Yuav Ua Li Cas Xaiv Ntawm Carbon Nanotube Powder thiab Paste?

Tshooj 1: Ib qho lus nug ntau ntxiv -Cov lus nug xaiv

Hauv kev lag luam roj teeb lithium, kev sib tham zoo li no feem ntau hnov ​​​​ntawm cov engineers:

"Koj lub tuam txhab puas siv carbon nanotube hmoov lossis muab tshuaj txhuam?"

"Powder yog pheej yig dua, tab sis dispersion yog teeb meem heev. Peb tau sim ob peb zaug thiab tseem tsis tuaj yeem ua tau zoo."

"Peb ib txwm siv paste. Nws txuag teeb meem, tab sis tus nqi yog qhov tseeb dua me ntsis ..."

Qhov no tsis yog ib qho tshwm sim cais. Kev xaiv ntawm CNT hmoov thiab muab tshuaj txhuam yog yuav luag thawj qhov kev txiav txim siab uas txhua lub lag luam qhia CNT cov khoom siv ntxiv yuav tsum ntsib. Xaiv kom raug, thiab koj tau txais ob zaug qhov tshwm sim nrog ib nrab ntawm kev siv zog; xaiv tsis raug, thiab tej zaum koj yuav tsis tuaj yeem tau txais cov txheej txheem debugging ua tiav txawm tias tom qab ob peb lub hlis.

Niaj hnub no, cia peb tham txog qhov "kev nkag- theem" ​​tab sis qhov tseem ceeb ntau yam - lo lus nug xaiv, suav nrog tus nqi, txheej txheem, cov xwm txheej siv tau, thiab cov laj thawj xaiv rau ob hom khoom ntawm CNT.

Tshooj 2: Ua ntej, nkag siab: Dab tsi yog qhov txawv ntawm hmoov thiab muab tshuaj txhuam?

2.1 Daim Ntawv Sib Txawv: Los ntawm "Nanometer Noodles" mus rau "Npaj Khoom Noj"

CNT hmoov yog thawj daim ntawv tom qab CNT synthesis. Nyob rau hauv lub scanning electron microscope, nws zoo nkaus li entangled, agglomerated "noodle clusters." Txoj kab uas hla ntawm ib qho -walled CNT hmoov tsuas yog 1-2 nanometers, thiab cov hlab ntsa ntau yog 2-50 nanometers. Txawm li cas los xij, vim muaj zog van der Waals tsis tshua muaj zog, lawv nruj nreem ua ke, tsim agglomerates ntawm kaum lossis ntau pua micrometers.

CNT conductive paste yog cov khoom ua kua ua los ntawm kev sib xyaw CNT hmoov nrog cov kuab tshuaj (feem ntau NMP lossis dej) thiab cov khoom tawg, ua raws li cov txheej txheem xws li sib tsoo thiab tawg. Figuratively hais lus, hmoov yog "raws li cov khoom xyaw," thiab muab tshuaj txhuam yog "npaj zaub mov" - tus qub xav kom koj ua nws tus kheej, thaum tom kawg yog npaj siv txoj cai tawm ntawm pob.

Cov ntaub ntawv tseem ceeb:1 tuj ntawm CNT hmoov tuaj yeem tsim kwv yees li 15 tons ntawm cov khoom siv tshuaj (xws li 4% -6% cov ntsiab lus). Qhov kev sib raug zoo hloov dua siab tshiab no ncaj qha txiav txim siab tus nqi sib piv ntawm cov hmoov thiab muab tshuaj txhuam.

2.2 Kev Ua Tau Zoo: Tsis muaj teeb meem npaum li cas cov hmoov zoo, yog tias nws tsis tuaj yeem tawg, Nws tseem yog "khoom siv pov tseg"

Ntau tus neeg muaj kev xav tsis zoo: qhov siab dua qhov purity ntawm cov hmoov, qhov ua tau zoo ntawm kev muab tshuaj txhuam. Cov logic no muaj tseeb hauv thaj chaw ntawm cov ntaub ntawv ib txwm muaj, tab sis nws tsis siv ntawm no nrog CNTs.

