Keeb kwm ntawm POLYTETRAFLUOROETHYLENE pib thaum lub Plaub Hlis 6, 1938 ntawm Du Pont's Jackson Laboratory hauv New Jersey.Nyob rau hnub muaj hmoo, Dr. Roy J. Plunkett, uas tau ua haujlwm nrog cov roj cua ntsig txog FREON refrigerants, nrhiav pom tias ib qho piv txwv tau polymerised spontaneously mus rau dawb, waxy khoom.

Kev ntsuam xyuas pom tau tias cov khoom no yog cov khoom siv zoo heev.Nws yog ib qho resin uas tiv taus txhua yam tshuaj los yog hnyav;nws nto yog nplua heev uas yuav luag tsis muaj cov khoom yuav lo rau nws;noo noo tsis ua rau nws o, thiab nws tsis degrade los yog nkig tom qab lub sij hawm ntev raug tshav ntuj.Nws muaj qhov melting point ntawm 327 ° C thiab, tsis zoo li cov khoom siv thermoplastics, nws yuav tsis ntws saum lub melting point.Qhov no txhais tau hais tias cov txheej txheem tshiab yuav tsum tau tsim kom haum rau cov yam ntxwv ntawm cov resin tshiab - uas Du Pont hu ua TEFLON.

Kev qiv nyiaj los ntawm cov hmoov hlau metallurgy, Du Pont engineers muaj peev xwm compress thiab sinter POLYTETRAFLUOROETHYLENE resins rau hauv cov blocks uas tuaj yeem ua machined los ua ib qho kev xav tau.Tom qab ntawd, dispersions ntawm resin nyob rau hauv dej tau tsim los rau lub tsho iav-daim ntaub thiab ua enamels.Cov hmoov tau tsim tawm uas tuaj yeem sib xyaw nrog cov roj nplua nyeem thiab extruded rau lub tsho hlau thiab tsim cov tubing.

Los ntawm 1948, 10 xyoo tom qab qhov kev tshawb pom ntawm POLYTETRAFLUOROETHYLENE, Du Pont tau qhia kev siv tshuab rau nws cov neeg siv khoom.Tsis ntev tom qab cog kev lag luam tau ua haujlwm, thiab POLYTETRAFLUOROETHYLENE PTFE resins tau muaj nyob rau hauv dispersions, granular resins thiab hmoov zoo.

Vim li cas thiaj xaiv PTFE Hose?

PTFE lossis Polytetrafluoroethylene yog ib qho ntawm cov khoom siv tshuaj tiv thaiv zoo tshaj plaws.Qhov no ua rau PTFE hoses ua tiav nyob rau hauv ntau qhov kev lag luam uas ntau cov khoom siv hlau lossis roj hmab hoses yuav ua tsis tiav.Ua ke qhov no nrog thiab kub zoo heev (-70 ° C txog + 260 ° C) thiab koj xaus nrog lub hose ruaj khov uas muaj peev xwm tiv taus qee qhov chaw hnyav tshaj plaws.

Cov khoom tsis muaj kev sib txhuam ntawm PTFE tso cai rau cov neeg khiav dej num zoo dua thaum thauj cov khoom khov.Qhov no kuj tseem ua rau kev tsim qauv yooj yim huv thiab qhov tseem ceeb tsim cov 'tsis-stick' liner, kom ntseeg tau tias cov khoom seem tuaj yeem ntws los ntawm tus kheej lossis tsuas yog ntxuav tawm.