Dab Tsi Nws Fluorinated Ethylene Propylene (FEP)?

Fluorinated ethylene propylene los yog FEP yog ib tug copolymer ntawm hexafluoropropylene thiab tetrafluoroethylene . Nws txawv ntawm PTFE ( polytetrafluoroethylene ) resins nyob rau hauv uas nws yog yaj-processable siv pa tshuaj molding thiab cov ciav hlau extrusion kev fais fab.Fluorinated ethylene propylene tau tsim los ntawm DuPont thiab yog muag raws li lub npe Teflon FEP. Lwm hom npe yog Neoflon FEP los ntawm Daikin los yog Dyneon FEP los ntawm Dyneon / 3M.

FEP yog qhov zoo sib xws hauv cov khoom xyaw rau cov fluoropolymers   PTFE (polytetrafluoroethylene) thiab PFA (perfluoroalkoxy polymer cob) . FEP thiab PFA ob leeg sib koom PTFE qhov tseem ceeb ntawm cov kev sib txhuam thiab kev tsis ua haujlwm, tab sis yooj yim dua. FEP yog softer tshaj PTFE thiab melts ntawm 260 ° C; nws yog pob tshab thiab tiv taus lub hnub ci

Cov Khoom:

FEP yog tsim los ntawm dawb-radical   polymerization ntawm mixtures ntawm tetrafluoroethylene thiab hexafluoropropylene . Cov dej sib tov yog tsim kom tau nyiaj pab rau qhov tsis tshua muaj reactivity ntawm propylene tivthaiv. Tus txheej txheem yog feem ntau pib nrog peroxydisulfate , uas homolyzes los ua cov sulfate radicals. Vim tias FEP tsis zoo rau txhua tus kuab, cov polymerization yog ua raws li cov emulsion hauv dej, feem ntau siv cov surfactant xws li PFOS . Lub polymer muaj txog li 5% ntawm cov tshuaj propylene

Kev sib piv ntawm cov PTFE tawm tsam FEP, PFA thiab ETFE muaj nyob rau hauv DuPont lub website, teev cov khoom siv thaij, thermal, tshuaj, hluav taws xob thiab pa txhua yam, sab ntawm sab.

Nyob rau hauv cov nqe lus ntawm corrosion ua hauj, FEP yog tsuas yog lwm yam muaj fluoropolymer uas muaj peev xwm sib phim PTFE tus kheej tsis kam mus rau cov neeg ua hauj lwm caustic, raws li nws yog ib tug qauv pure carbon-fluorine thiab tag nrho fluorinated.

Phem, FEP sawv tawm ntawm PTFE thiab PFA los ntawm qhov nruab nrab ntawm 260 ° C (500 ° F), nyob ib ncig ntawm plaub caug qis tshaj PFA thiab qis dua PTFE.

Electrically, PTFE, FEP thiab PFA muaj qhov sib thooj dielectric zoo sib xws, tab sis FEP lub dielectric zog tsuas yog dhau los ntawm PFA. Txawm li cas los xij, thaum PFA muaj qhov zoo sib xws rau PTFE, FEP qhov kev xa tawm yog nyob rau lub sij hawm PFA thiab EFTE (ua rau nws tsis yog tus neeg tsis paub cai ntawm electrostatic teb).

Mechanically, FEP yog me ntsis yooj ywm dua PTFE. Kab tias kuj ceeb tias, nws tsis tau nrog repetitive folding li PTFE. Nws tseem muaj peev txheej ntau dua ntawm kev sib zog ntawm kev sib txhuam, nws yog softer thiab nws muaj zog me ntsis qis dua PTFE thiab PFA.

Ib qhov tseemceeb ntawm FEP yog tias nws zoo tshaj plaws rau PTFE hauv qee cov txheej txheem txheej txheem uas cuam tshuam nrog txhaws hniav.

Ethylene tetrafluoroethylene (ETFE), muaj ntau txoj hauv kev, muaj peev xwm xav tias yog mus rau ib pab pawg sib txawv, raws li nws yog ib qho tseem ceeb ntawm lub siab muaj zog engineering ntawm lwm tus neeg uas muaj feem yuav xav tau me ntsis diminished zog nyob rau lwm qhov teb thaum piv nrog PTFE, FEP thiab PFA.

Cov ntawv thov:

Zoo li PTFE, FEP yog siv los thaiv, xws li, hookup hlau, coaxial cable, thaiv rau lub xov tooj ntawm lub xov tooj thiab cov iav technical.Ib illustrative kawg khoom yog rau coaxial cables zoo li RG-316.

Hauv kev tsim cov cuab yeej zoo, xws li hauv cov kev lag luam aerospace, FEP film yuav siv tau los tiv thaiv cov pwm thaum lub sijhawm kev kho. Nyob rau hauv xws li daim ntawv sau npe, zaj duab xis yog hu ua "tso tawm zaj duab xis" thiab yog npaj los tiv thaiv lub curing nplaum polymer (xws li epoxy nyob rau hauv cov roj carbon fiber / epoxy daim laminate) los ntawm tsevneeg mus rau cov cuab yeej hlau. Ua kom muaj peev xwm tswj tau tshuaj lom neeg hauv dej txias thiab tiv thaiv kev puas tsuaj los ntawm kev siv tshuaj yeeb dej cawv ntxiv ua rau FEP qhov kev xaiv tsim nyog hauv kev lag luam.

Cov khoom siv ua haujlwm xws li cov kav dej, cov voj voog, thiab cov ntawv txhim kho cov nkoj ntim, cov pa roj hmab, thiab cov tsheb thauj khoom siv rau hauv ntau hom kev siv hauv kev ua tshuaj lom neeg ua haujlwm kom muaj kev nyab xeeb thiab faib cov tshuaj lom neeg muaj roj.

Vim nws yooj, huab tsis kam mus tshuaj tua kab mob thiab qhov muag pleev qhov muag, cov ntaub ntawv no, nrog rau   PFA yog niaj zaus siv rau cov khoom siv yas yas thiab cov tub luam uas muaj cov txheej txheem tseem ceeb los sis muaj zog heev. Brand GmbH, Finemech, Savillex thiab Nalgene yog cov neeg paub zoo tshaj plaws uas ua rau nws siv ob yam khoom siv (Tshooj no citzed ntawm Wikipedia)

Guanghai hluav taws kub tsev hluav taws xob khoom Co., Ltd kev nyob hauv hom rwb thaiv tsev thiab PVC coated webbing, xav tau cov khoom no, thov koj xav tiv tauj peb .Ntawm koj!