Pambuyo graphite expandable ndi yomweyo ankachitira pa kutentha, lonse amakhala mphutsi, ndi buku akhoza kuwonjezera 100-400 zina. graphite yowonjezedwayi imasungabe mawonekedwe a graphite yachilengedwe, imakhala ndi kukula kwabwino, imakhala yotayirira komanso yopindika, ndipo imalimbana ndi kutentha pansi pa zotchinga za okosijeni. Zosiyanasiyana, zimatha kukhala pakati pa -200 ~ 3000 ℃, katundu wamankhwala ndi okhazikika pansi pa kutentha kwakukulu, kuthamanga kwambiri kapena kutentha kwa dzuwa, kusindikiza kwamphamvu komanso kusinthasintha kwa mafuta, mankhwala, magetsi, ndege, magalimoto, sitima ndi zida zogwiritsira ntchito Pali ntchito zambiri. Olemba otsatirawa a Furuit Graphite adzakutengerani kuti mumvetsetse njira zomwe zimapangidwira za graphite yowonjezereka:
1. Akupanga makutidwe ndi okosijeni njira kupanga expandable graphite.
M'kati kukonzekera expandable graphite, akupanga kugwedera ikuchitika pa anodized electrolyte, ndi nthawi ya akupanga kugwedera ndi chimodzimodzi kuti anodization. Popeza kugwedezeka kwa electrolyte ndi akupanga yoweyula kumapindulitsa polarization ya cathode ndi anode, liwiro la anodic makutidwe ndi okosijeni imathandizira ndipo makutidwe ndi okosijeni nthawi yafupikitsidwa;
2. Njira yamchere yosungunuka imapanga graphite yowonjezera.
Sakanizani zoyikapo zingapo ndi graphite ndi kutentha kuti mupange graphite yowonjezereka;
3. Njira ya kufalikira kwa gasi imagwiritsidwa ntchito kupanga graphite yowonjezera.
The graphite ndi zinthu intercalated ankalemekeza anabweretsa malekezero awiri a vakuyumu losindikizidwa chubu, usavutike mtima pa mapeto a intercalated zakuthupi, ndi zofunika anachita anachita kuthamanga kusiyana aumbike ndi kutentha kusiyana pakati pa malekezero awiri, kotero kuti intercalated zakuthupi akulowa flake graphite wosanjikiza mu boma la mamolekyu ang'onoang'ono, potero Okonzeka expandable graphite. Chiwerengero cha zigawo za graphite yowonjezera yopangidwa ndi njira iyi ikhoza kuwongoleredwa, koma mtengo wake wopanga ndi wokwera;
4. The mankhwala intercalation njira amapanga graphite expandable.
The zopangira koyamba ntchito pokonzekera ndi mkulu mpweya flake graphite, ndi reagents mankhwala ena monga anaikira sulfuric acid (pamwamba 98%), wa hydrogen peroxide (oposa 28%), potaziyamu permanganate, etc. onse reagents mafakitale kalasi. Masitepe ambiri kukonzekera ndi motere: pa kutentha yoyenera, yankho la hydrogen peroxide, masoka flake graphite ndi anaikira asidi sulfuric za mulingo wosiyana anachita kwa nthawi inayake pansi yogwira ntchito ndi njira zosiyanasiyana Kuwonjezera, ndiye osambitsidwa ndi madzi kusalowerera ndale, ndi centrifuged, Pambuyo madzi m`thupi, zingalowe kuyanika pa 60 °C;
5. Electrochemical kupanga graphite expandable.
Graphite ufa ndi mankhwala amphamvu asidi electrolyte kupanga expandable graphite, hydrolyzed, otsukidwa ndi zouma. Monga asidi amphamvu, sulfuric acid kapena nitric acid amagwiritsidwa ntchito kwambiri. The expandable graphite anapezedwa njira imeneyi ali otsika sulfure okhutira.
Nthawi yotumiza: May-27-2022