I-graphite enwebekayo ikhiqizwa izinqubo ezimbili: amakhemikhali kanye ne-electrochemical. Izinqubo ezimbili zihlukile ngaphezu kwenqubo ye-oxidation, ukukhishwa kwegazi, ukuwasha amanzi, ukomisa amanzi, ukomisa nezinye izinqubo ziyefana. Ikhwalithi yemikhiqizo yenqwaba yabakhiqizi abasebenzisa indlela yamakhemikhali ingafinyelela enkombeni ebekiwe ku-GB10688-89 ejwayelekile ye- "expandable graphite", futhi ihlangabezane nezidingo ezibonakalayo zokukhiqizwa kwamashidi amaningi we-graphite sheet namazinga wokuphakela okuthekelisa.
Kepha ukukhiqizwa kwezidingo ezikhethekile zokuguquguquka okuphansi (≤10%), okuqukethwe kwesibabule okuphansi (≤2%) kwemikhiqizo kunzima, inqubo yokukhiqiza ayidluli. Ukuqinisa ukuphathwa kwezobuchwepheshe, ukutadisha inqubo yokuhlukaniswa ngokucophelela, ukuqonda ubudlelwano phakathi kwemingcele yenqubo nokusebenza komkhiqizo, nokukhiqiza izinga elizinzile le-graphite enwetshiwe yizikhiye zokuthuthukisa ikhwalithi yemikhiqizo elandelayo. I-Qingdao Furuite Graphite isifinyezo: indlela ye-electrochemical ngaphandle kwamanye ama-oxidants, i-flake graphite yemvelo ne-anode asizayo ndawonye zenza ikamelo le-anode eligxishwe ku-sulfuric acid electrolyte, ngokusebenzisa i-oxidation yamanje noma ye-pulse yamanje, i-oxidation ngemuva kwesikhathi esithile ukuyikhipha, ngemuva kokuwasha nokumisa i-graphite enwebekayo. Isici esikhulu sale ndlela ukuthi i-graphite yokusabela kanye nenkomba yokusebenza yomkhiqizo ingalawulwa ngokulungisa imingcele kagesi nesikhathi sokuphendula, ngokungcoliswa okuncane, izindleko eziphansi, ikhwalithi ezinzile nokusebenza okuhle kakhulu. Kuyaphuthuma ukuxazulula inkinga yokuxuba, ukuthuthukisa ukusebenza kahle nokunciphisa ukusetshenziswa kwamandla kunqubo yokuhlukaniswa.
Ngemuva kokukhishwa kwezinhlayiya ngenqubo ezimbili ezingenhla, isilinganiso sobuningi be-sulfuric acid wetting kanye ne-adsorption yama-graphite interlamellar compounds kusengaba ngu-1: 1, ukusetshenziswa kwe-intercalating agent kukhulu, futhi ukusetshenziswa kwamanzi okugeza nokukhishwa kwendle kuphezulu. Futhi iningi labakhiqizi abakaxazululanga inkinga yokwelashwa kwamanzi angcolile, esimweni sokukhishwa kwemvelo, ukungcoliswa kwemvelo kubucayi, kuzovimba ukukhula komkhakha.
Isikhathi Iposi: Aug-06-2021