Iyini i-Graphite Powder?

(Iyini i-Graphite Powder?)

I-graphite powder ingasetshenziswa ezinhlelweni eziningi, kufaka phakathi imibhobho ye-carbon noma imicu ye-carbon. Kuyiminerali eqhubayo engakha izinzwa zokucindezela kumakrofoni ekhabhoni. Ibuye isetshenziswe njenge-polymer ene-carbon fiber-reinforced. I-graphite ingaqhuba ugesi ngenxa yokukhishwa okubanzi kwama-electron ngaphakathi kwezingqimba zawo. Ugesi wenziwa ngokuyinhloko ngaphakathi kwezingqimba zekhabhoni.

I-Graphite

I-graphite iyinto eguquguqukayo esetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, kusukela ezingxenyeni zikagesi kuya emikhunjini ephikisayo. Impushana iphinde isetshenziselwe ukwenza izakhiwo ze-microfluidic kubuchwepheshe be-LTCC. Ngaphezu kwalokho, i-colloidal graphite isetshenziswa njengesivikelo sokuphazamiseka kwe-electromagnetic kusimende.

I-graphite iphinde isetshenziswe ngokujwayelekile kumapende njengesithambiso sokwandisa okuqukethwe kwekhabhoni kunsimbi nezinsimbi. Ngenxa yezimfanelo zayo zokuqhuba, i-graphite ingasetshenziswa futhi kumakrofoni ekhabhoni njengenzwa yokucindezela. Ngaphezu kwalokho, inezinhlelo zokusebenza eziningi ekukhiqizeni amathuluzi.

I-graphite powder ingasetshenziselwa umthunzi kanye nemidwebo yethoni. Yenziwe ngento engokwemvelo, eyikristalu enosayizi wezinhlayiyana zama-microns amahlanu. Ungayifaka ezindaweni ngebhulashi noma i-chamois. Ukuminyana kwayo okubonakalayo kungu-0.25 g/cc.

I-graphite powder iyisakhi esivamile kuma-brake linings namabhethri emoto. Izakhiwo zayo zokuthambisa ziyenza ibe yinto ewusizo ezinhlelweni zokushisa ezisezingeni eliphezulu. I-graphite ingasetshenziswa futhi ekubholeni amafutha noma amabhethri e-carbon. Iphuzu eliphakeme lokuncibilika le-graphite lenza kube ukukhetha okuhle kakhulu ezindaweni ezishisayo.

I-graphite powder iza ngamamaki ahlukahlukene. Amagranulation amaningi ajwayelekile asukela phakathi kwamameshi amahlanu e-USS kanye nama-microns angu-0.7. I-graphite yemvelo isetshenziswa ngokuyinhloko ezintweni eziphikisayo. Ibuye isetshenziswe kuma-brake linings, ama-electrode, nama-conductive coatings. I-graphite ingasetshenziswa futhi njengento yokumaka kanye namapensela avamile.

Kwezinye izimo, i-graphite powder ingasetshenziswa ukuthuthukisa amandla e-epoxy. Ingengezwa ngevolumu engu-10 wt% futhi ixutshwe ne-epoxy ngesilinganiso esingu-3:1 noma 5:1. Ungayingeza cishe kugaloni le-epoxy. Xuba i-12 oz 423 i-Graphite powder engxenyeni ukuze wengeze igraphite kugaloni le-epoxy.

I-graphite evela esifundeni A

Umbiko wocwaningo lweMakethe ye-Global Graphite Powder unikeza idatha yemboni yakamuva kanye nemininingwane, ehlola imakethe ngemibono ehlukene. Umbiko uhlaziya amasheya emakethe kanye namazinga okukhula ka-2022-2028. Iphinde inikeze imininingwane ngezimakethe zesifunda.

Ama-elementi kaphethiloli we-graphite asetshenziswa kuma-reactors ashisa kakhulu. Lawa ma-elementi kaphethiloli aqukethe i-graphite matrix lapho izinhlayiya zikaphethiloli ezimboziwe zishumekwa khona. Lezi zinhlayiya ngokuvamile ziqukethe i-uranium oxides nama-carbides. Zingahluka ngosayizi phakathi kwamamilimitha angu-0.2 no-0.8. Izinhlayiya zimbozwe izendlalelo eziqinile zegesi ezenziwe nge-carbon ne-silicon carbide.

I-graphite inamandla okubuyisela emuva acishe abe ngu-300-370 mAh ngegremu ngayinye. I-graphite isetshenziswa kumaseli amaningi e-lithium-ion ezentengiselwano. Ngokungeziwe kumthamo obuyiselwa emuva, i-graphite ibonisa izinga eliphezulu lokuphinda lisetshenziswe. Ngenxa yalokho, i-graphite powder inesidingo esikhulu samabhethri e-lithium-ion.

