Graphite hmoov yog ib hom pob zeb hauv avhmoovnrog cov ntsiab lus tseem ceeb. Nws lub ntsiab tivthaiv yog cov pa roj carbon yooj yim, uas yog mos, tsaus grey thiab greasy. Nws hardness yog 1 ~ 2, thiab nws nce mus rau 3 ~ 5 nrog rau qhov nce ntawm impurity cov ntsiab lus nyob rau hauv ntsug kev taw qhia, thiab nws tshwj xeeb lub ntiajteb txawj nqus yog 1.9 ~ 2.3 Nyob rau hauv cov xwm txheej ntawm cais huab cua thiab oxygen, nws melting point yog siab tshaj 3000 ℃, uas yog ib qho ntawm cov khoom siv hluav taws xob kub-resistant.
Nyob rau hauv chav tsev kub, analytical txoj kev ntawm chemical paub, qauv thiab cov khoom ntawmgraphite hmoovNws yog qhov systematic thiab ruaj khov, thiab nws yog insoluble hauv dej, dilute acid, dilute alkali thiab organic hnyav. Kev tshawb fawb ua haujlwm ntawm cov ntaub ntawv tshawb fawb muaj qee yam kev nyab xeeb kev ua haujlwm ntawm high-temperature resistant composite conductive network, uas tuaj yeem siv los ua cov ntaub ntawv tseem ceeb rau kev tsim hluav taws kub, cov khoom siv ua haujlwm thiab cov khoom siv roj-resistant lubrication.
Ntawm qhov kub siab sib txawv, nws reacts nrog oxygen los tsimcarbondioxide los yog carbon monoxide. Ntawm cov pa roj carbon, tsuas yog fluorine tuaj yeem cuam tshuam ncaj qha nrog cov pa roj carbon monoxide. Thaum rhuab, graphite hmoov yog yooj yim oxidized los ntawm acid. Thaum kub siab, graphite hmoov tuaj yeem hnov mob nrog ntau cov hlau los tsim cov hlau carbides, thiab cov hlau tuaj yeem smelted ntawm qhov kub thiab txias.
Graphite hmoov yog cov khoom siv tshuaj rhiab heev, thiab nws qhov kev tiv thaiv yuav hloov pauv raws li qhov sib txawv.Graphite hmoovyog ib yam khoom zoo heev uas tsis yog xim hlau conductive. Ntev npaum li cov hmoov graphite khaws cia rau hauv cov ntaub ntawv insulating, nws yuav raug them zoo li cov hlau nyias, tab sis tus nqi kuj tsis yog tus lej raug. Vim tias cov tuab ntawm graphite hmoov sib txawv, qhov kev tiv thaiv tus nqi ntawm graphite hmoov kuj tseem sib txawv nrog qhov sib txawv ntawm cov ntaub ntawv thiab ib puag ncig.
Post lub sij hawm: Apr-28-2023