Txawm hais tias qhov kev ua tau zoo ntawm CNT hmoov zoo npaum li cas, yog tias nws tsis zoo dispersed thiab cov agglomerates tsis tuaj yeem tawg, lawv yuav tsim cov khoom loj hauv cov muab tshuaj txhuam, ua rau pom kev thaiv, txheej hmoov txheej, thiab kev ua haujlwm tsis ua haujlwm. Dispersion ≈ qhov tseeb muab tshuaj ua haujlwm - qhov no yog qhov kev nkag siab tseem ceeb ntawm CNT kev lag luam. Qhov no kuj yog vim li cas cov tuam txhab lag luam tau nqis peev ntau rau hauv kev tshawb fawb thiab kev tsim cov tshuab paste dispersion.

Tshooj 3: Tus nqi sib piv: Tus nqi twg yog tus nqi ntau dua -Cov txiaj ntsig zoo?

3.1 Tus Nqi Ncaj Ncees: Hmoov yog pheej yig dua, tab sis koj yuav tsum tau them nyiaj rau "tus nqi ua haujlwm"

Qhov no yog qhov kev paub tiag tiag rau ntau tus neeg ua haujlwm: lawv yuav cov hmoov pheej yig, tab sis tom qab ntawd nqis peev ntau pua txhiab hauv cov khoom siv dispersion, siv peb lub hlis rau cov txheej txheem debugging, thiab tseem tsis tuaj yeem ua tiav cov txiaj ntsig siab - tus nqi tag nrho yuav siab dua.

Siv 1 tuj hmoov ua piv txwv:

Hmoov nqi:Kwv yees li 60,000-500,000 RMB/tuj (nyob ntawm seb nws yog ib leeg-walled lossis multi-walled)

Paste uas tuaj yeem tsim tau:Kwv yees li 15 tons

Paste nqe:Kwv yees li 5,000-30,000 RMB / ton

Saib ntawm tus nqi tsev xwb, hmoov zoo li pheej yig dua li muab tshuaj txhuam. Txawm li cas los xij, hmoov xav kom cov neeg siv khoom faib tawm lawv tus kheej, uas txhais tau tias kev nqis peev ntxiv:

Cov khoom siv dispersion:Bead mills, siab -dispersers ceev, cov khoom siv ultrasonic, thiab lwm yam, xws li ntau pua txhiab mus rau lab RMB.

Kev tsim kho txheej txheem:Dispersant xaiv, txheej txheem parameter optimization, uas yuav siv sij hawm ob peb lub hlis.

Zoo txaus ntshai:Dispersion zoo ib yam yog ib qho nyuaj rau lav, nrog loj batch -rau -batch fluctuations.

3.2 Kev Them Nqi: Muab tshuaj txhuam yuav tsis tas yuav kim dua

Rau feem ntau ntawm tes manufacturers, xaiv muab tshuaj txhuam yuav ua rau tus nqi qis dua:

Cov ntsiab lus tseem ceeb:Yog tias lub lag luam loj - nplai, muaj kev sib cais, thiab muaj kev noj ntau, hmoov yog tus nqi ntau dua - zoo; yog tias lub lag luam yog qhov nruab nrab - nplai, tsis muaj kev cuam tshuam, thiab nrhiav kev ruaj ntseg, muab tshuaj yog txhawj xeeb dua - dawb.

Tshooj 4: Cov txheej txheem sib txawv: Cov Tswv Yim Qhia Rau Ob Txoj Kev

4.1 Txoj Kev Hmoov: Ua Koj Tus Kheej

Yog tias koj xaiv hmoov, koj yuav tsum ua kom tiav cov txheej txheem dispersion koj tus kheej. CNT dispersion muaj peb yam tseem ceeb: dispersion nruab nrab, dispersant, thiab dispersion khoom.

① Dispersion Medium Xaiv

Dispersion media muab faib ua peb pawg raws li viscosity:

Tsawg viscosity (dej, cawv, NMP thiab lwm yam organic solvents):Haum rau ultrasonic probes, hlaws mills, pob zeb.

Nruab nrab viscosity (kua epoxy resin, kua silicone roj hmab, thiab lwm yam.):Haum rau peb - yob mills.

High viscosity (molten yas, roj hmab, thiab lwm yam):Haum rau ntxaib - ntsia hlau extruders, sab hauv mixers.

Kev ceeb toom tshwj xeeb:Ultrasonic tu da dej muaj cov nyhuv dispersion tsis zoo thiab tsis pom zoo siv!