Kuyabiza ukwenza i-graphite powder. Lokhu kudinga izitshalo ezinkulu zokukhiqiza. Ngokuvamile itholakala ngokusabela kwe-phenol ne-formaldehyde nge-acid catalyst. Lokhu kuhlanganisa ukupholisa amaketela amakhulu nokuwafudumeza. I-vacuum noma i-steam distillation isetshenziselwa ukususa i-resin encibilikisiwe. Impahla ewumphumela iyakhishwa, ihlukaniswe, ihlungwe futhi igaywe. Impushana ye-graphite ekhiqizwa ngale ndlela kufanele ibe yezakhiwo ezithile okufanele zisetshenziswe ekubumbeni izicelo. Ngaphezu kwalokho, kudinga inani elikhulu lokuhlola okubizayo.

Inqubo yokudala i-phenolic resin inzima futhi iyabiza. Kudinga isikhathi eside sokuphendula, esihlala noma yikuphi ukusuka kumaminithi angu-15 kuya kwangu-45. Ngaphezu kwalokho, kubalulekile ukuqaphela ukuthi ukusabela kwenzeka ekushiseni okuphansi kunaleyo ye-phenolic resin. Umphumela uba i-graphite powder enomthamo ophansi kanye nezakhiwo ezingcono zomzimba.

I-graphite evela esifundeni B

I-graphite powder idlala indima ebalulekile ezingxenyeni ze-elekthronikhi. Ine-conductivity kagesi ephezulu. Kodwa-ke, lesi sakhiwo singathinteka kabi ngokuchayeka kumpushana. Ukuvimbela lokhu, impushana kufanele isetshenziswe endaweni enomoya omuhle. Ukusebenzisa imaski kungase futhi kusize ekugwemeni ithuba lokuhogela impushana. Kubalulekile ukusebenzisa izinyathelo ezifanele zokuqapha lapho uphatha i-graphite powder.

I-graphite iyinto eguquguqukayo kakhulu esetshenziselwa izinjongo ezahlukahlukene. Ayinqamuli amanzi futhi inganikeza ukunamathela okuvikelayo kwezinkuni noma ezinye izindawo. Ibuye isetshenziswe kabanzi njengento ephikisayo futhi isiza ekucubunguleni insimbi nengilazi. I-graphite iphinde ibe yinto esebenzayo yokumunca ama-neutron ahamba ngokushesha kanye nokuzinzisa ukusabela kwe-nuclear.

Esinye isici se-graphite yikhono layo lokuncibilika nokushiswa. Ukushiswa kuyindlela evamile yokupholisha i-graphite. Iphuzu lepensela iyithuluzi elikhulu lokushisa i-graphite. Iphuzu lepensela lingahlikihlwa endaweni ye-graphite ukuze bushelelezi izindawo ezimahhadlahhadla.

Ucwaningo lwe-TEM ku-90% lwe-graphite powder luphinde lwathola ukuthi luqukethe inani elincane lekhabhoni ephazamisekile. Isithombe sokukhulisa okuphezulu sibonise ama-pores namaphethelo wesithombe. Ngaphezu kwalokho, isampula ebusa i-graphite itholwe iqukethe i-carbon eyeqile engeyona i-graphitizing.

Amashidi e-ultrathin graphite avelayo nawo adalwe yile ndlela, okwandisa ukuqhutshwa kukagesi kuma-Site electrode. 

Amashidi e-graphite aphumayo aphinde athuthukisa ukujikeleza kwe-electrode ye-Si/GS. Baphinde banciphisa izinga lokwakheka kwemifantu.

I-graphite evela esifundeni C

Impushana yegraphite iyingozi ngezindlela ezintathu: ngokuyiphefumula, ukuthinta isikhumba, kanye nokuthintana nezingxenye zikagesi. Uma impushana iphefumula, ingabangela ukucasuka kwamaphaphu namehlo. Iyavutha futhi. Ngenxa yalokho, kubalulekile ukusebenzisa izinto zokuzivikela ezifanele lapho uzisingatha.

Izinga le-NEMA lichaza "ukuminyana kwenqwaba" njengokuminyana okusobala kwempushana yegraphite. Ngokusebenzisa leli zinga, kungenzeka ukubala ukuminyana kwenqwaba ye-graphite powder ehlangabezana nezinga lelungelo lobunikazi. Leli zinga lisebenza kuphela ku-powder graphite ehlangabezana nazo zonke izimfuneko ze-'694 patent.

