Kev lag luam ntawv yeej ib txwm nrhiav txoj hauv kev los txhim kho qhov zoo ntawm daim ntawv thiab txo cov nqi tsim khoom. Silicon dioxide (silicon dioxide/dawb carbon dub/silica) tau dhau los ua ib qho khoom siv tseem ceeb hauv kev ua ntawv vim nws cov qauv tshwj xeeb thiab cov khoom siv tshuaj lom neeg. Nws cov khoom me me nanoscale, nrog rau thaj chaw tshwj xeeb feem ntau tshaj 200 m²/g, cuam tshuam ntawm qib molecular nrog cov ntawv fibers, ua rau muaj kev txhim kho ntau yam. Nws tuaj yeem siv ua cov khoom sau, cov xim pleev xim, thiab cov neeg sawv cev ntsuas hauv cov txheej txheem ua ntawv, ua kom zoo dua daim ntawv lub zog, kev du, thiab kev luam tawm. Txawm hais tias nws yog daim ntawv coated zoo rau kev luam ntawv lossis daim ntawv mos mos rau kev siv txhua hnub, cov pa roj carbon dub dawb tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo dua cov khoom.

Peb cov pa roj carbon dub dawb uas tau npaj tseg rau daim ntawv coated tau dhau los ntawm cov txheej txheem hydrothermal synthesis tshwj xeeb, kom ntseeg tau tias qhov nruab nrab ntawm cov khoom me me ntawm 20-30nm. Qhov kev tsim kho precision no txo ​​qhov roughness ntawm qhov txheej kom qis dua 0.5μm, ua rau daim ntawv coated muaj qhov chaw du zoo li daim iav. Thaum lub sijhawm luam ntawv, cov kua mem tuaj yeem nqus tau sib npaug, zam cov teeb meem xws li cov kua mem tsis meej thiab xim tsis sib xws. Ib lub tuam txhab tsim ntawv luam ntawv ua lag luam hauv Nyiv Pooj tau ua qhov kev sim rau rau lub hlis, ntxiv 10% ntawm peb cov pa roj carbon dub dawb rau lawv cov mis txheej ntawv coated. Cov txiaj ntsig tau zoo kawg nkaus: kev nce 25% ntawm daim ntawv qhov ci ntsa iab, kev txhim kho 15% hauv kev txhais lus luam ntawv, thiab kev nce 20% ntawm qhov txheej qhov ziab ceev, txhim kho kev ua haujlwm ntau lawm. Ntxiv mus, daim ntawv qhov kev tiv thaiv rau kev puas tsuaj tau nce 18%, ntev nws lub neej txee thiab txhim kho nws qhov kev sib tw ua lag luam.

Rau cov ntawv so tes, qhov mos thiab lub zog yog ob qho cim tseem ceeb uas cov neeg siv khoom txhawj xeeb txog. Cov ntawv so tes ib txwm muaj teeb meem ntawm qhov tsis muaj zog - yooj yim tawg thaum ntub. Ntxiv cov pa roj carbon dawb kom txaus rau hauv cov ntawv so tes tuaj yeem daws qhov teeb meem no. Cov pa roj carbon dawb thaj chaw loj ntawm cov nplaim tshwj xeeb tso cai rau nws los tsim cov hydrogen bonds nrog cellulose fibers hauv cov pulp, ua kom muaj zog sib txuas ntawm cov fibers. Thaum ntxiv cov nyiaj yog 1-2%, lub zog tensile qhuav ntawm cov ntawv so tes tuaj yeem nce ntxiv 10%, thiab lub zog tensile ntub tuaj yeem nce ntxiv 15%, thaum qhov mos ntawm cov ntawv so tes tsis cuam tshuam. Qhov no yog vim tias cov khoom me me ntawm cov pa roj carbon dawb tuaj yeem sau cov qhov sib txawv ntawm cov fibers yam tsis tsim cov qauv tawv, ua kom cov ntawv so tes tseem mos thiab xis nyob rau siv.

Ib lub hom ntawv so tes hauv Tebchaws Europe tau muab peb cov pa roj carbon dub dawb rau hauv lawv cov kab ntau lawm thiab tau ua qhov kev sim dig muag rau cov neeg siv khoom. Cov txiaj ntsig qhia tau tias 82% ntawm cov neeg siv khoom nyiam cov khoom zoo dua, hais txog nws lub zog zoo dua thiab mos mos tsis hloov pauv. Yog li ntawd, lawv cov khoom tau txais kev qhuas siab los ntawm cov neeg siv khoom, thiab kev muag khoom tau nce 30% hauv ib nrab xyoo. Kev tshuaj xyuas ntxiv qhia tau tias kev ntxiv cov pa roj carbon dub dawb kuj tau txhim kho daim ntawv tiv thaiv kev daj, tswj nws qhov dawb ntev dua.

