Graphite inowedzerwa inogadzirwa nenzira mbiri: makemikari ne electrochemical. Maitiro maviri aya akasiyana pamusoro pemaitiro e oxidation, deacidization, washing nemvura, hydration, omesa uye mamwe maitiro akafanana. Hunhu hwezvigadzirwa zvevagadziri vazhinji vanoshandisa nzira yemakemikari hunogona kusvika pa index yakatarwa mu GB10688-89 "expandable graphite", uye kusangana nezvinodiwa zvekugadzira bulk flexible graphite sheet uye export supply standards.
Asi kugadzirwa kwezvinodiwa zvakakosha zve low volatile (≤10%), low sulfur content (≤2%) yezvigadzirwa zvakaoma, maitiro ekugadzira haasi kupfuura. Kusimbisa manejimendi yehunyanzvi, kudzidza maitiro ekubatanidza nekungwarira, kugona hukama huripo pakati pema process parameters uye mashandiro ezvigadzirwa, uye kugadzira stable quality expandable graphite ndiyo kiyi yekuvandudza mhando yezvigadzirwa zvinotevera. Muchidimbu cheQingdao Furuite Graphite: nzira ye electrochemical isina mamwe ma oxidants, natural flake graphite uye assixival anode pamwe chete zvinoumba anode chamber yakanyikwa mu concentrated sulfuric acid electrolyte, kuburikidza ne direct current kana pulse current, oxidation mushure menguva yakati yekubvisa, mushure mekushambidzwa nekuomeswa i expansible graphite. Hunhu hukuru hweiyi nzira ndeyekuti reaction degree ye graphite uye performance index yechigadzirwa zvinogona kudzorwa nekugadzirisa ma parameter emagetsi nenguva ye reaction, nekusvibiswa kudiki, mutengo wakaderera, stable quality uye performance yakanaka. Zvinokurumidza kugadzirisa dambudziko rekusanganisa, kuvandudza mashandiro uye kuderedza kushandiswa kwesimba mu intercalation process.
Mushure mekubviswa kweacid nemaitiro maviri ari pamusoro apa, chiyero chehukuru hwe sulfuric acid wetting uye adsorption ye graphite interlamellar compounds ichiri 1:1, kushandiswa kwe intercalating agent kwakakura, uye kushandiswa kwemvura yekugeza uye kubuda kwetsvina kwakakwira. Uye vagadziri vazhinji havana kugadzirisa dambudziko rekurapa mvura yakasviba, mumamiriro ekubuda kwechisikigo, kusvibiswa kwezvakatipoteredza kwakakomba, zvichakanganisa kukura kweindasitiri.
Nguva yekutumira: Nyamavhuvhu-06-2021