I-graphite isetshenziswa ezimbonini eziningi. Ukuthuthukiswa kwamabhethri kuwumshayeli omkhulu wesidingo se-graphite. Lawa mabhethri asetshenziswa ezintweni zikagesi eziphathwayo njengezidlali ze-CD namathuluzi kagesi. Isidingo se-graphite sinyukile ngenxa yokuduma kwamathebhulethi, ama-smartphones, namakhompyutha aphathekayo. Izicelo zesikhathi esizayo zifaka amabhethri emoto kagesi. Ngokwesibonelo, ibhethri lithium-ion ku "Nissan Leaf" iqukethe mayelana 40 kg graphite.

I-graphite i-conductor ekwazi ukumelana nokushisa okuphezulu. I-graphite ayinakho ukuncibilika, ngokungafani nezinye izinto eziningi. Lesi sakhiwo sifezwa ngenqubo eyaziwa ngokuthi i-sublimation. I-graphite iyancipha emazingeni okushisa angaba ngu-2500 degrees Celsius, ngisho nangaphandle kwe-oxygen.

Impushana yegraphite esifundeni C iqukethe inani eliphakeme lokuhlanzeka okungu-00l elinezinga eliphakeme lokucwebezela. Ungqimba oluqhubekayo lwe-ultra-fine, i-microcrystalline SiC yakheka phezu kwegraphite encibilike kancane.

I-graphite evela esifundeni D

I-graphite powder esifundeni D inezifunda ezimbili ezingase zikhokhiswe. I-interface ithuthela ku-graphite esimweni sokuqala. Esimweni sesibili, iba idayimane elihlanzekile. Lezi zimo zokukhokha zihlobene nama-engeli azo. Lawa ma-engeli akhombisa izinguquko zendawo ezenzeke esakhiweni.

Izendlalelo ze-athomu zegraphite nedayimane ziyacindezelwa, ziyagoba, kanye nokuslayida kwe-interlayer. Lokhu kusebenzisana kungase kudale ukuhlangana okusha kuzo zonke izendlalelo zegraphite ezingomakhelwane. Ngaphezu kwalokho, isixhumi esibonakalayo sivumela ukuhlukahluka kwesakhiwo sasendaweni ngokudlulela kungqimba lwegraphite. Inqubo enjalo ikhuthaza ukukhula kwedayimane.

Ngasekupheleni kwawo-1980, ukusetshenziswa kwe-graphite kwanda ngenxa yokuthuthukiswa kwe-electronics ephathekayo. Lezi zinto eziphathekayo zazihlanganisa izidlali ze-CD eziphathwayo, amathuluzi kagesi, namakhompyutha aphathwayo. Isidingo esikhulayo se-graphite sizokhula ngenxa yesidingo esikhulayo sezimoto zikagesi. I-Nissan Leaf, isibonelo, inebhethri ye-lithium-ion equkethe cishe u-40 kg we-graphite.

I-graphite powder isetshenziswa ngezindlela ezihlukahlukene ngezinjongo zobuciko. Abanye abaculi bayisebenzisela ukufaka umbala, kanti abanye bayisebenzisela amamaki agqamile noma i-gradation. Ukusebenzisa i-graphite powder ekwenzeni i-shading kanye ne-gradation kuvumela umdwebi ukuthi ahlole amathuluzi ahlukene nezindlela zokusebenza. Ungayisebenzisa futhi ukudweba ezindaweni ezithambile.

I-graphite, okuyimpahla empunga-greyish, icwebezela kodwa icwebezela kancane. Lokhu kuyenza ibe yimpahla enhle yokwenza amapensela nezinti. Ikhiqiza uthuli oluncane kunezinye izinto, okuyenza ilungele amapensela namanye amathuluzi okubhala. Inesakhiwo esinezingqimba ezifanayo esinamabhondi e-athomu aqinile ngaphakathi kongqimba ngalunye. Lokhu kwenza amashidi e-graphite asheleleke kalula phezu kwamanye.

Mayelana ne-RBOSCHCO

I-RBOSCHCO ingumhlinzeki wezinto zamakhemikhali othembekile emhlabeni wonke kanye nomkhiqizi onesipiliyoni seminyaka engaphezu kwengu-12 ekuhlinzekeni ngamakhemikhali asezingeni eliphezulu kanye nama-Nanomaterials. Le nkampani ithumela kwamanye amazwe amaningi, njenge-USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal njll. Njengomkhiqizi ohamba phambili wokuthuthukiswa kwe-nanotechnology, i-RBOSCHCO ibusa imakethe. Ithimba lethu lomsebenzi lochwepheshe linikeza izixazululo eziphelele zokusiza ukuthuthukisa ukusebenza kahle kwezimboni ezahlukene, ukudala inani, kanye nokubhekana kalula nezinselele ezahlukahlukene. Uma ufuna i-graphite powder, sicela usithinte noma uthumele i-imeyili ku: [email protected]

(Iyini i-Graphite Powder?)