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. Yakasiyana-siyana, inogona kuva pakati -200 ~ 3000 ℃, makemikari zvivakwa zvakagadzikana pasi pekushisa kwepamusoro, kudzvanywa kwepamusoro kana nemwaranzi mamiriro, mune inoshanduka uye static kuiswa chisimbiso petroleum, kemikari, magetsi, ndege, mota, ngarava uye maindasitiri emidziyo Kune huwandu hwakawanda hwekushandisa. 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 eiyo intercalated zvinhu, uye inodiwa yekuita kudzvanywa musiyano inoumbwa nemusiyano wetembiricha pakati pemigumo miviri, kuitira kuti iyo yakabatana zvinhu ipinde muflake graphite layer munzvimbo yemamorekuru 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 akazara ekugadzirira ndeaya anotevera: pakupisa kwakakodzera, hydrogen peroxide solution, natural flake graphite uye concentrated sulfuric acid yezviyero zvakasiyana-siyana zvinogadziriswa kweimwe nguva yenguva pasi pekukurudzira nemaitiro akasiyana-siyana ekuwedzera, zvino yakashambidzwa nemvura kusvika kune kusarerekera, uye centrifuged, Mushure mekupera mvura, vacuum drying pa60 ° 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