Ndezvipi zvinhu zvinoita kuti graphite iwedzere kana yadziiswa kuita graphite inowedzerwa?

Hunhu hwekuwedzera kwepepa regirafiti rinokurazvakasiyana nezvimwe zvinhu zvinopa simba. Kana ikapiswa kusvika pakupisa kwakati, girafiti inotambanudzwa inotanga kukura nekuda kwekuora kwemakomichi anonyudzwa mu interlayer lattice, iyo inonzi tembiricha yekutanga yekuwedzera. Inotambanudzwa zvizere pa1000 ℃ uye inosvika pahuwandu hwepamusoro. Vhoriyamu yekuwedzera inogona kusvika kanopfuura mazana maviri pane kukosha kwekutanga. Grafiti yakawedzerwa inonzi graphite yakawedzerwa kana girafiti, iyo inoshanduka kubva pachimiro chepakutanga cheflake kuenda kuchimiro chehonye ine density yakaderera, ichigadzira thermal insulation layer yakanaka kwazvo. Grafiti yakawedzerwa haisi chete sosi yekabhoni musystem yekuwedzera, asiwo inodzivirira. Inogona kubudiriradzivirira kupisaKana ichibvira moto, ine hunhu hwekupisa kushoma, kurasikirwa kudiki uye gasi diki remvura inoyerera.

Ndezvipi zvinhu zvinoita kuti graphite iwedzere kana yadziiswa kuita graphite inowedzerwa?

Hunhu hwegraphite yakawedzerwa

① Kuramba kumanikidzwa kwakasimba,kuchinjika, plasticity uye kuzvizora;

② Kuramba kwakasimba pakupisa kwakanyanya, kwakaderera,ngurauye mwaranzi;

③ Hunhu hwakasimba kwazvo hwekudengenyeka kwenyika;

④ Yakasimba zvikurukutenderera kwemhepo;

⑤Hunhu hwakasimba hwekudzivirira kukwegura uye hunodzivirira kukanganiswa.

⑥ Inogona kuramba kunyunguduka uye kupinda kwesimbi dzakasiyana-siyana;

⑦ Haina chepfu, haina kenza uye haikuvadzi nharaunda.

Nzira dzakasiyana-siyana dzekuvandudza graphite yakawedzerwa ndeidzi:

1. Graphite yakawedzerwa yezvinangwa zvakakosha

Ongororo dzinoratidza kuti honye dze graphite dzine basa rekukweva mafungu e electromagnetic. Graphite yakawedzerwa inofanira kusangana nezvinodiwa zvinotevera: (1) tembiricha yekutanga yekuwedzera yakaderera uye huwandu hukuru hwekuwedzera; (2) Hunhu hwemakemikari hwakagadzikana, hunochengetwa kwemakore mashanu, uye chiyero chekuwedzera hachiori; (3) Pamusoro pe graphite yakawedzerwa haina ngura uye haina ngura ku cartridge case.

2. Graphite yakawedzerwa granular

Graphite diki yakawedzerwa inoreva 300 mesh expandable graphite ine vhoriyamu yekuwedzera ye100ml / g. Chigadzirwa ichi chinonyanya kushandiswa kune chinodzivirira motomachira ekuputira, iyo iri kudiwa zvikuru.

3. Graphite yakawedzerwa ine tembiricha yepamusoro yekutanga yekuwedzera

Tembiricha yekutanga yekuwedzera kwegirafiti yakawedzerwa ine tembiricha yepamusoro yekutanga yekuwedzera i290-300 ℃, uye vhoriyamu yekuwedzera i ≥ 230ml / g. Rudzi urwu rwegirafiti yakawedzerwa runonyanya kushandiswa pakugadzira mapurasitiki einjiniya nerabha.

4. Graphite yakagadziriswa pamusoro

Kana graphite yakawedzerwa ikashandiswa sechinhu chinodzivirira moto, inosanganisira kuenderana pakati pegraphite nezvimwe zvikamu. Nekuda kwekuwedzera kwemineralization yepamusoro pegraphite, haina lipophilic kana hydrophilic. Saka, pamusoro pegraphite panofanira kuchinjwa kugadzirisa dambudziko rekuenderana pakati pegraphite nezvimwe zvikamu. Yakakurudzirwa kucheneswa pamusoro pegraphite, kureva kuti, kufukidza pamusoro pegraphite nefirimu chena yakasimba, inova dambudziko rakaoma kugadzirisa. Inosanganisira membrane chemistry kana surface chemistry. Laboratory inogona kukwanisa kudaro, uye kune matambudziko mukukura kwemaindasitiri. Rudzi urwu rwegraphite chena inogona kuwedzerwa inonyanya kushandiswa seflame retardant coating.

5. Tembiricha yekutanga yakaderera uye tembiricha yakaderera yakawedzera graphite

Rudzi urwu rwegirafiti yakawedzerwa inotanga kukura pa80-150 ℃, uye huwandu hwekuwedzera hunosvika 250ml / g pa600 ℃. Matambudziko ekugadzira girafiti inowedzerwa inosangana nemamiriro aya ndeaya: (1) kusarudza musanganiswa wakakodzera; (2) Kudzora uye kugona mamiriro ekuomesa; (3) Kuziva hunyoro; (4) Kugadzirisa matambudziko ekuchengetedza nharaunda.