Njengomsebenzi omtsha wekhabhoni, i-graphite eyandisiweyo (EG) yinto ekhululekile kunye ne-porous-like worm efunyenwe kwi-graphite flakes yendalo ngokudibanisa, ukuhlamba, ukomisa kunye nokwandiswa kobushushu obuphezulu.Ukongeza kwiipropathi ezigqwesileyo zegraphite yendalo efana nokumelana nokubanda kunye nobushushu, ukumelana nomhlwa kunye nokuzithambisa, i-EG nayo ineempawu zokuthamba, ukomelela koxinzelelo, i-adsorption, ulungelelwaniso lwendalo kunye nokusingqongileyo, ukuhambelana kwe-biocompatibility kunye nokumelana nemitha ukuba igraphite yendalo ayinayo. babe.Kwasebutsheni beminyaka yee-1860, uBrodie wafumanisa igraphite eyandisiweyo ngokufudumeza igraphite yendalo ngezinto ezisebenza ngemichiza efana nesulfuric acid kunye nenitric acid.Nangona kunjalo, ukusetyenziswa kwayo kwaqala emva kweminyaka elikhulu.Ukusukela ngoko, amazwe amaninzi aqhube ngokulandelelana uphando kunye nophuhliso lwegraphite eyandisiweyo kwaye enze impumelelo enkulu yesayensi.

Igraphite eyandisiweyo inokwandisa ngokukhawuleza amaxesha angama-150 ~ 300 kwivolumu kwiqondo lobushushu obuphezulu, kwaye itshintshe ukusuka kwi-flaky ukuya kwi-vermicular, okukhokelela kulwakhiwo oluxekekileyo, i-porous kunye negophe, indawo yomgangatho owandisiweyo, ukuphuculwa kwamandla angaphezulu, ukunyuswa kwe-adsorption ye-flake graphite, kunye ne-self-chimerism phakathi. igraphite ye-vermicular, eyandisa ukuguquguquka kwayo, ukuqina kunye neplastiki.
Izalathiso ezininzi zophuhliso lwegraphite eyandisiweyo zimi ngolu hlobo lulandelayo:

1. Igraphite eyandisiweyo ngeenjongo ezizodwa
Iimvavanyo zibonisa ukuba iintshulube zegraphite zinomsebenzi wokufunxa amaza ombane, nto leyo eyenza ukuba igraphite eyandisiweyo ibe nexabiso eliphezulu lokusetyenziswa emkhosini.Zombini umkhosi wase-US kunye nomkhosi wethu wenze uphando lovavanyo kule ndawo.Igraphite eyandisiweyo kufuneka ihlangabezane nezi mfuno zilandelayo: (1) iqondo lokushisa eliphantsi lokuqala kunye nomthamo omkhulu wokwandisa;(2) Ipropathi yemichiza izinzile, kwaye izinga lokwandiswa ngokusisiseko aliboli emva kweminyaka emi-5 yokugcina;(3) Umphezulu wegraphite eyandisiweyo ayithathi hlangothi kwaye ayinayo i-corrosion kwi-cartridge case.

2. Igraphite eyandisiweyo yegrafu
I-graphite eyandisiweyo encinci encinci ibhekiselele kwi-300-injongo yegraphite eyandisiweyo kunye nomthamo wokwandisa we-100ml / g.Le mveliso isetyenziswa kakhulu kwiingubo ezinqanda umlilo, kwaye imfuno yayo inkulu.

3. Igraphite eyandisiweyo enobushushu obuphezulu bokwandiswa kokuqala
Ubushushu bokuqala bokwandiswa kwegraphite eyandisiweyo kunye nobushushu bokuqala bokwandiswa kwe-290-300 ℃, kunye nomthamo wokwandisa ngu-≥ 230ml / g.Olu hlobo lolwandiso lwegraphite lusetyenziswa ikakhulu ekubambezelekeni komlilo kwiiplastiki zobunjineli kunye nerabha.Le mveliso iphuhliswe ngempumelelo yiYunivesithi yezoLimo ye-Hebei kwaye yafaka isicelo selungelo elilodwa lomenzi wechiza.

4. Umphezulu oguqulwe igraphite
Xa i-graphite eyandisiweyo isetyenziswa njengesixhobo sokunqanda ilangatye, ibandakanya ukunyibilika kwegraphite kunye nezinye izinto.Ngenxa yeqondo eliphezulu leminerali kumphezulu wegraphite, ayikho i-lipophilic okanye i-hydrophilic.Ngoko ke, kuyimfuneko ukuguqula umphezulu wegraphite ukuxazulula ingxaki yokuhambelana phakathi kwegraphite kunye namanye amacandelo.Abanye abantu baye bacebisa ukwenza umphezulu wegraphite ube mhlophe, oko kukuthi, ukugquma umphezulu wegraphite ngefilimu eqinileyo emhlophe.Le yingxaki enzima ukuyicombulula.Ibandakanya i-membrane chemistry okanye i-surface chemistry, enokuthi iphunyezwe kwilabhoratri.Kukho ubunzima kwimizi-mveliso.Olu hlobo lwegraphite emhlophe enwebekayo isetyenziswa ikakhulu njengezogqumethelo zedangatye.

5. Iqondo lobushushu lokuqala elisezantsi kunye negraphite eyandisiweyo yobushushu obuphantsi
Olu hlobo lwegraphite eyandisiweyo iqala ukwanda kwi-80-150 ℃, kwaye umthamo wayo wokwandisa ufikelela kuma-250ml/g kuma-600 ℃.Ubunzima ekulungiseleleni intlanganiso yegraphite eyandiswayo kulo mqathango bulele: (1) ekukhetheni i-arhente yokunxibelelana efanelekileyo;(2) Lawula kwaye ulawule iimeko zokomisa;(3) Ukuqinisekiswa kokufuma;(4) Isisombululo seengxaki zokukhuselwa kwendalo.Okwangoku, ukulungiswa kwegraphite enwebekayo enobushushu obuphantsi kusekwinqanaba lovavanyo.