② Kev xaiv Dispersant

Tsis muaj universal dispersant. Kev xaiv ntawm dispersant yog ze ze rau cov qauv, polarity, thiab solubility tsis nyob rau hauv nruab nrab dispersion. Raws li sab nraud txoj kab uas hla ntawm CNT txo qis thiab thaj chaw tshwj xeeb nce ntxiv, tus nqi ntawm dispersant yuav tsum tau nce ntxiv.

Pom zoo npaum li cas (raws li CNT pawg):

Multi-walled tubes (TNM8 hom):Dispersant ntau npaum li cas 20% -30%

Multi-walled tubes (TNM1 hom):Dispersant ntau npaum li cas 60% -80%

Tib -walled tubes:Dispersant ntau npaum li cas 250% -500%

③ Dispersion txheej txheem tseem ceeb

Npaj ib 2% CNT aqueous dispersion ua piv txwv:

Dissolve lub dispersant nyob rau hauv dej deionized (kub yuav tsum tsis txhob ntau tshaj 50 degree).

Ntxiv CNTs thiab do kom ntub tag nrho.

Kev kho ultrasonic (hwj chim 50%, ultrasound 3s / ncua 3s), manually do txhua 10 feeb.

Txiav txim siab qhov kawg: poob rau hauv dej, yog tias nws diffuses zoo ib yam li tus cwj mem, tsis muaj qhov pom.

Yeem: Centrifuge tshem tawm ib qho me me ntawm cov khoom sib sau ua ke (1000-3000 r / min, 10-30 min). Cov dispersion tuaj yeem ruaj khov rau ntau tshaj li ib nrab xyoo.

4.2 Paste Route: Npaj siv txoj cai tawm ntawm pob

Paste tau ua tiav tag nrho cov kauj ruam saum toj no. Cov neeg siv khoom tsuas yog xav tau:

Paub meej tias hom paste (NMP-raws li lossis dej-raws li).

Xyuas seb cov ntsiab lus thiab viscosity ua tau raws li qhov xav tau.

Ncaj nraim ntxiv nws mus rau kev sib xyaw ua ke raws li cov qauv.

Noj Shandong Tanfeng cov tshuaj nplaum ua piv txwv, nws cov khoom siv cov cuab yeej dispersion tshwj xeeb uas tuaj yeem ua rau CNTs ncab thiab qhib rau hauv cov tshuaj thiab tswj kom ruaj khov dispersion rau ntau tshaj 6 lub hlis.

Tshooj 5: Cov lus pom zoo xaiv rau cov xwm txheej sib txawv

5.1 Thaum twg xaiv hmoov?

Kev lag luam loj loj, kev siv loj:Kev noj txhua xyoo ntawm kaum tawm tons lossis ntau dua; dispersion cov cuab yeej siv peev yuav raug txiav tawm.

Nws muaj kev paub paub dispersion:Twb muaj CNT dispersion txheej txheem thiab pab neeg.

Tus nqi ntau heev -sensitive:Muaj peev xwm thiab txaus siab los txo cov nqi los ntawm tus kheej -dispersion.

Xav tau customized dispersion daws:Tshwj xeeb hnyav tshuab los yog tshwj xeeb daim ntawv thov scenarios.

5.2 Thaum twg xaiv Paste?

Cov me me thiab nruab nrab- nplai cell factories:Tsis muaj cov khoom siv dispersion lossis kev paub dhau los.

Ua raws cov lus qhia ceev ceev:Tsis xav siv lub hlis ntawm cov txheej txheem debugging.

Cov kev xav tau siab rau batch stability:Paste sib xws yog tswj tau zoo dua.

New project trial production:Ua ntej tshawb xyuas cov txiaj ntsig sai sai, tom qab ntawd txiav txim siab ntev - cov kev daws teeb meem.

5.3 Kev Xaiv Kev Txiav Txim Siab Cov Lus Qhia

Tshooj 6: Qhov zoo ntawm Cov Chaw Tsim Khoom: Ua kom tiav cov txheej txheem los ntawm hmoov rau muab tshuaj txhuam

Raws li cov chaw tsim khoom CNT, peb tus nqi tseem ceeb tsis yog "muag tsuas yog hmoov" lossis "muag tsuas yog muab tshuaj txhuam," tab sis muab cov khoom tiav matrix los ntawm cov hmoov mus rau paste, tso cai rau cov neeg siv khoom hloov pauv raws li lawv tus kheej xav tau.

