Carbon fiber ntautau raug rho tawm haujlwm ntawm qhov kub thiab txias raws li cov khoom siv ntxiv hauv xyoo 1950 thiab siv los tsim cov khoom siv foob pob hluav taws.Thawj cov fibers yog tsim los ntawm cua sov kom txog thaum lawv tsim rayon.Cov txheej txheem tsis muaj txiaj ntsig, thiab cov txiaj ntsig fibers muaj cov pa roj carbon tsuas yog kwv yees li 20 feem pua tsis muaj zog thiab nruj zog.Thaum ntxov xyoo 1960, kev txhim kho thiab kev siv ntawm polyacrylonitrile li raw khoom ua carbon fiber muaj 55% carbon thiab muaj kev ua tau zoo dua.Txoj hauv kev yooj yim rau kev hloov pauv ntawm polyacrylonitrile sai sai tau los ua txoj hauv kev rau kev tsim cov pa roj carbon fiber ntau.
Hauv xyoo 1970, qee cov neeg tau sim ua kom zoo dua thiab ua cov pa roj carbon fiber ntau los ntawm cov roj av.Cov fibers no muaj txog 85% carbon thiab muaj zog flexural zoo heev.Hmoov tsis, lawv muaj kev txwv compressive zog thiab tsis tau txais dav.
Cov pa roj carbon fiber ntau yog ib feem tseem ceeb ntawm ntau cov khoom, thiab daim ntawv thov ntawm cov roj carbon fiber ntau yog tsim los ntawm ib xyoos ib zaug.
Graphite fiber yog hais txog ib hom ultra-high modulus fiber ntau ua nrog roj av pitch li raw khoom.Cov fibers no muaj cov yam ntxwv ntawm peb-dimensional siv lead ua kev npaj ntawm cov qauv sab hauv thiab yog ib daim ntawv ntshiab ntawm carbon hu ua graphite.
raw khoom
Cov khoom siv raw siv los tsimcarbon fiber ntauyog hu ua precursor, thiab li ntawm 90% ntawm carbon fiber ntau lawm raw khoom yog polyacrylonitrile.Qhov seem 10% yog ua los ntawm rayon thiab petroleum pitch.
Tag nrho cov ntaub ntawv no yog cov organic polymers, tus cwj pwm los ntawm cov molecules khi ua ke los ntawm cov hlua ntev ntawm carbon atoms.
Hauv cov txheej txheem tsim khoom, ntau cov roj thiab cov kua dej yog siv, qee yam ntawm cov ntaub ntawv no tau tsim los ua kom muaj cov fibers kom ua tiav cov teebmeem tshwj xeeb, lwm cov ntaub ntawv tsim los, lossis tsis hnov mob los tiv thaiv qee yam kev cuam tshuam nrog fibers.Qhov tseeb muaj pes tsawg leeg ntawm ntau cov ntaub ntawv hauv cov txheej txheem no kuj suav tias yog kev lag luam zais cia.
kev tsim khoom
Nyob rau hauv cov tshuaj thiab mechanical ib feem ntawm lubcarbon fiber ntauCov txheej txheem tsim khoom, cov txheej txheem ua ntej lossis cov fibers tau kos rau hauv qhov cub thiab tom qab ntawd rhaub kom kub siab heev thaum tsis muaj oxygen.Yog tsis muaj oxygen, cov fibers tsis tuaj yeem hlawv.Hloov chaw, qhov kub siab ua rau cov atoms fiber ntau vibrate mus txog thaum kawg uas tsis yog carbon atoms raug tshem tawm.Cov txheej txheem no, hu ua carbonization, muaj cov kab ntev ntev ntawm cov fibers uas txuas nrog nruj nreem, tawm tsuas yog ob peb yam tsis yog carbon atoms.Qhov no yog ib feem ntawm kev ua haujlwm rau kev tsim cov carbon fibers siv polyacrylonitrile.
1. Cov pa roj carbon fiber ntau yog cov khoom siv hluav taws xob, thiab nws yuav tsum tau khaws cia kom deb ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob thiab kev tiv thaiv kev ruaj ntseg yuav tsum tau ua thaum muab tso rau thiab kev tsim kho.
2. Kev khoov ntawm cov ntaub ntawv carbon yuav tsum zam thaum khaws cia, kev thauj mus los thiab kev tsim kho.
3. Cov ntaub ntawv txhawb nqa ntawm cov pa roj carbon fiber ntau yuav tsum tau muab kaw thiab khaws cia kom deb ntawm qhov chaw hluav taws kub, ncaj qha tshav ntuj thiab qhov chaw uas muaj qhov kub thiab txias.
4. Qhov chaw uas cov resin npaj thiab siv yuav tsum tau khaws cia kom muaj cua zoo.
5. Cov neeg ua haujlwm ua haujlwm ntawm qhov chaw yuav tsum ua raws li kev tiv thaiv zoo.
Post lub sij hawm: Nov-21-2022