Tom qab cov graphite nthuav dav tau kho tam sim ntawd ntawm qhov kub siab, qhov nplai ua zoo li kab, thiab qhov ntim tuaj yeem nthuav dav 100-400 zaug. Cov graphite nthuav dav no tseem khaws cov khoom ntawm cov graphite ntuj, muaj kev nthuav dav zoo, xoob thiab porous, thiab tiv taus qhov kub thiab txias hauv qab cov pa oxygen barrier. Ntau yam, tuaj yeem nyob nruab nrab ntawm -200 ~ 3000 ℃, cov khoom tshuaj lom neeg ruaj khov hauv qab qhov kub thiab txias, siab siab lossis hluav taws xob, hauv kev sib khi dynamic thiab static ntawm roj av, tshuaj lom neeg, hluav taws xob, aviation, tsheb, nkoj thiab cov cuab yeej siv Muaj ntau yam kev siv. Cov neeg kho hauv qab no ntawm Furuit Graphite yuav coj koj mus nkag siab txog cov txheej txheem tsim khoom ntawm cov graphite nthuav dav:
1. Txoj kev oxidation ultrasonic los ua graphite nthuav dav.
Thaum lub sijhawm npaj cov graphite uas nthuav dav tau, kev co ultrasonic yog ua rau ntawm cov electrolyte anodized, thiab lub sijhawm ntawm kev co ultrasonic yog tib yam li ntawm anodization. Txij li thaum kev co ntawm cov electrolyte los ntawm cov nthwv dej ultrasonic yog qhov zoo rau kev polarization ntawm cathode thiab anode, qhov ceev ntawm anodic oxidation yog accelerated thiab lub sijhawm oxidation yog luv dua;
2. Txoj kev ntsev uas yaj ua rau graphite nthuav tau.
Sib tov ntau daim ntxig nrog graphite thiab cua sov kom ua tau graphite nthuav dav;
3. Txoj kev sib kis ntawm cov pa roj yog siv los ua cov graphite uas nthuav tau.
Cov graphite thiab cov khoom sib xyaw ua ke raug coj mus rau ob qho kawg ntawm lub raj kaw uas kaw, cua sov rau ntawm qhov kawg ntawm cov khoom sib xyaw, thiab qhov sib txawv ntawm qhov kub thiab txias ntawm ob qho kawg tsim qhov sib txawv ntawm qhov siab, yog li cov khoom sib xyaw nkag mus rau hauv cov txheej graphite flake hauv lub xeev me me, yog li npaj graphite nthuav dav. Tus naj npawb ntawm cov txheej ntawm graphite nthuav dav tsim los ntawm txoj kev no tuaj yeem tswj tau, tab sis nws cov nqi tsim khoom siab;
4. Txoj kev sib xyaw ua ke ntawm cov tshuaj ua rau cov graphite nthuav tau.
Cov khoom siv raw thawj zaug siv rau kev npaj yog cov pa roj carbon siab flake graphite, thiab lwm yam tshuaj reagents xws li concentrated sulfuric acid (saum toj no 98%), hydrogen peroxide (saum toj no 28%), potassium permanganate, thiab lwm yam yog txhua yam tshuaj reagents qib kev lag luam. Cov kauj ruam dav dav ntawm kev npaj yog raws li nram no: ntawm qhov kub thiab txias, cov tshuaj hydrogen peroxide, natural flake graphite thiab concentrated sulfuric acid ntawm ntau qhov sib txawv raug tshuaj rau ib lub sijhawm ntawm lub sijhawm nyob rau hauv kev sib xyaw tas li nrog cov txheej txheem ntxiv sib txawv, tom qab ntawd ntxuav nrog dej kom tsis muaj zog, thiab centrifuged, Tom qab dehydration, nqus tsev kom qhuav ntawm 60 ° C;
5. Kev tsim cov graphite uas nthuav tau los ntawm hluav taws xob.
Cov hmoov graphite raug kho hauv cov electrolyte uas muaj zog acid kom ua tau graphite nthuav dav, hydrolyzed, ntxuav thiab ziab. Raws li cov kua qaub muaj zog, feem ntau yog siv sulfuric acid lossis nitric acid. Cov graphite nthuav dav tau los ntawm txoj kev no muaj cov sulfur tsawg.
Lub sijhawm tshaj tawm: Tsib Hlis-27-2022