Txhua yam khoom ntawm PTFE tau ua lub luag haujlwm tseem ceeb hauv kev lag luam hauv tebchaws xws li kev lag luam tshuaj lom neeg, tshuab, hluav taws xob, khoom siv hluav taws xob, kev lag luam tub rog, aerospace, kev tiv thaiv ib puag ncig thiab txuas hniav.
Tetrafluoroethylene board yog tsim rau qhov kub ntawm -180 ℃ ~ + 250 ℃.Nws yog tsuas yog siv los ua hluav taws xob rwb thaiv tsev cov ntaub ntawv thiab hauv ob sab phlu rau kev sib cuag nrog corrosive media, txhawb sliders, rail seals thiab lubricating cov ntaub ntawv.Nws yog siv nyob rau hauv lub teeb kev lag luam los ntawm nplua nuj txee rooj tog., dav siv nyob rau hauv tshuaj, tshuaj, tshuaj pleev ib ce kev lag luam ntim, cia tso tsheb hlau luam, tshuaj tiv thaiv ntauwd kettles, anti-corrosion hauv ob sab phlu cov ntaub ntawv rau loj pipelines;aviation, tub rog thiab lwm yam kev lag luam hnyav;machinery, kev tsim kho, tsheb ciav hlau choj sliders, coj rails;luam ntawv thiab dyeing, lub teeb kev lag luam, textiles Kev lag luam cov ntaub ntawv los tiv thaiv, thiab lwm yam.
Cov khoom zoo
Kev kub siab ua haujlwm - qhov ua haujlwm kub tuaj yeem ncav cuag 250 ° C.
Tsis tshua muaj kub tsis kam - muaj zoo mechanical toughness;Txawm hais tias qhov kub thiab txias poob rau -196 ° C, nws tuaj yeem tswj tau qhov elongation ntawm 5%.
Corrosion kuj - inert rau feem ntau cov tshuaj thiab cov kuab tshuaj, resistant rau muaj zog acids thiab alkalis, dej thiab ntau yam organic solvents.
Huab cua resistant - muaj lub neej laus tshaj plaws ntawm cov yas.
High lubrication - qhov qis tshaj coefficient ntawm kev sib txhuam ntawm cov khoom siv.
Tsis-adhesion - nws yog qhov tsawg tshaj plaws ntawm qhov nro ntawm cov khoom siv, tsis ua raws li cov khoom siv, thiab nws cov khoom siv tshuab muaj qhov sib txhuam me me, uas tsuas yog 1/5 ntawm polyethylene, uas yog ib qho tseem ceeb ntawm perfluorocarbon. nto.Thiab vim muaj qhov tsis tshua muaj zog ntawm cov fluorine-carbon chains, PTFE tsis nplaum.
Tsis muaj tshuaj lom - nws yog physiologically inert thiab tsis muaj kev phiv tshwm sim thaum implanted nyob rau hauv lub cev raws li ib tug dag cov hlab ntsha thiab lub cev rau lub sij hawm ntev.
Cov khoom hluav taws xob PTFE muaj qhov tsis tshua muaj dielectric tsis tu ncua thiab dielectric poob nyob rau hauv ntau zaus, thiab siab tawg voltage, ntim resistivity thiab arc kuj.
Kev tiv thaiv hluav taws xob Cov hluav taws xob tiv thaiv ntawm polytetrafluoroethylene tsis zoo (104 rads), thiab nws yog degraded los ntawm high-zog hluav taws xob hluav taws xob, thiab hluav taws xob thiab mechanical zog ntawm cov polymer yog txo qis.Daim ntawv thov PTFE tuaj yeem ua tiav los ntawm compression lossis extrusion;Nws kuj tuaj yeem ua rau hauv cov dej dispersion rau txheej, impregnation lossis ua fibers.PTFE yog dav siv nyob rau hauv kub thiab tsis kub resistant, corrosion resistant cov ntaub ntawv, insulating cov ntaub ntawv, anti-stick coatings, thiab lwm yam nyob rau hauv atomic zog, aerospace, electronics, hluav taws xob, tshuaj, machinery, instruments, meters, kev tsim kho, textile, zaub mov thiab lwm yam kev lag luam.
Atmospheric aging kuj: hluav taws xob tiv thaiv thiab tsis tshua muaj permeability: lub sij hawm ntev raug rau huab cua, nto thiab kev ua tau zoo nyob twj ywm tsis hloov.
Tsis-combustibility: Qhov kev txwv cov pa oxygen qis dua 90.
Acid thiab alkali kuj: insoluble nyob rau hauv muaj zog acid, muaj zog alkali thiab organic hnyav.
Oxidation kuj: Nws tuaj yeem tiv taus corrosion ntawm oxidants muaj zog.
Acidity thiab alkalinity: nruab nrab.
Cov khoom siv kho tshuab ntawm PTFE yog qhov muag muag.Nws muaj lub zog qis heev.
Polytetrafluoroethylene (F4, PTFE) muaj ib tug series ntawm kev ua tau zoo heev: kub tsis kam - ntev siv kub 200 ~ 260 degrees, tsis kub tsis kam - tseem mos ntawm -100 degrees;corrosion kuj - tsis kam mus rau aqua regia thiab tag nrho cov organic solvents;Huab cua tsis kam - lub neej kev laus zoo tshaj plaws ntawm cov yas;siab lubricity - qhov tsawg tshaj plaws coefficient ntawm kev sib txhuam (0.04) ntawm cov yas;non-stick - qhov tsawg tshaj plaws ntawm qhov nro ntawm cov khoom siv yam tsis ua raws li cov khoom siv;non-toxic - physiologically inert;Cov khoom hluav taws xob zoo heev, nws yog cov khoom siv zoo tagnrho Class C insulating.
Post lub sij hawm: Jan-17-2023