Bayan graphite mai faɗaɗa ana bi da shi nan take a babban zafin jiki, sikelin ya zama kamar tsutsa, kuma ƙarar na iya faɗaɗa sau 100-400. Wannan faɗaɗɗen graphite har yanzu yana kula da kaddarorin graphite na halitta, yana da fa'ida mai kyau, sako-sako ne kuma mara ƙarfi, kuma yana da juriya ga zafin jiki ƙarƙashin yanayin shingen oxygen. Wide kewayon, na iya zama tsakanin -200 ~ 3000 ℃, sinadaran Properties ne barga a karkashin high zafin jiki, high matsa lamba ko radiation yanayi, a cikin tsauri da kuma a tsaye sealing na man fetur, sinadaran, lantarki, jirgin sama, mota, jirgin ruwa da kuma kayan aiki masana'antu Akwai wani fadi da kewayon aikace-aikace. Editocin Furuit Graphite masu zuwa za su ɗauke ku don fahimtar hanyoyin samarwa gama gari na graphite mai faɗaɗawa:
1. Ultrasonic hadawan abu da iskar shaka hanya don yin expandable graphite.
A kan aiwatar da shirye-shiryen fadada graphite, ultrasonic vibration da aka yi a kan anodized electrolyte, da kuma lokacin ultrasonic vibration daidai da na anodization. Tun da vibration na electrolyte ta ultrasonic kalaman yana da amfani ga polarization na cathode da anode, da sauri na anodic hadawan abu da iskar shaka yana kara da kuma rage iskar shaka lokaci;
2. Hanyar gishiri mai narke yana yin graphite mai faɗaɗawa.
Mix abubuwa da yawa tare da graphite da zafi don ƙirƙirar graphite mai faɗaɗa;
3. Ana amfani da hanyar watsa gas-lokaci don yin graphite mai faɗaɗawa.
A graphite da intercalated abu bi da bi ana kawo su zuwa ga biyu iyakar wani injin shãfe haske bututu, mai tsanani a karshen intercalated abu, da kuma zama dole matsa lamba da bambanci da ake samu ta hanyar zafin jiki bambanci tsakanin biyu iyakar, sabõda haka, intercalated abu. shigar flake graphite Layer a cikin jihar kananan kwayoyin, game da shi Shirya expandable graphite. Ana iya sarrafa adadin yadudduka na graphite mai faɗaɗawa da aka samar ta wannan hanyar, amma farashin samarwa yana da yawa;
4. Hanyar haɗin gwiwar sinadarai tana yin graphite mai faɗaɗawa.
Na farko albarkatun kasa amfani da shiri ne high carbon flake graphite, da sauran sinadaran reagents kamar mayar da hankali sulfuric acid (sama da 98%), hydrogen peroxide (sama da 28%), potassium permanganate, da dai sauransu su ne duk masana'antu sa reagents. Babban matakan shirye-shiryen sune kamar haka: a yanayin da ya dace, maganin hydrogen peroxide, graphite flake na halitta da sulfuric acid da aka tattara na ma'auni daban-daban ana amsawa na ɗan lokaci a ƙarƙashin motsawa akai-akai tare da hanyoyin ƙari daban-daban, sannan a wanke da ruwa zuwa tsaka tsaki, da centrifuged, Bayan bushewa, bushewar bushewa a 60 ° C;
5. Electrochemical samar da expandable graphite.
Ana kula da foda na graphite a cikin mai ƙarfi acid electrolyte don yin graphite mai faɗaɗawa, hydrolyzed, wankewa da bushewa. A matsayin acid mai ƙarfi, sulfuric acid ko nitric acid ana amfani da su. graphite mai faɗaɗawa da aka samu ta wannan hanyar yana da ƙarancin abun ciki na sulfur.
Lokacin aikawa: Mayu-27-2022