Cov khoom siv fiber ntau dua yog vim lawv cov kev siv hauv aerospace, tsheb, tsheb thauj mus los thiab cov khoom siv kis las. Nws lub siab tshaj plaws muaj zog tau coj kev cia siab tshiab rau kev txhim kho hauv ntau qhov kev lag luam. Carbon fiber muaj peev xwm tuaj yeem faib rau hauv cov roj av-raws li hom thiab hom bio raws. Nyob rau tam sim no, roj av-raws li cov roj carbon fiber muaj cov peev xwm zoo dua thiab ntau dua cov khoom lag luam muaj fiber ntau dua li cov roj carbon fiber ntau dua, tab sis tom kawg tseem muaj peev xwm tseem ceeb.
Cov roj av-based carbon fiber dominates lub khw
Roj av-raws cov roj carbon fiber ntau cov khoom lag luam yog tam sim no cov thawj coj ua lag luam. Cov no suav nrog polyacrylonitrile (lauj kaub) - raws li, suab - raws li thiab viscose - raws li cov roj carbon fiber. Pan-based carbon fibers account rau ntau dua 90% ntawm tag nrho cov roj carbon fiber ntau, pitch-based fibers suav rau kwv yees li 7%, thiab viscose-based fibers rau kwv yees li 1%. Qhov sib txawv no feem ntau yog vim muaj qhov sib txawv ntawm kev ua tau zoo thiab kev ua nyuaj. PAN-based carbon fiber yog cov khoom lag luam nyob hauv kev ua lag luam thiab cov pob zeb ntawm cov roj av-raws li cov roj carbon fiber txoj haujlwm.
Carbon fiber yog ib qho zoo nkauj cov ntaub ntawv zoo nkauj ua los ntawm yuav luag cov pa roj carbon muaj muaju lub cheeb ntawm 5 - 10 Micrometers. Nws muaj tsib zaug ntawm cov neeg kho tshuab zog thiab ob zaug lub hardness ntawm cov hlau. Cov khoom siv roj carbon fiber yog los ntawm cov khoom siv cog qoob xws li cellulose thiab rayon, tab sis tom qab cov khoom siv roj av vim yog lawv tus nqi qis thiab ua tau zoo dua.
Txhawm rau ua kom muaj fiber cabro fiber, roj av yog thawj zaug ua rau lub lauj kaub muaj kuab heev. Nws yog kos rau hauv cov filaments zoo thiab tom qab ntawd rhuab hauv oxygen-rauve rauv. Txawm li cas los xij, cov txheej txheem no ntau lawm siv lub zog thiab ua kom ntau cov pa roj thiab co toxins. Tsis zoo li yav dhau los thaum tus nqi sib txhawj xeeb, muaj kev txhawj xeeb tam sim no yog tam sim no ntau qhov tseem ceeb thiab roj av yog tsis muaj pheej yig.
Vim li cas thiaj tsim cov roj ntsha bio-bearbon fiber?
Piv rau cov pan-based fibers, bio-based carbon fiber muaj mid- txog qis kawg-ua haujlwm. Yog li vim li cas thiaj li tsim nws? Qhov no yuav tsum nkag siab txog cov kev tsis txaus siab ntawm roj av - raws li cov roj carbon fiber.
Roj av-based carbon fiber ntau lawm yog lub zog ua kom muaj zog, tsim cov yeeb yam phom sij, thiab tsim kev puas tsuaj ib puag ncig. Ib qho ntxiv, cov roj carbon fiber ntau yog qhov nyuaj rau kev rov ua dua, ua rau cov nqi ntau lawm thiab ua cov teeb meem kev nyuaj. Txhawm rau txo cov nqi ntau lawm thiab vam khom rau cov ntaub ntawv raw, kev tshawb fawb txog cov roj carbon fiber ntau precursor yog tau txais xim. Piv txwv li, lub tsev teev ntuj, glycerin thiab lignocellulosic cov suab thaj raug qhia raws li lwm cov ntaub ntawv raw.
Kev tiv thaiv ib puag ncig yog qhov kev nias thoob ntiaj teb thiab kev pom zoo ntawm txhua lub tebchaws. Txawm hais tias cov khoom siv file fiber ntau tau pom meej zoo, lawv tsis yog tus phooj ywg ib puag ncig. Yog li, cov kws tshawb fawb tab tom nrhiav cov kev daws teeb meem, thiab "carbon nawv carbon Neutrality" tau dhau los ua kev tsav tsheb rau kev txhim kho cov pa roj carbon fiber ntau. Roj roj-based carbon fiber tsis tuaj yeem hloov cov roj cario-raws li cov pa roj cario roj carbon monox, thiab yav tom ntej, ob hom yuav tsim nyob rau hauv parallel. Qhov tseem ceeb yog qhov kev taw qhia uas yuav pom cov kev sib luag ntau dua thiab ua tiav.
