Expandable graphite yog tsim los ntawm ob txheej txheem

Expandable graphite yog tsim los ntawm ob txheej txheem: tshuaj thiab electrochemical. Ob txheej txheem sib txawv ntxiv rau cov txheej txheem oxidation, deacidification, dej ntxuav, lub cev qhuav dej, ziab thiab lwm yam txheej txheem yog tib yam. Qhov zoo ntawm cov khoom lag luam feem ntau ntawm cov tuam txhab siv tshuaj muaj peev xwm ncav cuag qhov ntsuas tau teev tseg hauv GB10688-89 "expandable graphite" tus qauv, thiab ua tau raws li cov khoom xav tau rau kev tsim cov ntawv graphite thiab cov qauv xa tawm.

Tab sis kev tsim cov khoom tshwj xeeb ntawm cov tsis muaj zog (≤10%), cov ntsiab lus tsis muaj leej faj (≤2%) ntawm cov khoom yog qhov nyuaj, cov txheej txheem ntau lawm tsis dhau. Txhim kho kev tswj xyuas, kawm cov txheej txheem intercalation ua tib zoo, paub txog kev sib raug zoo ntawm cov txheej txheem tsis ua haujlwm thiab kev ua haujlwm ntawm cov khoom, thiab ua kom ruaj khov zoo expandable graphite yog cov yuam sij los txhim kho qhov zoo ntawm cov khoom tom ntej. Qingdao Furuite Graphite cov ntsiab lus: electrochemical txoj kev uas tsis muaj lwm yam oxidants, lub ntuj flake graphite thiab auxiliary anode ua ke ua ib tug anode chamber soaked nyob rau hauv concentrated sulfuric acid electrolyte, los ntawm ncaj qha tam sim no los yog mem tes tam sim no, oxidation tom qab ib tug tej lub sij hawm coj tawm, tom qab ntxuav thiab ziab. yog expansible graphite. Cov yam ntxwv loj tshaj plaws ntawm txoj kev no yog tias cov tshuaj tiv thaiv qib ntawm graphite thiab qhov Performance index ntawm cov khoom tuaj yeem tswj tau los ntawm kev kho cov hluav taws xob tsis zoo thiab cov tshuaj tiv thaiv lub sijhawm, nrog rau cov pa phem me me, tus nqi qis, ruaj khov thiab kev ua haujlwm zoo. Nws yog ib qho tseem ceeb los daws qhov teeb meem sib xyaw, txhim kho kev ua haujlwm thiab txo cov kev siv hluav taws xob hauv cov txheej txheem intercalation.

Tom qab deacidification los ntawm ob txheej txheem saum toj no, qhov loj piv ntawm sulfuric acid wetting thiab adsorption ntawm graphite interlamellar tebchaw tseem yog li ntawm 1: 1, kev noj cov tshuaj intercalating yog loj, thiab kev siv dej ntxuav thiab dej phwj tuaj yog siab. Thiab feem ntau cov tuam ntxhab tsis tau daws qhov teeb meem ntawm kev kho dej khib nyiab, nyob rau hauv lub xeev ntawm tej yam ntuj tso paug, ib puag ncig muaj kuab paug, yuav txwv txoj kev loj hlob ntawm kev lag luam.