Noj polyacrylonitrile raws li cov pa roj carbon zoo li piv txwv, thaj tsam qhov hnyav yog 500g / m2 thiab 1000g / m2, qhov ntev thiab lub zog transverse (N / mm2) yog 0.12, 0.16, 0.10, 0.12, tawg elongation yog 3%, 4%, 18%, 16%, thiab resistivity (Ω·mm) yog 4-6, 3.5-5.5 thiab 7-9, 6-8, feem. Thermal conductivity yog 0.06W / (m·K) (25℃), thaj chaw tshwj xeeb yog> 1.5m2 / g, cov hmoov tshauv tsawg dua 0.3%, thiab cov ntsiab lus sulfur tsawg dua 0.03%.
Activated carbon fiber (ACF) yog ib yam tshiab ntawm kev ua haujlwm siab adsorption khoom tshaj activated carbon (GAC), thiab nws yog ib tug tshiab tiam khoom. Nws muaj cov qauv tsim microporous heev, muaj peev xwm adsorption loj, ceev desorption ceev, zoo purification nyhuv, nws tuaj yeem ua tiav rau ntau yam kev xav, txhob lo lo ntxhuav, ntaub. Cov khoom muaj cov yam ntxwv ntawm tshav kub, acid thiab alkali tsis kam.
Txheej txheem yam ntxwv:
Lub peev xwm adsorption ntawm COD, BOD thiab roj hauv aqueous tov yog ntau dua li ntawm GAC. Lub adsorption tsis kam yog me me, qhov ceev yog ceev, lub desorption yog ceev thiab meej.
kev npaj:
Cov txheej txheem ntau lawm yog: (1) carbon filament cua ntws mus rau hauv lub vas tom qab needling; (2) Carbonization ntawm pre-oxygenated txhob lo lo ntxhuav; (3) Preoxidation thiab carbonization ntawm polyacrylonitrile fiber ntau. Siv los ua cov ntaub ntawv rwb thaiv tsev rau lub tshuab nqus tsev vacuum thiab inert gas furnaces, roj kub los yog kua thiab molten hlau lim, ntxeem tau roj cell electrodes, catalyst carriers, composite linings rau corrosion resistant hlab ntsha thiab puas cov ntaub ntawv.
Post lub sij hawm: Nov-15-2023