Igraphite eyandisiweyo, ekwabizwa ngokuba yivermicular graphite, iyikhompawundi eyikristale esebenzisa iindlela zomzimba okanye zekhemikhali ukuhlanganisa iireactants ezingezizo zekhabhoni zibe zezendalo zegraphical intercalated nanocarbon materials kwaye zidibanise necarbon hexagonal network planes ngelixa zigcina ubume beGraphite layer. Ayigcini nje ngokugcina iimpawu ezibalaseleyo zomzimba kunye neekhemikhali zegraphite, ezifana nokumelana nobushushu obuphezulu, ukumelana nokugqwala, i-neutron flux, i-X-ray kunye ne-gamma-reyi yexesha elide. Ikwanayo neempawu ezibalaseleyo zomzimba kunye neekhemikhali, ezifana ne-coefficient ephantsi ye-friction, i-self-lubrication elungileyo, umbane kunye ne-thermal conductivity, kunye ne-anisotropy. Ngaphezu koko, ngenxa yentsebenziswano phakathi kwemathiriyeli edibeneyo kunye nomaleko wegraphite, igraphite eyandisiweyo ibonisa iipropathi ezintsha ezingenazo igraphite ecocekileyo kunye nemathiriyeli edibeneyo, kwaye yoyisa ubuqhophololo kunye nokumelana nempembelelo yegraphite yendalo. Aba bahleli balandelayo be-Furuite graphite babelane ngokuqaliswa kweendlela ze-industrial synthesis kunye nokusetyenziswa kwegraphite eyandisiweyo:
1. Iindlela zokwenziwa eziqhele ukusetyenziswa kushishino
①I-Chemical oxidation
Izinto eziluncedo: I-Chemical oxidation yindlela esetyenziswa kakhulu kwaye isekwe kakuhle kwishishini. Ngoko ke, ineenzuzo ezicacileyo, iteknoloji evuthiweyo kunye neendleko eziphantsi.
Ukungalungi: I-agent edibeneyo idla ngokuxinana i-asidi ye-sulfuric, edla isixa esikhulu se-asidi. Kukho i-Sox yongcoliseko lwegesi eyingozi kwinkqubo yokuvelisa, kwaye iintsalela kwimveliso ziphinda zigqwese izixhobo zokudibanisa.
②I-Electrochemical oxidation
Njengokuxutywa kweekhemikhali, yenye yeendlela eziqhelekileyo zokwenziwa kwemizi-mveliso yegraphite eyandisiweyo.
Iingenelo: Akukho mfuneko yokongeza i-oxidants eyomeleleyo, efana ne-acids ezomeleleyo, kunye ne-reaction inokulawulwa ngokulungelelanisa iiparamitha ezifana nezangoku kunye ne-voltage. Isixhobo sokudibanisa silula, isixa sokwenziwa sikhulu, i-electrolyte ayingcoliswanga, kwaye ingaphinda isetyenziswe.
Ukungalungi: Ukuzinza kwemveliso eyenziweyo ihlwempuzekile kunezinye iindlela, ezifuna izixhobo eziphezulu, kwaye kukho izinto ezininzi ezichaphazela umgangatho wemveliso. Ngamanye amaxesha, umthamo owandisiweyo wemveliso uyancipha kakhulu ngenxa yokunyuka kweqondo lokushisa. Ukongeza, kukho iimpendulo ezisecaleni kwimisinga ephezulu kwizisombululo ezinamanzi, ngoko ke kunzima ukufumana iikhompawundi zomyalelo wokuqala.
2. Amashishini amakhulu emveliso kunye namandla okuvelisa
Ukuveliswa kweemveliso zegraphite ezandisiweyo kwilizwe lam kuye kwanda ukusuka kwinqanaba lokuqala ukuya kubavelisi abangaphezu kwe-100, kunye nesiphumo sonyaka malunga neetoni ezingama-30,000, kwaye ukuxinwa kweemarike kuphantsi. Kwakhona, uninzi lwabavelisi ngokuyintloko zizizalisi ezikwisiphelo esisezantsi, ezingafane zisetyenziswe kwizitywina zeemoto kunye nezibane zenqwelomoya zenyukliya. Nangona kunjalo, ngophuhliso lobuchwepheshe basekhaya, umlinganiselo weemveliso eziphezulu ziya kunyuka ngokuthe ngcembe.
3. Imfuno yemarike kunye noqikelelo lwemathiriyeli yokutywina
Okwangoku, igraphite eyandisiweyo isetyenziswa ikakhulu njengezixhobo zokutywina zemoto, ezinje nge-cylinder gaskets, intake and exhaust port gaskets, njl. njl. Izinto zokutywina ezandisiweyo zegraphite kwilizwe lam zisetyenziswa kakhulu njengezizalisi zokutywina. Okwangoku, i-graphite eyandisiweyo enomxholo wekhabhoni ephantsi iye yaphuhliswa, enokunciphisa kakhulu iindleko zokuvelisa i-graphite eyandisiweyo, ngaloo ndlela ithatha indawo ye-asbestos kwizinga elikhulu kunye nokunyuka kwemfuno. Kwelinye icala, ukuba iplastiki, irabha kunye nemathiriyeli yokutywina yesinyithi inokutshintshwa ngokuyinxenye, imfuno yasekhaya yonyaka yezixhobo zokutywina ezandiswayo zegraphite iya kuba nkulu.
Kushishino lweemoto, igasket yemoto nganye ye-cylinder head, i-air intake kunye ne-exhaust port gasket idinga malunga ne-2 ~ 10kg yegraphite eyandisiweyo, kwaye zonke iimoto ezili-10,000 zifuna i-20 ~ 100 yeetoni zegraphite eyandisiweyo. Ishishini leemoto laseTshayina lingene kwixesha lophuhliso olukhawulezayo. Ke ngoko, imfuno yelizwe lam yonyaka yezixhobo zokutywina ezandisiweyo zegraphite iseyinjongo enkulu.
Ixesha lokuposa: Sep-07-2022