Graphite ntawv yog daim ntawv tshwj xeeb ua los ntawm graphite li cov khoom siv raw. Thaum graphite tsuas yog khawb hauv av, nws yog xws li teev, thiab nws yog mos thiab hu ua ntuj graphite. Cov graphite no yuav tsum tau ua thiab ua kom zoo kom muaj txiaj ntsig zoo. Ua ntej, soak lub ntuj graphite nyob rau hauv kev sib xyaw ntawm concentrated sulfuric acid thiab coj nws mus rau hauv dej, thiab tom qab ntawd muab tso rau hauv lub tshuab taws kub kom hlawv. Cov hauv qab no ua plaub ntsuab Editor qhia txog qhov yuav tsum tau ua ntej rau cov ntawv tsim khoom Graphite:
Vim hais tias cov kab ke ntawm cov duab ntxoov ntxoo evaporate sai sai tom qab ua kom sov, thiab tib lub sijhawm, yog li ib hom ntawm "nthuav qhia graphite". Muaj ntau cov kab noj hniav (sab laug dhau tom qab cov inlays raug tshem tawm) hauv kev nthuav dav, uas yog 0.01-0.059 / cm3, lub teeb nyob rau hauv qhov hnyav thiab zoo heev hauv kev tshav kub. Vim tias muaj ntau lub qhov, ntau qhov sib txawv, thiab tsis sib xws, lawv tuaj yeem hla dhau ib leeg thaum lub zog sab nraud yog siv. Qhov no yog tus kheej-nplaum ntawm kev nthuav qhia graphite. Raws li tus kheej-adhesion ntawm nthuav graphite, nws tuaj yeem ua tiav rau hauv graphite ntawv.
Yog li ntawd, qhov yuavtsum tau kawm uantej rau cov ntaub ntawv graphite yog kom muaj kev npaj tiav cov khoom siv, kev tu, thiab lwm yam. Nws yog ib qho tseem ceeb tshwj xeeb; Qhov thib ob yog lub papermaking thiab nias cov menyuam lub tshuab. Cov kab tawm ntawm cov menyuam nias yuav tsum tsis yog nws yuav cuam tshuam rau cov ntawv thiab lub zog ntawm cov kab ntawv, thiab yog tias cov kab ntawm kab, nws yog qhov tseem ceeb tshaj plaws, nws yog qhov tsis tsim nyog. Yog li ntawd, cov txheej txheem tsim cov txheej txheem yuav tsum yog qhov tseeb, thiab cov ntawv graphite yog ntshai ntawm cov dej noo, thiab cov ntawv tiav yuav tsum ntim rau hauv cov dej noo-ntawv pov thawj ntim thiab khaws cia kom zoo.
Lub sijhawm Post: Sep-23-2022