Njengento entsha yekhabhoni esebenzayo, i-graphite enwetshiwe (EG) iyimpahla exegayo futhi enezimbotshana efana nezikelemu etholakala kumaflakthi emvelo e-graphite ngokuhlangana, ukuwasha, ukomiswa kanye nokwanda kwezinga lokushisa eliphezulu.Ngaphezu kwezakhiwo ezinhle kakhulu ze-graphite yemvelo njengokumelana nokubanda nokushisa, ukumelana nokugqwala kanye nokuzigcoba, i-EG nayo inezici zokuthambile, ukuqina kokucindezela, i-adsorption, ukusebenzelana kwemvelo nemvelo, i-biocompatibility kanye nokumelana nemisebe igraphite yemvelo ayinayo. babe.Ngasekuqaleni kwawo-1860, u-Brodie wathola i-graphite enwetshiwe ngokufudumeza i-graphite yemvelo ngezinto ezisebenza ngamakhemikhali njenge-sulfuric acid ne-nitric acid.Nokho, ukusetshenziswa kwayo kwaqala ngemva kweminyaka eyikhulu.Kusukela lapho, amazwe amaningi aye enza ucwaningo nokuthuthukiswa kwe-graphite eyandisiwe futhi enza impumelelo enkulu kwezesayensi.

I-graphite enwetshiwe inganwebeka ngokushesha izikhathi eziyi-150 ~ 300 ngevolumu ekushiseni okuphezulu, futhi ishintshe isuka ku-flaky iye ku-vermicular, okuholela ekwakhiweni okuxekethile, i-porous kanye negobile, indawo enwetshiwe, amandla angaphezulu athuthukisiwe, ukukhanyiswa okuthuthukisiwe kwe-flake graphite, kanye nokuzikhandla phakathi i-vermicular graphite, okwandisa ukuguquguquka kwayo, ukuqina kanye nepulasitiki.
Izikhombisi-ndlela zokuthuthukiswa eziningana ze-graphite enwetshiwe zimi kanje:

1. I-graphite enwetshiwe ngezinjongo ezikhethekile
Ukuhlola kubonisa ukuthi izikelemu ze-graphite zinomsebenzi wokumunca amagagasi kagesi, okwenza i-graphite enwetshiwe ibe nenani eliphezulu lezempi.Kokubili amasosha ase-US namasosha ethu enze ucwaningo lokuhlola kule ndawo.I-graphite eyandisiwe kufanele ihlangabezane nezidingo ezilandelayo: (1) izinga lokushisa eliphansi lokuqala lokunwetshwa kanye nevolumu enkulu yokwandisa;(2) Indawo yamakhemikhali izinzile, futhi izinga lokunwetshwa aliboli ngemva kweminyaka emi-5 yokugcinwa;(3) Ingaphezulu legraphite elinwetshiwe alithathi hlangothi futhi alinakho ukugqwala kwekesi le-cartridge.

2. I-graphite enwetshiwe eyimbudumbudu
I-graphite enwetshiwe enezinhlayiyana ezincane ibhekisela ikakhulukazi ku-graphite enwebekayo enezinjongo ezingu-300 enomthamo wokunwebeka ongu-100ml/g.Lo mkhiqizo usetshenziselwa ikakhulukazi ukumboza i-flame-retardant, futhi isidingo sawo sikhulu.

3. I-graphite enwetshiwe enezinga eliphezulu lokushisa lokuqala lokunwetshwa
Izinga lokushisa lokuqala lokunwetshwa kwegraphite enwetshiwe enezinga eliphezulu lokushisa lokuqala lokunwetshwa ngu-290-300 ℃, futhi ivolumu yokunweba ingu-≥ 230ml/g.Lolu hlobo lwe-graphite enwetshiwe lusetshenziselwa ikakhulukazi ukuvinjelwa komlilo wamapulasitiki wobunjiniyela kanye nerabha.Lo mkhiqizo uthuthukiswe ngempumelelo yi-Hebei Agricultural University futhi wafaka isicelo selungelo lobunikazi likazwelonke.

4. I-graphite eguquliwe ebusweni
Uma i-graphite eyandisiwe isetshenziswa njengento evimbela ilangabi, ihilela ukuncibilika kwegraphite nezinye izakhi.Ngenxa yezinga eliphezulu lokugaywa kwamaminerali ebusweni be-graphite, akuyona i-lipophilic noma i-hydrophilic.Ngakho-ke, kuyadingeka ukuguqula ubuso be-graphite ukuxazulula inkinga yokuhambisana phakathi kwe-graphite nezinye izingxenye.Abanye abantu baye bahlongoza ukwenza i-graphite ibe mhlophe, okungukuthi, ukumboza i-graphite ngefilimu emhlophe eqinile.Lena inkinga enzima ukuyixazulula.Kubandakanya i-membrane chemistry noma i-surface chemistry, engafinyelelwa elabhorethri.Kunobunzima ekuthuthukisweni kwezimboni.Lolu hlobo lwe-graphite enwebekayo emhlophe lusetshenziswa kakhulu njenge-flame retardant coating.

5. Izinga lokushisa eliphansi lokuqala lokunwetshwa kanye nezinga lokushisa eliphansi elinwetshiwe legraphite
Lolu hlobo lwe-graphite eyandisiwe luqala ukwanda ku-80-150 ℃, futhi umthamo walo wokunweba ufinyelela ku-250ml/g ku-600 ℃.Ubunzima ekulungiseleleni umhlangano we-graphite onwebekayo kulo mbandela buseku: (1) ukukhetha i-ejenti yokuxhumana efanele;(2) Lawula futhi ulawule izimo zokomisa;(3) Ukunqunywa komswakama;(4) Isixazululo sezinkinga zokuvikelwa kwemvelo.Njengamanje, ukulungiswa kwe-graphite enwebekayo enezinga lokushisa eliphansi kusesesigabeni sokuhlola.