Ua ntej, cov khoom siv hmoov: uniform raj txoj kab uas hla, ruaj purity.Peb siv cov tshuaj vapor deposition (CVD) txoj kev los tsim CNTs, tswj lub raj txoj kab uas hla, nam piv, thiab defect ceev ntawm qhov chaw. Peb cov khoom lag luam npog tag nrho ntawm ib qho - phab ntsa phab ntsa, ob peb- cov phab ntsa phab ntsa, thiab ntau- cov phab ntsa phab ntsa, thiab lub raj txoj kab uas hla thiab ntev tuaj yeem kho raws li cov neeg siv khoom xav tau.

Thib ob, muab tshuaj txhuam cov khoom: tus kheej -tsim dispersants, kev ua tau zoo tshaj rau kev imports.Peb ib leeg -phab ntsa phab ntsa muab tshuaj txhuam siv tus kheej-tsim dispersants, outperforming imported khoom nyob rau hauv ntsuas xws li viscosity thiab cov ntsiab lus. Ob qhov dej-raws li pastes thiab roj-raws li pastes muaj, hloov mus rau cov txheej txheem sib txawv ntawm cov neeg siv khoom.

Thib peb, tag nrho cov kev lag luam saw layout: ib qho - nres cov khoom siv los ntawm cov catalyst rau paste.Peb muaj tag nrho cov kev lag luam saw technology los ntawm catalyst npaj, CNT synthesis, thiab purification rau paste dispersion, nrog controllable zoo thiab controllable nqi.

Plaub, kev pabcuam customized: kho cov khoom tsis raws li cov neeg siv khoom xav tau.Txawm hais tias nws yog lub raj txoj kab uas hla thiab ntev ntawm cov hmoov, los yog cov ntsiab lus ntawm cov khoom, viscosity, thiab hnyav hom muab tshuaj txhuam, peb tuaj yeem ua customized ntau lawm raws li tus neeg siv khoom cov txheej txheem tshwj xeeb.

Tshooj 7: Cov lus qhia tswv yim rau cov neeg siv

Ua ntej, nug koj tus kheej peb lo lus nug:Koj noj ntau npaum li cas? Koj puas muaj cov khoom siv dispersion? Koj pab neeg puas muaj kev cuam tshuam? Cov lus teb txiav txim siab seb yuav xaiv hmoov los yog muab tshuaj txhuam.

Kev xeem yuav tsum yog "simulated":Yog tias koj npaj yuav siv hmoov, siv hmoov rau kev kuaj; yog tias koj npaj yuav siv paste, siv paste rau kev sim. Tsis txhob siv hmoov rau kev sim thiab txiav txim siab yuav muab tshuaj txhuam - lub xeev dispersion ntawm ob qhov sib txawv.

Them mloog mus rau batch sib xws:Txawm hais tias koj xaiv hmoov los yog muab tshuaj txhuam, thov cov ntaub ntawv xeem rau ntau pawg. Lub batch stability ntawm CNT cov khoom ncaj qha txiav txim siab koj cov yield.

Xam cov nqi sib tw, tsis txhob saib tsuas yog ntawm tus nqi tsev:Tus nqi ntawm cov hmoov yog qis dua, tab sis thaum koj ntxiv cov khoom siv, kev ua haujlwm, thiab cov txiaj ntsig poob, cov nqi sib tw yuav siab dua.

Sim me me ua ntej, ces txiav txim siab:Yog tias koj tsis paub meej tias yuav xaiv qhov twg, koj tuaj yeem yuav cov khoom me me ntawm ob daim ntawv rau kev sib piv, thiab cia cov ntaub ntawv hais rau nws tus kheej.

Tsis muaj cov lus teb tus qauv rau kev xaiv ntawm CNT hmoov thiab muab tshuaj txhuam, tsuas yog cov lus teb uas haum rau koj. Qhov tseem ceeb yog kom nkag siab meej txog koj tus kheej cov kev xav tau, kev muaj peev xwm, thiab kev pheej hmoo siab, thiab txiav txim siab muaj txiaj ntsig.

Yog tias koj muaj teeb meem nrog kev xaiv ntawm CNT hmoov thiab muab tshuaj txhuam, thov koj xav tiv tauj peb. Raws li cov kws tshaj lij kev tsim khoom, Shandong Tanfeng tau npaj ua haujlwm nrog koj los nrhiav kev daws teeb meem zoo rau koj cov khoom.