PTFE muaj qhov kub thiab txias tsis kam (tuaj yeem siv nyob rau hauv qhov kub ntawm 200 ~ 260 degree rau lub sijhawm ntev), qhov kub thiab txias tsis kam (tuaj yeem siv tau ntev hauv qab -100 degree), corrosion resistance (siab tshuaj inertness. ), huab cua tsis kam (siab tsis kam mus rau Atmospheric aging kev ua tau zoo), siab lubrication (nrog me me coefficient ntawm kev sib txhuam), tsis-nplaum (tsis tshua muaj deg nro, tsis yooj yim rau adhere), zoo tib neeg compatibility (zoo heev physiological inertia, tsis. -toxic), hluav taws xob rwb thaiv tsev Zoo (cov rwb thaiv tsev siab, thiab tsis cuam tshuam los ntawm qhov kub thiab txias) thiab cov txiaj ntsig zoo hauv kev siv, cov yam ntxwv ntawm PTFE yog ze ze rau nws cov molecular configuration.
Cov qauv molecular ntawmPTFEzoo ib yam li polyethylene. Nws yog symmetrical thiab unbranched linear polymer, yog li cov molecule tsis pom polarity, raws li qhia hauv daim duab hauv qab no:
Vim muaj kev sib tw muaj zog ntawm cov fluorine atoms uas tsis muaj kev sib koom ua ke hauv cov molecules, cov saw hlau ntawm PTFE yog twisted los tsim cov qauv helical, thiab cov fluorine atoms tsuas yog npog cov saw tseem ceeb ntawm carbon atoms, uas tiv thaiv cov pa roj carbon atoms los ntawm kev cuam tshuam nrog. lwm yam khoom. teb. Tsis tas li ntawd, fluorine-carbon daim ntawv cog lus muaj lub zog siab heev ntawm 466KJ / mol, uas yog qhov siab tshaj plaws ntawm tag nrho cov tshuaj ib leeg, yog li kev ruaj ntseg ntawm PTFE yog siab heev.
Daim ntawv thov
Tshuaj teb
PTFE tsis yaj los yog swells nyob rau hauv tej yam kua paub, yog li PTFE qhov chaw yuav tsis hloov nyob rau hauv loj txawm tias ntev npaum li cas lawv siv nyob rau hauv tej corrosive nruab nrab. Loj nyias-walled ntim ua los ntawm PTFE yog dav siv nyob rau hauv lub sij hawm ua hauj lwm ntawm lub chaw soj nstuam thiab factories siv corrosive kua. Tsis tas li ntawd, nws kuj tau siv dav hauv cov ntsaws ruaj ruaj, yeeb nkab hauv ob sab phlu, twj, li qub, thiab lwm yam.
Mechanical teb
Tsis muaj teeb meem dab tsi ntawm cov cuab yeej siv kho tshuab, qhov sib txuas zawv zawg qhov chaw yuav tsum tau lubricated thaum lub sijhawm ua haujlwm kom txo tau qhov kev sib txhuam, txo qhov hnav thiab kub ntawm qhov chaw, thiab xyuas kom muaj peev xwm ua haujlwm ib txwm muaj, precision thiab lub zog noj ntawm cov cuab yeej siv tshuab. PTFE tsis tshua muaj coefficient ntawm kev sib txhuam thiab nws tus kheej-lubricating zog ua rau nws lug siv nyob rau hauv lub tsim ntawm bearings, piston rings, tshuab cuab yeej qhia rails thiab sealing cov ntaub ntawv. Txawm li cas los xij, vim nws cov nqi siab, nws feem ntau yog siv hauv cov cuab yeej precision lossis ib puag ncig uas yuav tsum tau muaj kua qaub thiab alkali tsis kam.
Hluav taws xob teb
PTFE muaj cov khoom siv hluav taws xob zoo heev uas ua rau muaj kev ywj pheej ntawm qhov kub thiab txias, thiab tib lub sijhawm muaj thermal stability siab heev, yog li nws tau dhau los ua cov khoom siv hluav taws xob uas tsis muaj hluav taws xob, tshwj xeeb tshaj yog nyob rau hauv high zaus, kub thiab noo ib puag ncig nruab nrab.
Ntau hom PTFE cov ntaub ntawv ua lub luag haujlwm tseem ceeb hauv thaj chaw hluav taws xob thiab hluav taws xob rwb thaiv tsev niaj hnub no. PTFE iav kua roj vanish thiab iav ntaub yog siv los ua cov ntaub ntawv kub thiab cov khoom siv hluav taws xob ntau zaus, uas tuaj yeem siv hauv kev sib txuas lus satellite thiab khoos phis tawj; PTFE films yog siv los ua capacitors, raws li insulating txheej, gaskets, cables, thiab lwm yam ntawm cov twj paj nruag; PTFE nyias cov yeeb yaj kiab ntawm cov kab sib txawv Cov kav dej ntawm phab ntsa yog feem ntau siv rau cov hlau lead hlau casing, cov yeeb nkab kub shrinkable thiab kauv yeeb nkab, cov yeeb nkab dej insulating ntawm lub tshuab hluav taws xob, thiab lwm yam.
Kev tsim kho teb
PTFE membrane qauv yog ib daim ntawv tshiab ntawm architectural qauv, uas integrates architecture, structural mechanics, zoo tshuaj kev lag luam, khoom siv science thiab computer technology, thiab muaj ib tug high school cov ntsiab lus.
Los ntawm txheej PTFE resin rau ntawm cov iav fiber ntau zoo, cov khoom siv PTFE membrane yog lub teeb hauv qhov hnyav, siab zog, hluav taws-resistant thiab nplaim-retardant, zoo nyob rau hauv tus kheej-tu khoom, tsis cuam tshuam los ntawm ultraviolet rays, qaug zog-resistant. , twist-resistant, aging-resistant, thiab muaj kev pab lub neej ntev. Lub teeb transmittance, tsis tshua muaj cua sov nqus cov yam ntxwv. Nws yog precisely vim hais tias ntawm invention ntawm no cross-hnub nyoog membrane cov ntaub ntawv uas lub membrane qauv tsev tau los ua ib tug niaj hnub mus tas li lub tsev.
Kev kho mob teb
PTFE yog dej-resistant, physiologically inert thiab tsis-nplaum, yog li nws yog siv nyob rau hauv ntau cov ntaub so ntswg kho cov ntaub ntawv thiab cov khoom siv dag zog, xws li cov hlab ntsha, lub plawv kho daim nyias nyias, thiab lwm yam. Tsis tas li ntawd, qhov zoo tshaj plaws ntawm PTFE yog nws muaj peev xwm. yuav sterilized los ntawm txhua txoj kev, thiab nws yuav tsis raug denatured los ntawm high-pressure cua sov los yog kev kho mob nrog ntau yam tshuaj tua kab mob. Yog li ntawd, nws yog siv dav hauv cov khoom siv kho mob xws li sutures, tshuaj tua kab mob, thiab koob txhaj tshuaj.