Hauv kev tsim cov ntawv tshwj xeeb xws li daim ntawv lim dej thiab daim ntawv rwb thaiv hluav taws xob, cov khoom tshwj xeeb ntawm cov pa roj carbon dawb kuj siv tau tag nrho. Daim ntawv lim dej rau kev kho dej yuav tsum muaj qhov porosity zoo thiab muaj peev xwm adsorption. Ntxiv fumed silica nrog cov khoom me me ntawm 5-10nm rau ntawm daim ntawv lim dej tuaj yeem ua rau daim ntawv porosity nce 20%. Cov khoom me me silica muaj peev xwm adsorption zoo rau cov khoom tsis huv xws li cov hlau hnyav ions thiab cov organic hauv dej, ua rau daim ntawv lim dej muaj kev lim dej zoo dua, thiab qhov tseeb ntawm kev lim dej tuaj yeem ncav cuag 0.1μm.

Hauv ib qho project sim nrog ib lub tuam txhab lim dej, peb cov fumed silica tau siv rau hauv kev tsim cov ntawv lim. Cov txiaj ntsig tau qhia tias qhov kev tshem tawm ntawm cov hlau hnyav ions nce ntxiv ntawm 75% mus rau 92%, thiab qhov kev tshem tawm ntawm cov organic pollutants nce ntxiv 25%. Cov dej kho tau ua raws li cov qauv dej haus thoob ntiaj teb nruj tshaj plaws.

Daim ntawv rwb thaiv hluav taws xob xav tau lub zog dielectric siab thiab tiv taus cua sov. Ntxiv cov pa roj carbon dub dawb uas muaj cov khoom dawb huv (SiO₂ cov ntsiab lus ≥99.9%) rau cov ntawv rwb thaiv tsev tuaj yeem txhim kho lub zog dielectric ntawm daim ntawv los ntawm 15kV / hli mus rau 25kV / hli thiab nce qib tiv taus cua sov los ntawm Chav Kawm A (105 ° C) mus rau Chav Kawm B (130 ° C), ua rau nws tsim nyog siv rau hauv cov khoom siv hluav taws xob siab.

Peb lub tuam txhab tau koom tes nrog lub tuam txhab tsim cov transformer los sim kev ua haujlwm ntawm daim ntawv rwb thaiv tsev nrog peb cov pa roj carbon dub dawb. Tom qab 1000 teev ntawm kev ua haujlwm tas mus li ntawm 120 ° C, daim ntawv rwb thaiv tsev tseem muaj kev ua haujlwm rwb thaiv tsev zoo heev, tsis muaj kev puas tsuaj loj hauv lub zog dielectric. Qhov kev tshawb pom no tau tso cai rau lub tuam txhab tsim cov tiam tshiab ntawm cov transformers ua haujlwm siab, txo qhov kev poob hluav taws xob los ntawm 12%.

Peb lub tuam txhab muab ntau yam khoom siv dub dawb rau kev lag luam ntawv, suav nrog cov qib uas tawg tau zoo, cov qib ntshiab, thiab cov qib zoo heev. Txhua qib tau raug tsim kho kom zoo rau cov txheej txheem ua ntawv—piv txwv li, peb cov xim dub dawb uas yog daim ntawv coated muaj qhov nqus roj tsawg (≤150ml/100g), uas tuaj yeem txo qhov ntau ntawm cov binder siv rau hauv cov txheej, txo cov nqi tsim khoom; peb cov xim dub dawb uas yog daim ntawv so ntswg muaj qhov yaj dej zoo, ua kom ntseeg tau tias muaj kev tawg sib npaug hauv cov pulp. Tag nrho peb cov khoom ua tau raws li cov kev cai tiv thaiv ib puag ncig ntawm kev lag luam ntawv, tsis muaj cov hlau hnyav lossis cov tshuaj lom neeg, thiab tuaj yeem lwj tau hauv ib puag ncig ntuj, txo cov pa phem ib puag ncig.

Hais txog kev xa khoom, peb tuaj yeem muab cov ntim khoom loj (500kg/hnab) thiab cov ntim khoom me me (25kg/hnab) raws li cov neeg siv khoom xav tau, thiab koom tes nrog cov tuam txhab xa khoom tshaj lij kom ntseeg tau tias cov khoom xa tuaj rau lub Hoobkas ntawm cov neeg siv khoom raws sijhawm thiab muaj kev nyab xeeb. Peb pab neeg tom qab muag khoom muaj 24/7 los daws txhua yam teeb meem ntsig txog cov khoom, muab kev paub tsis muaj kev txhawj xeeb rau cov neeg siv khoom.