Kev ua haujlwm siab ntawm cov khoom siv fiber ntau ua rau nws muaj kev ua haujlwm siab heev hauv ntau qhov kev lag luam.Thaum lubcarbon fiber ntaucov khoom siv, nws pom tau tias tus nqi tag nrho yog siab.Qhov chaw uas tus nqi ntawm cov khoom tawg fiber ntau yog siab muaj ib yam dab tsi ua rau ntau qhov chaw.Peb pab neeg yuav qhia koj los ntawm kev xav ntawm carbon fiber.
Cov khoom siv carbon fiber uas peb pom yog qhov sib txawv ntawm peb cov ntaub ntawv carbon fiber ntau, vim tias fibers tsis tuaj yeem tsim ib leeg, thiab yuav tsum tau ua ke nrog cov khoom siv cob kom ua tiav cov khoom lag luam.Ib qho ntawm cov laj thawj vim li cas tus nqi ntawm cov khoom siv fiber ntau kuj tseem kim yog tias tus nqi ntawm cov pa roj carbon filaments yog qhov siab, yog li peb yuav tsum xub nkag siab txog cov khoom siv carbon fiber ntau.
Muaj peb hom kev tawg fiber ntau, suav nrog polyacrylonitrile (PAN)-raws li carbon fiber, pitch-based carbon fiber thiab cov pos hniav-raws li carbon fiber.PAN-raws li carbon fiber ntau tshaj plaws yog qhov ua tau zoo tshaj plaws, thiab tag nrho kev lag luam feem ntau tshaj 90%, yog li tam sim no thermoplastic carbon fiber feem ntau yog hais txog PAN-based carbon fiber.
Polyacrylonitrile kuj tau tsim thaum pib.Nws tau tsim los ntawm Akio Kondo hauv Nyij Pooj xyoo 1959, thiab tom qab ntawd tsim cov khoom loj hauv Toray hauv xyoo 1970. Tag nrho cov polyacrylonitrile carbon filament muaj zog heev thiab cov yam ntxwv ntawm lub hnub qub qauv.Cov asphalt-raws li fiber ntau tau tsim los ntawm Gunma University hauv Nyij Pooj xyoo 1965. Cov pa roj carbon fiber ntau no muaj cov thermal conductivity siab li 90OGPa, yog li nws feem ntau siv rau cov khoom siv tshwj xeeb.Viscose-raws li carbon fiber yog tsuas yog siv los ua cov khoom sib xyaw ua ke rau cov khoom siv hluav taws xob hauv tshav dav hlau hauv xyoo 1950, thiab nws kuj yog cov khoom siv uas yuav siv tam sim no.Yog li peb pom tias thawj ob yog tsim los ntawm Nyij Pooj, uas yog vim li cas cov qauv ntsuas kev ua haujlwm ntawm cov pa roj carbon fiber ntau yog raws li Toray carbon fiber cov khoom.
Tau kawg, kev tshawb fawb thiab kev txhim kho ntawm cov pa roj carbon fiber ntau cov khoom ua ntej tau txuas ntxiv mus rau xyoo tas los no, tab sis tag nrho cov txiaj ntsig tseem tsis tau muaj txiaj ntsig.Niaj hnub no, PAN-based tseem yog lub hauv paus tseem ceeb.Hauv kev tsim cov pa roj carbon filaments, cov pa roj carbon yield ntawm peb lub precursors tuaj yeem ncav cuag ntau dua B80%.Raws li txoj cai, tus nqi ntawm cov pa roj carbon fiber ntau filaments yuav twv yuav raug qis dua, tab sis kev tsim cov suab-raws li yuav tsum tau ua kom zoo dua qub thiab hloov kho.Cov txheej txheem no yuav ua rau cov nqi ntau lawm thiab txo cov txiaj ntsig mus rau 30%.Yog li cov PAN-raws li cov uas tseem nrov dua.
Yog li cia peb saib ntawm qhov dav siv PAN carbon fiber ntau.Tus nqi ntawm PAN-based carbon fiber ntau qis dua li ntawm asphalt-based carbon fiber ntau, thiab nws tuaj yeem siv rau ntau qhov chaw.Tus nqi ntawm PAN-raws li fiber ntau rau satellites yog siab li 200 yen / kg, thaum tus nqi ntawm carbon fiber rau tsheb yog tsawg li 2,000 yen / kg.
Tom qab ntawd peb tseem siv Toray cov khoom siv carbon fiber ua lub hauv paus.Ntawm no, PAN-raws li tawg fibers tau muab faib ua cov cab loj thiab me.Piv txwv li, tus nqi ntawm 3K yog 50-70 US las / kg, thiab tus nqi ntawm 6K yog 4-50 US las / kg.Yog li ntawd, peb tuaj yeem nkag siab tias yog vim li cas cov cab me me tau siv ntau dua hauv kev ua haujlwm siab.
Yog li ntawd, peb hais tias tus nqi ntawm carbon fiber yuav kim dua.Nws tsis yog tsis muaj laj thawj uas nws muaj ntau yam ua rau cov khoom siv raw.Tsis tas li ntawd, tus nqi ntawm cov khoom siv carbon fiber ntau yog qhov siab, thiab nws muaj ntau yam ua rau peb cov khoom siv carbon fiber ntau yuav tsum tau ua haujlwm ntau thiab khoom siv.
Post lub sij hawm: Lub Xya hli ntuj-25-2023