Guryaha garaafyada garaafyada

Guryaha garaafyada garaafyada

1. Degganaanshiyo kiimiko oo wanaagsan
Graphite waa walxo kiimiko ahaan deggan, xasiloonideeda kiimikaduna kama hoosayso tan biraha qaaliga ah. Ku milmitaankeeda lacagta dhalada ah waa 0.001% - 0.002% kaliya.Garaafkawaa mid aan lagu milmi karin dareerayaasha organic ama kuwa aan noolaha ahayn. Kuma daxaleeyo oo ku milmaan inta badan asiidhyada, saldhigyada iyo cusbada.
2. Iska caabbinta heerkulka sare ee garaafyada
Tijaabooyin, heerkulka adeegga ee xajinta darajada kaarboonka guud wuxuu gaari karaa 350 ℃; Garaafyada birta sidoo kale waa 350 ℃; Heerkulka garaafiga elektiroonigga ah wuxuu gaari karaa 450-500 ℃ (culays fudud hoostiisa), astaamihiisa jireed iyo makaanikada ayaa ah kuwo aan isbeddelin, iyo heerkulka adeeggu wuxuu gaari karaa 1000 ℃ hoostiisa faakuum ama jawi ilaalin.
3. Waxqabadka wanaagsan ee is-saliimaynta ah
Qaadashada garaafkawuxuu leeyahay waxqabad is-saliid oo wanaagsan laba sababood dartood. Mid ka mid ah sababaha ayaa ah in atamka kaarboonka ee shabagga garaafka lagu habeeyay diyaarad kasta qaab laba geesood ah oo joogto ah. Masaafada u dhaxaysa atamka waa 0.142 nm, halka inta u dhaxaysa diyaaraduhuna ay tahay 0.335 nm, waxaana ay isku jiho u socdaan. Diyaaradda saddexaad waxay ku celisaa booska diyaaradda koowaad, diyaaradda afraad waxay ku celisaa booska diyaaradda labaad, iyo wixii la mid ah. Diyaarad kasta, awoodda isku xidhka u dhaxaysa atamka kaarboonku waa mid aad u xoog badan, halka masaafada u dhaxaysa diyaaraduhu ay tahay mid weyn, awoodda Van der Waals ee u dhaxaysaa waa mid aad u daciif ah, sidaas awgeed way fududahay in la baxo oo la dhex dhigo lakabyada, taas oo ah sababta asaasiga ah. sababta alaabta graphite ay u leeyihiin sifooyin is-saliid ah.
Sababta labaad ayaa ah in walxaha graphite ay leeyihiin adhesion xoog leh oo leh qalabka birta badankooda, sidaa darteed graphite exfoliated wuxuu si fudud ugu dhejin karaa dusha birta marka la shiidi karo birta, samaynta lakabkafilimka graphite, kaas oo noqda khilaafka u dhexeeya graphite iyo graphite, sidaas darteed si weyn u yareynaya xirashada iyo isku-xirnaanta isku-dhafka, Tani sidoo kale waa mid ka mid ah sababaha keena garaafyada kaarboonka ay leeyihiin waxqabadka is-saliimaynta iyo waxqabadka lidka ku ah.
4. sifooyinka kale ee garaafyada
Marka la barbardhigo kuwa kale,garaafyada garaafyadasidoo kale waxay leeyihiin conductivity kulaylka sare, coefficient hoose ee ballaarinta toosan, qaboojin degdeg ah iyo caabbinta kulaylka iyo wixii la mid ah.