Pamene graphite ikukonzedwa ndi mankhwala, mankhwalawo amachitidwa nthawi imodzi m'mphepete mwa graphite yowonjezereka komanso pakati pa wosanjikiza. Ngati graphite ndi yodetsedwa ndipo ili ndi zodetsa, zolakwika za lattice ndi dislocations zidzawonekera, zomwe zimapangitsa kuti dera la m'mphepete likule komanso kuwonjezeka kwa malo ogwirira ntchito, zomwe zidzafulumizitsa reaction ya m'mphepete. Ngakhale izi ndizothandiza pakupanga mankhwala a m'mphepete, zidzakhudza mapangidwe a mankhwala owonjezera a graphite intercalation. Ndipo lattice yoyikidwa imawonongeka, zomwe zimapangitsa lattice kukhala yosasinthasintha komanso yosasinthasintha, kotero kuti liwiro ndi kuzama kwa kufalikira kwa mankhwala ku interlayer ndi kupanga mankhwala ozama a intercalation zimalepheretsedwa komanso zochepa, zomwe zimakhudzanso kukula kwa digiri yowonjezera. Chifukwa chake, ndikofunikira kuti kuchuluka kwa zodetsa za graphite kuyenera kukhala mkati mwa mulingo womwe watchulidwa, makamaka zodetsa za granular siziyenera kukhalapo, apo ayi ma graphite scales adzadulidwa panthawi yokakamiza, zomwe zimachepetsa ubwino wa zinthu zopangidwa. Mkonzi wotsatira wa graphite wa Furuite akulengeza kuti kuyera kwa zinthu zopangira graphite kumakhudza katundu wa graphite yowonjezereka:
Kukula kwa tinthu ta graphite kumakhudzanso kwambiri kupanga graphite yokulirapo. Kukula kwa tinthu tating'onoting'ono ndi kwakukulu, malo enieni a pamwamba ndi ochepa, ndipo malo omwe amagwiritsidwa ntchito mu reaction ya mankhwala ndi ochepa. M'malo mwake, ngati tinthu tating'onoting'ono ndi tating'onoting'ono, malo ake enieni a pamwamba ndi akulu, ndipo malo ochitira nawo reaction ya mankhwala ndi akulu. Kuchokera ku kusanthula kwa kuuma kwa zinthu za mankhwala kulowa, n'kosapeweka kuti tinthu tating'onoting'ono ta graphite timene timapangitsa kuti mamba a graphite akhale okhuthala, ndipo mipata pakati pa zigawo ikhale yakuya, kotero zimakhala zovuta kuti mankhwala alowe mu gawo lililonse, ndipo zimakhala zovuta kwambiri kufalikira m'mipata pakati pa zigawo kuti zipangitse zigawo zakuya. Izi zimakhudza kwambiri kuchuluka kwa graphite yokulirapo. Ngati tinthu ta graphite ndi tating'onoting'ono kwambiri, malo enieni a pamwamba adzakhala akulu kwambiri, ndipo reaction ya m'mphepete idzakhala yayikulu, zomwe sizingathandize kupanga ma intercalation compounds. Chifukwa chake, tinthu ta graphite sitiyenera kukhala tating'onoting'ono kwambiri kapena tating'ono kwambiri.
Mu malo omwewo, mu ubale pakati pa kuchulukana kwa tinthu tating'onoting'ono ndi kukula kwa tinthu ta graphite yokulirapo yopangidwa ndi graphite yokhala ndi tinthu tating'onoting'ono tosiyanasiyana, kuchulukana kwa loleus kumakhala kochepa, zotsatira za graphite yokulirapo zimakhala zabwino. Komabe, popanga zenizeni, zawonetsedwa kuti kukula kwa tinthu ta graphite yomwe imagwiritsidwa ntchito makamaka ndi kuyambira -30 mesh mpaka +100 mesh, yomwe ndi zotsatira zabwino kwambiri.
Mphamvu ya kukula kwa tinthu ta graphite imawonekeranso chifukwa chakuti kapangidwe ka tinthu ta zosakaniza sikuyenera kukhala kokulirapo kwambiri, ndiko kuti, kusiyana kwa kukula kwa tinthu tating'onoting'ono pakati pa tinthu tating'onoting'ono ndi tating'onoting'ono sikuyenera kukhala kwakukulu kwambiri, ndipo zotsatira zake zidzakhala bwino ngati kapangidwe ka tinthu tating'onoting'ono kamakhala kofanana. Zogulitsa za Furuite graphite zonse zimapangidwa ndi graphite yachilengedwe, ndipo khalidwe lake limafunika kwambiri popanga. Zogulitsa za graphite zomwe zakonzedwa ndikupangidwa zakhala zikukondedwa ndi makasitomala atsopano ndi akale kwa zaka zambiri, ndipo nthawi zonse mumalandiridwa kuti mufunse ndikugula!
Nthawi yotumizira: Mar-13-2023