High Aspect Ratio MWCNT hmoov
Feem ntau MWCNT hmoov specs nres ntawm "inch 10-30 nm, ntev 5-20 µm" thiab hu nws ib hnub. Tab sis tus neeg twg uas tau khiav qhov kev ntsuam xyuas percolation paub ob tus lej ntawm cov ntaub ntawv tsis zoo ib yam li cov av hauv koj lub tov khoom. Yog hais tias cov raj raug txiav thaum lub sij hawm sau, tshaj -purified rau hauv stubs, los yog re- entangled rau hauv haystacks, koj "5-20 µm" hmoov coj zoo li 2 µm hmoov-thiab koj mus txog ob npaug ntawm cov khoom tsuas yog ntaus 10⁶ Ω / sq.
NtawmShandong Tanfeng, siab nam piv MWCNT hmoov yog lub reactor - thiab - txiav txim siab sau qoob loo, tsis yog daim ntawv lo. Peb cog cov raj ntawm ntab-catalyst CVD nrog ncua sij hawm nyob, tom qab ntawd rov qab lawv yam tsis muaj qhov siab -shear milling uas ntsiag to truncates ntev. Qhov tshwm sim:OD 10–30 nm, ntev 15–50 µm, nam piv 1,000–3,000+, xa raws li ib tug fluffy hmoov uas tseem pours es tsis txhob clumping.
Vim li cas Aspect Ratio txiav txim siab koj cov qauv
Aspect ratio (L / D) yog ib qho loj tshaj qib ntawm percolation. Classic pas nrig- txoj kev xav percolation muab qhov pib kwv yees ntawm φc ≈ 0.7/(L/D)-yog li txav los ntawm L/D 200 mus rau L/D 2,000 poob qhov kev coj ua pib li ntawm 10 ×. Hauv cov ntsiab lus yooj yooj yim: lub raj ntev dua qhov tsis muaj dab tsi, kov ntau tus neeg nyob ze, thiab xav tau cov ntsiab lus sib txuas tsawg dua los txuas koj cov electrode lossis polymer matrix.
Qhov ntawd tseem ceeb hauv peb txoj hauv kev:
Kev thauj khoom qis dua→ Cov khoom siv ntau dua hauv cov roj teeb hluav taws xob, lossis cov khoom siv kho qhov muag hauv cov txheej txheem.
Muaj zog mechanical anchoring→ Kev ntxhov siab hloov mus rau hauv lub raj es tsis txhob rub lub pob luv luv tawm ntawm matrix.
Resilient network→ nyob rau hauv silicon o los yog txheej flex, lub raj ntev stretches thiab re-kev sib cuag; ib tug luv luv xwb lov cov saw.
Kev ntes: siab L / D kuj txhais tau tias muaj zog van der Waals tangling. Yog tias koj tus neeg muag khoom xa koj lub cib, tsis muaj ultrasonic da dej coj qhov tseeb nam piv rov qab.
Qhov sib piv tiag
|
Feature |
Luv- txiav MWCNT (1–2 µm) |
Generic "ntev" MWCNT |
Tanfeng High AR MWCNT |
|---|---|---|---|
|
Ntev / OD |
1-2 µm / 10-30 nm |
"5-20 µm" (feem ntau tws) |
15-50 µm / 10-30 nm |
|
Aspect ratio |
50–200 |
200-800 (kev thov) |
1,000–3, 000+ (TEM- tau lees paub) |
|
Percolation hauv epoxy / PP |
1.5-3.0 wt% |
0.3-1.0 hli |
0.05-0.3 hli |
|
Mechanical reinforcement |
Nruab nrab |
Zoo |
High (load hloov qhov ntev pom zoo) |
|
Dispersion nyuaj |
Tsawg |
Siab, feem ntau re-agglomerates |
Nruab nrab (fluffy sau + qis- zoo li qub) |
|
Hlau impurity (Fe / Co / Ni) |
<100 ppm |
<300 ppm typical |
<30 ppm standard |
|
Ntev tuav tom qab purification |
N/A |
Feem ntau<50% of as-grown |
>90% ntawm li - loj hlob |
Cov kab kawg yog qhov sib txawv ntsiag to. Ntau "ntev MWCNT" poob ib nrab ntawm nws qhov ntev hauv cov kua qaub / anneal cov kauj ruam. Peb tsis ua.
