Dị ka ihe ọhụrụ carbon na-arụ ọrụ, Expanded Graphite (EG) bụ ihe na-adịghị mma ma na-adịghị mma dị ka ikpuru nke enwetara site na flake graphite eke site na njikọta, ịsacha, ihicha na mgbasawanye okpomọkụ.EG Na mgbakwunye na ihe magburu onwe ya nke graphite eke onwe ya, dị ka oyi na okpomọkụ na-eguzogide, corrosion iguzogide na mmanu mmanu, ọ nwekwara àgwà nke nro, mkpakọ resilience, adsorption, gburugburu ebe obibi nchikota, biocompatibility na radieshon iguzogide na eke graphite. enweghị.N'ihe dị ka mmalite 1860s, Brodie chọtara graphite gbasaa site na ikpo ọkụ graphite sitere na kemịkalụ reagents dị ka sulfuric acid na nitric acid, mana ngwa ya amaliteghị ruo mgbe otu narị afọ gachara.Kemgbe ahụ, ọtụtụ mba amalitela nyocha na mmepe nke graphite gbasaa, ma mee nnukwu ọganihu sayensị.
graphite gbasaa na oke okpomọkụ nwere ike gbasaa ngwa ngwa nke 150 ruo 300 ugboro, site na mpempe akwụkwọ gaa na wormlike, nke mere na ihe owuwu ahụ bụ nke rụrụ arụ, porous na curved, n'elu ebe na-abawanye, elu ike na-mma, adsorption nke flake graphite bụ. emeziwanye, na graphite nke wormlike nwere ike ịbụ mosaic nke onwe, nke na-abawanye ịdị nro ya, resilience na plasticity.
Grafite na-agbasawanye (EG) bụ ngwakọta graphite interlayer enwetara site na graphite flake eke sitere na kemịkalụ oxidation ma ọ bụ oxidation electrochemical.N'ihe gbasara nhazi, EG bụ ihe mejupụtara nanoscale.Mgbe EG nwetara site na oxidation nke H2SO4 nkịtị na-edobe okpomọkụ dị elu karịa 200 ℃, mmeghachi omume REDOX na-eme n'etiti sulfuric acid na graphite carbon atom, na-emepụta nnukwu ego nke SO2, CO2 na mmiri vapor, nke mere na EG malitere ịgbasa. , na esịmde ya kacha olu na 1 100 ℃, na ikpeazụ olu nwere ike iru 280 ugboro nke mbụ.Ngwongwo a na-enye EG ohere imenyụ ire ọkụ site na mmụba nwa oge na nha ma ọ bụrụ na ọkụ.
Usoro ọkụ na-ere ọkụ nke EG bụ nke ọkụ na-eme ka ọkụ na-eme ka oge sie ike, nke na-eme ka ọkụ na-egbu oge site na igbu oge ma ọ bụ nkwụsị ọgbọ nke ihe ndị na-ere ọkụ site na ihe siri ike.EG Mgbe a na-ekpo ọkụ ruo n'ókè ụfọdụ, ọ ga-amalite ịgbasa, na graphite gbasaa ga-aghọ ọdịdị vermicular na njupụta dị nnọọ ala site na ọkwa mbụ, si otú a na-emepụta akwa mkpuchi mkpuchi dị mma.Mpempe akwụkwọ graphite gbasaa abụghị naanị isi iyi carbon na sistemụ gbasaa, kamakwa mkpuchi mkpuchi, nke nwere ike ikpo ọkụ nke ọma, igbu oge ma kwụsị ire ere nke polymer;N'otu oge ahụ, a na-etinye nnukwu okpomọkụ n'oge usoro mgbasawanye, nke na-ebelata okpomọkụ nke usoro ahụ.Na mgbakwunye, n'oge usoro mgbasawanye, a na-ahapụ ions acid na interlayer iji kwalite akpịrị ịkpọ nkụ na carbonization.
EG dị ka ọkụ na-echebe gburugburu ebe obibi na-enweghị halogen, uru ya bụ: adịghị egbu egbu, anaghị emepụta gas na-egbu egbu na nke na-emebi emebi mgbe a na-ekpo ọkụ, ma na-emepụta obere ọkụ ọkụ;Ọnụ ego mgbakwunye dị obere;Enweghị ntapu;Mgbanwe gburugburu ebe obibi siri ike, ọ dịghị ihe omume ọpụpụ;Uv nkwụsi ike na nkwụsi ike dị mma;Isi iyi zuru oke na usoro nrụpụta dị mfe.Ya mere, a na-eji EG mee ihe n'ọtụtụ dị iche iche nke ọkụ ọkụ na ihe ọkụ ọkụ, dị ka akara ọkụ, mbadamba ọkụ, ihe mkpuchi ọkụ na mgbochi static, akpa ọkụ, ihe mkpuchi ọkụ plastik, mgbanaka ọkụ na ọkụ ọkụ.
Oge nzipu: Nov-09-2023