Polytetrafluoroethylene (PTFE) fiber ntau yog linear polymer thiab ib tug zoo sawv cev ntawm perfluoropolymer. Cov fluorine atoms ntawm cov saw tseem ceeb ntawm PTFE yog npaj nyob rau hauv ob chav helix qauv nyob ib ncig ntawm cov pa roj carbon atoms, thiab ob lub fluorine atoms uas nyob ib sab cia li sau qhov sib txawv ntawm ob carbon atoms, tsim ib tug tuab txheej ntawm "fluorinated" nyob ib ncig ntawm lub CC daim ntawv cog lus. Txheej", nws yog ib qho nyuaj rau lwm cov molecules los yog reactive pawg nkag mus, zoo tiv thaiv C-C lub ntsiab saw ntawm yaig.
Txij li thaum txoj kev loj hlob ntawm PTFE, vim nws cov khoom zoo xws li thermal stability, tshuaj tiv thaiv corrosion, tsis tshua muaj kev sib txhuam coefficient, thiab tsis tshua muaj dej nqus vim nws qhov tshwj xeeb molecular configuration, nws tau txais kev saib xyuas nyob rau hauv ntau yam kev lag luam thiab lub neej. Thiab daim ntawv thov, cia peb saib ntawm kev siv PTFE fibers hauv ntau yam ntawm no.
Daim ntawv thov hauv cov ntaub ntawv lim:
PTFE fiber ntau muaj daim ntawv thov tseem ceeb hauv cov ntaub lim dej, thiab nws cov kev ua tau zoo tshaj plaws rau lwm cov ntaub ntawv fiber ntau. Tam sim no kev siv tseem ceeb ntawm PTFE fiber ntau yog los ua cov ntaub ntawv lim rau qhov kub thiab txias thiab corrosion kuj flue gas plua plav tshem tawm. PTFE luv fibers tuaj yeem siv los ua rab koob rau kev pom, thiab cov fibers ntev tuaj yeem siv los ua cov ntaub npuag scrims rau rab koob. Vim tias nws lub neej ua haujlwm ntev, nws tuaj yeem siv tsis tau tsuas yog rau lub hauv paus ntaub ntawm PTFE xav, tab sis kuj rau lwm hom ntaub ua los ntawm kev ua tau zoo Felt puag ntaub ua los ntawm fibers. PTFE xaws xov yuav siv tau nyob rau hauv ntau hom lim manufacturing. Raws li cov khoom siv lim, PTFE fiber ntau tuaj yeem spun purely lossis tov nrog lwm cov fibers. Cov khoom no tsuas yog siv rau hauv cov khib nyiab khib nyiab (khoom khib nyiab), cov cement, thee-hluav taws xob boilers nyob rau hauv lub hwj chim chaw nres tsheb, iav, non-ferrous smelting, chemical ntau lawm tail gas thiab plua plav tshem tawm flue gas, thiab lwm yam. PTFE fiber lim ntaub tau kuj tseem siv tau los ua cov khoom siv lim dej kub thiab dej corrosive, thiab lwm yam.
Kev siv hauv kev kho mob:
Txij li thaum cov khoom siv PTFE nthuav dav yog qhov tsis muaj zog, tsis muaj tshuaj lom nws tus kheej, muaj zog lom neeg yoog raws, yuav tsis ua rau lub cev tsis zoo, tsis muaj kev phiv ntawm tib neeg lub cev, tuaj yeem ua kom tsis muaj menyuam los ntawm txhua txoj kev, thiab muaj cov qauv microporous. , yog li nws tuaj yeem siv rau hauv ntau yam kev kho mob, xws li cov hlab ntsha thiab thaj ua rau thaj ua rau cov nqaij mos rov tsim dua tshiab, phais kev phais rau cov hlab ntsha, lub plawv thiab daim siab, kev phais dav dav thiab phais yas, nws cov khoom zoo heev antimicrobial, antibacterial zog, Lub neej ntev flex thiab xoom ya raws rov qab, thiab lwm yam. Qhov zoo ua rau tib neeg txuas ntxiv txhim kho daim ntawv thov ntawm PTFE fiber ntau hauv daim teb no. PTFE fibers muaj lub zog siab thiab tuaj yeem ua rau hauv cov hniav txhuam hniav, uas tuaj yeem xaub dawb ntawm cov hniav yam tsis muaj kev tawg. Qhov kev kho mob zoo ntawm cov tshuaj txhuam hniav no tau lees paub los ntawm American Dental Organization thiab British Dental Organization. PTFE fiber ntau tuaj yeem siv los ua cov khoom tseem ceeb los tsim lossis hloov lub plawv valve. Thaum lub sijhawm ua haujlwm, PTFE fiber ntau knitted npuag nplhaib yog nyob ib ncig ntawm lub plawv valve. Cov fiber ntau muaj cov kua nplaum zoo heev thiab ua lub luag haujlwm ntawm kev tsim lossis hloov lub plawv valve.
