Piv txwv li, siv polyacrylonitrile raws li carbon xav, qhov hnyav ntawm thaj tsam yog 500g / m2 thiab 1000g / m2, lub zog ntev thiab transverse (N / mm2) yog 0.12, 0.16, 0.10, 0.12, qhov tawg elongation yog 3%, 4%, 18%, 16%, thiab qhov resistivity (Ω·mm) yog 4-6, 3.5-5.5 thiab 7-9, 6-8, raws li. Lub thermal conductivity yog 0.06W / (m·K)(25℃), thaj chaw tshwj xeeb yog > 1.5m2/g, cov tshauv tsawg dua 0.3%, thiab cov sulfur tsawg dua 0.03%.
Cov roj carbon fiber (ACF) yog ib hom khoom siv adsorption tshiab uas muaj txiaj ntsig zoo dua li cov roj carbon activated (GAC), thiab nws yog cov khoom tshiab. Nws muaj cov qauv microporous uas tsim tau zoo heev, muaj peev xwm adsorption loj, ceev desorption, thiab ua kom huv zoo, nws tuaj yeem ua tiav rau ntau yam kev qhia ntawm cov ntaub, ntaub txhob lo lo ntxhuav, thiab ntaub. Cov khoom no muaj cov yam ntxwv ntawm kev tiv taus kub, kua qaub thiab alkali.
Cov yam ntxwv ntawm cov txheej txheem:
Lub peev xwm adsorption ntawm COD, BOD thiab roj hauv cov kua dej yog siab dua li ntawm GAC. Qhov tsis kam adsorption yog me me, qhov ceev yog ceev, qhov kev tshem tawm yog sai thiab tiav.
kev npaj:
Cov txheej txheem tsim khoom yog: (1) cov pa roj carbon filament ntws mus rau hauv lub vas tom qab koob; (2) Carbonization ntawm cov ntaub txhob lo lo ntxhuav ua ntej oxygenated; (3) Preoxidation thiab carbonization ntawm polyacrylonitrile fiber xav. Siv ua cov ntaub ntawv rwb thaiv tsev rau cov cub tawg thiab cov cub tawg roj inert, cov roj kub lossis kua thiab cov lim hlau molten, cov roj hluav taws xob porous, cov catalyst carriers, cov ntaub sib xyaw rau cov hlab ntsha tiv taus corrosion thiab cov ntaub ntawv sib xyaw.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-15-2023