Njira zodziwika zopangira ma graphite owonjezera

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 ℃, mankhwala amakhala okhazikika pansi pa kutentha kwakukulu, kuthamanga kwambiri kapena kutentha kwa dzuwa, kusindikiza kwamphamvu komanso kusinthasintha kwa mafuta, mankhwala, magetsi, ndege, magalimoto, sitima ndi zida zopangira zida. osiyanasiyana ntchito. Olemba otsatirawa a Furuit Graphite adzakutengerani kuti mumvetsetse njira zodziwika zopangira ma graphite owonjezera:
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 intercalated zakuthupi ankalemekeza anabweretsa malekezero awiri a vakuyumu losindikizidwa chubu, usavutike mtima kumapeto kwa intercalated zakuthupi, ndi zofunika 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 Konzekerani expandable graphite. Chiwerengero cha zigawo za graphite yowonjezera yopangidwa ndi njira iyi ikhoza kuwongoleredwa, koma mtengo wake wopanga ndi wokwera;
4. Njira yophatikizira mankhwala imapangitsa graphite yowonjezereka.
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 akukonzekera ndi awa: pa kutentha koyenera, yankho la hydrogen peroxide, flake flake graphite ndi sulfuric acid yamitundu yosiyanasiyana amachitidwa kwa nthawi inayake pansi pa kugwedezeka kosalekeza ndi njira zosiyanasiyana zowonjezeretsa, kenako kutsukidwa 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.