Kev siv hauv aerospace:
Spacesuits yog cov khaub ncaws tiv thaiv uas xav tau tshaj plaws niaj hnub no, thiab lawv lub luag haujlwm tseem ceeb yog los tiv thaiv cov neeg nyob hauv tshav kub, txias, tshuaj lom neeg, micrometeoroids, siab tsis muaj zog thiab lwm yam kev phom sij. Qhov chaw suits feem ntau yog tsim los ntawm cov ris tsho hauv qab, txheej txheej cua, txheej txheej thermal rwb thaiv tsev, airtight txwv txheej, dej txias khaub ncaws, rwb thaiv tsev kub thiab txheej tearproof. Ntawm lawv, cov qauv ntawm airtight confining txheej yog muab faib ua ob txheej: airtight thiab confining, uas yog ua ke los ntawm cov txheej txheem kev sib txuas hauv zos. Lub airtight txheej yog ua los ntawm nylon puag daim ntaub coated nrog polyurethane los yog neoprene, uas muaj qhov zoo ntawm lub siab tsis kam, zoo huab cua nruj, kev laus tsis kam, thiab lub teeb yuag. Cov txheej txheem txwv yog ua los ntawm polyamide fiber, polytetrafluoroethylene fiber lossis aramid fiber. Cov khoom tseem ceeb ntawm cov txheej txheem tsim kua muag yog hluavtaws fiber ntau, xws li aramid fiber, PTFE fiber ntau ntaub. NASA's spacesuit tsim kua muag-resistant txheej yog ib daim ntaub ua los ntawm Nomex thiab PTFE fibers interwoven nrog Kevlar raws li ib tug tiv thaiv xov paj. Cov khoom siv tiv thaiv hnav-tiv taus ua los ntawm PTFE fiber ntau yog cov khoom siv rau kev ua dav hlau thiab lwm yam dav hlau. Lub bushing yog ib qho tseem ceeb ntawm lub dav hlau tsaws iav, thiab kev ua tau zoo ntawm PTFE fiber npuag bushing tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub dav hlau tsaws iav. PTFE fibers kuj tseem siv tau los ua cov ntaub thaiv npog rau foob pob hluav taws tso pawm, thiab lwm yam.
Kev siv hauv kev tsim kho:
Lub 100 feem pua puag ntaub woven los ntawm PTFE fibers yuav siv tau los tsim architectural films los ntawm compounding PTFE films rau nws nto. Cov khoom siv hauv tsev no muaj lub teeb pom kev zoo thiab kev tu tus kheej, uas tuaj yeem txo cov teeb pom kev zoo thiab cov cua txias, thiab muaj kev ua haujlwm ntev tshaj 20 xyoo. Nws tuaj yeem txo tus nqi ntawm kev pleev xim thiab tu, txo lub sijhawm tsim kho ntawm lub ru tsev loj ntawm 50 feem pua, thiab txo tus nqi ntawm cov ntaub ntawv ru tsev los ntawm 50 feem pua thiab tag nrho cov nqi tsim kho los ntawm 20 feem pua. Nws muaj qhov zoo ntawm lub teeb yuag, av qeeg tsis kam, tsis-combustibility, thiab qib siab ntawm kev ywj pheej tsim. Yog li ntawd, nws tuaj yeem siv los ua cov ntaub ntawv vov tsev rau cov tsev hais plaub sab nraum zoov, arenas, chaw ntau pob, pas dej da dej, kev nthuav qhia loj, thiab lwm yam.
Daim ntawv thov nyob rau hauv chemical thiab mechanical industries:
Lub zog sib txhuam coefficient ntawm PTFE fiber yog me me, thiab nws tau ua tiav rau hauv ntim nrog hnav tsis kam, uas tuaj yeem siv ncaj qha rau kev sib hloov ntawm cov li qub, cov twj tso kua mis centrifugal, mixers thiab agitators (propellers, thiab lwm yam). Cov kua qaub thiab alkali tsis kam, hnav tsis kam thiab tsis-combustibility ntawm PTFE fiber tuaj yeem ua rau nws siv los tiv thaiv khaub ncaws hauv kev lag luam tshuaj. Lub hauv paus ntaub ua los ntawm PTFE ntev fibers thiab ion exchange membrane compounded nrog sulfonic acid resin yog qhov tseem ceeb ntawm cov khoom tseem ceeb rau chlor-alkali engineering. Ion txauv fibers ua los ntawm PTFE grafted nrog acrylic acid, sodium styrene sulfonate, thiab lwm yam, yuav siv tau rau hnyav hlau rov qab, catalyst carrier, thiab lwm yam.
