

Uvavanyo lubonise ukuba esi siqina sisixhobo esiphawuleka kakhulu.Yayiyintlaka ekwaziyo ukumelana nayo yonke imichiza okanye isinyibilikisi esaziwayo;ubuso bawo babumtyibilizi kangangokuba akukho nto inokubambelela kuwo;ukufuma akuzange kubangele ukuba idumbe, kwaye ayizange ithobeke okanye ibe rhabaxa emva kokuchanabeka ixesha elide elangeni.Yayinendawo yokunyibilika ye-327 ° C kwaye, ngokuchasene ne-thermoplastics eqhelekileyo, ayiyi kuhamba ngaphezu kwelo nqanaba lokunyibilika.Oku kuthetha ukuba iindlela ezintsha zokusetyenzwa kufuneka ziphuhliswe ukuze zihambelane neempawu zentlaka entsha - leyo uDu Pont wayibiza ngokuba yiTEFLON.

Iindlela zokuboleka kwi-powder metallurgy, iinjineli zaseDu Pont zazikwazi ukucinezela kunye ne-sinter POLYTETRAFLUOROETHYLENE resins kwiibhloko ezinokuthi zenziwe ngoomatshini ukwenza nayiphi na imilo efunekayo.Emva kwexesha, i-resin emanzini yaphuhliswa ukuze igqume ilaphu leglasi kwaye yenze i-enamels.Kwaveliswa umgubo onokuthi udityaniswe nesithambiso kwaye ukhutshelwe ukogquma ucingo kunye nokwenza iityhubhu.

Ngo-1948, iminyaka eyi-10 emva kokufunyanwa kwe-POLYTETRAFLUOROETHYLENE, uDu Pont wayefundisa iteknoloji yokucubungula kubathengi bayo.Kungekudala isityalo sorhwebo sasisebenza, kwaye i-POLYTETRAFLUOROETHYLENE PTFE resins yafumaneka kwii-dispersions, i-granular resins kunye ne powder fine.

Kutheni ukhetha iHose ye-PTFE?

I-PTFE okanye iPolytetrafluoroethylene yenye yezinto ezixhathisayo kwikhemikhali ekhoyo.Oku kwenza ukuba imibhobho ye-PTFE iphumelele phakathi koluhlu olubanzi lwamashishini apho imibhobho yesinyithi okanye irabha engaphezulu inokusilela.Dibanisa oku kunye noluhlu olugqwesileyo lobushushu (-70 ° C ukuya +260 ° C) kwaye ugqibela ngombhobho owomelele kakhulu okwaziyo ukumelana nezona ndawo zinzima.

Iipropati ezingenakukhuhlane ze-PTFE zivumela amazinga okuhamba okuphuculweyo xa kuthuthwa imathiriyeli ye-viscous.Oku kukwanegalelo kuyilo olucoceke ngokulula kwaye ngokuyimfuneko yenze ilineni 'engadibaniyo', ukuqinisekisa ukuba imveliso eshiyekileyo inokuzikhupha okanye ikhukuliswe ngokulula.