Mushure mokunge girafu rinowedzera rinorapwa pakarepo pakupisa kwepamusoro, chiyero chinova sehonye, uye vhoriyamu inogona kuwedzera 100-400 nguva. Iyi yakawedzerwa graphite ichiri kuchengetedza zvimiro zvechisikigo graphite, ine yakanaka yekuwedzera, yakasununguka uye ine porous, uye inoshingirira kune tembiricha pasi peokisijeni barriers mamiriro. Yakakura siyana, inogona kuva pakati -200 ~ 3000 ℃, makemikari zvivakwa zvakagadzikana pasi pekushisa kwepamusoro, kudzvanywa kwepamusoro kana nemwaranzi mamiriro, mune inosimba uye static kuiswa chisimbiso kwepetroleum, kemikari, magetsi, ndege, mota, ngarava uye maindasitiri emidziyo. zvakasiyana-siyana zvekushandisa. Vanotevera vapepeti veFuruit Graphite vanokutora kuti unzwisise nzira dzakajairika dzekugadzira dzekuwedzera graphite:
1. Ultrasonic oxidation nzira yekuita expandable graphite.
Mukuita kugadzirira kuwedzera graphite, ultrasonic vibration inoitwa pane anodized electrolyte, uye nguva ye ultrasonic vibration yakafanana neye anodization. Sezvo kudengenyeka kwe electrolyte ne ultrasonic wave kunobatsira polarization ye cathode uye anode, kukurumidza kweanodic oxidation kunowedzera uye nguva ye oxidation inopfupiswa;
2. Nzira yemunyu yakanyungudutswa inoita kuti graphite iwedzere.
Sanganisa zvakati wandei negraphite uye kupisa kuti uite girafu rinowedzera;
3. Iyo gasi-phase diffusion nzira inoshandiswa kugadzira kuwedzera graphite.
Iyo graphite uye iyo yakabatanidzwa zvinhu zvakateerana zvinounzwa kumigumo miviri yevacuum yakavharwa chubhu, inopisa pamagumo echinhu chakabatanidzwa, uye iyo inodiwa yekumanikidza mutsauko inoumbwa nekusiyana kwekushisa pakati pemigumo miviri, kuitira kuti zvinhu zvakabatana. inopinda muflake graphite layer muchimiro chemamorekuru madiki, nekudaro Yakagadzirirwa kuwedzera girafu. Nhamba yezvikamu zve graphite inowedzerwa inogadzirwa nenzira iyi inogona kudzorwa, asi mutengo wayo wekugadzira wakakwira;
4. Iyo kemikari intercalation nzira inoita kuwedzera graphite.
Iyo yekutanga mbishi inoshandiswa pakugadzirira ndeyepamusoro kabhoni flake graphite, uye mamwe makemikari reagents akadai concentrated sulfuric asidhi (pamusoro 98%), hydrogen peroxide (pamusoro 28%), potassium permanganate, etc. ose maindasitiri giredhi reagents. Matanho akajairika ekugadzirira ndeaya anotevera: patembiricha yakakodzera, iyo hydrogen peroxide solution, natural flake graphite uye concentrated sulfuric acid yezviyero zvakasiyana inoitwa kweimwe nguva yenguva pasi pekugara ichibvongodzwa nemaitiro ekuwedzera akasiyana, yozoshambidzwa nemvura kusvika. kusarerekera, uye centrifuged, Mushure kushaya mvura mumuviri, vacuum kuomeswa pa 60 °C;
5. Electrochemical production of expandable graphite.
Graphite poda inobatwa mune yakasimba asidhi electrolyte kuti iwedzere girafu, hydrolyzed, yakashambwa uye yakaomeswa. Seasidhi yakasimba, sulfuric acid kana nitric acid inonyanya kushandiswa. Iyo inowedzera girafu inowanikwa nenzira iyi ine yakaderera sarufa yemukati.
Nguva yekutumira: May-27-2022