Qhov twg Nws Them Tawm
Siab -nickel / tuab Li-ion cathodes: Cov raj ntev txuas hla cov txheej tuab, txiav CB ntau npaum li cas, tuav lub network ntawm kev ua haujlwm siab - khoom thauj khoom.
Silicon{0}} carbon anodes: Caij nplooj ntoos hlav-zoo li hla hla cov kab mob o; ua kom txoj kev electron ciaj sia ntawm 300% ntim hloov.
Transparent conductive films: Mus txog lub hom phiaj daim ntawv tsis kam ntawm<0.1 wt%, preserving >85% kev xa tawm.
EMI shielding composites: Ntau- taw tes sib tshooj nyob rau hauv ib lub dav zaus band, tsis yog DC conductivity xwb.
Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob (PA / PC / PPS): nruj thiab cuam tshuam sib npaug ntawm 0.3-0.8 wt% yam tsis muaj ntsia hlau torque spiking.
Shandong Tanfeng Ntug (AR-Specific)
Vertical kev koom ua ke suab zoo li cov lus hais kom txog thaum koj taug qab qhov twg nam piv ploj:
CVD chaw nyob tswj→ Peb tsis muaj peev xwm loj hlob ntxov kom ua kom muaj peev xwm loj tshaj plaws. Nyob ntev dua=cov raj ntev dua, nyob rau hauv ib txoj kab uas tswj tau.
Tsis yog-kev puas tsuaj → tsis muaj pob -milling, tsis muaj hniav - chopping. Hmoov yog de-entangled los ntawm kev tswj shear + nto passivation, yog li nws nyob twj ywm fluffy thiab dawb- ntws.
Purification uas khaws cia xaus→ Selective acid leach + siab -T anneal tee Fe/Co/Ni hauv qab 30 ppm yam tsis muaj cov lus qhia kub. Cov neeg muab khoom lag luam nres ntawm cov kua qaub ntxuav thiab hu nws 99%.
TEM ntev histograms rau ntau→ tsis yog ib qho OD / ntev thov, tab sis kev ntsuas ntsuas. CV ntawm nam piv nyob rau hauv ± 10% kev sib tw -rau - phiaj los nqis tes.
Tib reactor, gram rau ton→ koj lub hnab 500 g thiab koj lub hnab tuj tawm ntawm tib txoj kev loj hlob. Tsis muaj "R&D qib" vs "qib ntau lawm" qhov sib txawv.
Vim peb kuj ua MWCNT slurry thiab masterbatch nyob rau hauv -tsev, yog tias koj xav kom offload dispersion tom qab, peb twb tuav koj hmoov ntiv tes.
Hom Specifications (High AR Qib)
Qauv: 4–12 concentric phab ntsa
Sab nraud txoj kab uas hla10-30nm (ntaub band, ± 5nm)
NtevNtev: 15-50 µm (mean ~ 25 µm)
Aspect ratio: 1,000–3,000+
Cov pa roj carbon purity: Ntau dua lossis sib npaug li 98% (TGA)
Hlau residue: Fe<15 ppm, Co <10 ppm, Ni <5 ppm
Amorphous carbon: <1.5%
SSA (BET): 200–280 m²/g
ID/IG (Raman): >1.1
Qhov ntom ntomQhov hnyav: 0.04-0.09 g / cm³
Moisture: <0.5%
Functionalization: pristine / –COOH / –OH ntawm kev thov
Ntim Uas hwm Nanopowder Reality
High AR raj yog qhov zoo li qub - them thiab aerodynamic dua li tus qauv MWCNT. Peb pob kom tsis txhob oxidation, caking, thiab huab cua poob.
|
Ntau |
Thawv |
Ua Rau |
|---|---|---|
|
Tsawg dua los yog sib npaug li 500 g |
PE composite hnab (ob - kaw, anti- zoo li qub sab hauv) |
Lab TEM/SEM, npib -cell R&D, kev tshuaj ntsuam dispersion |
|
4-25 kg |
Lub tshuab nqus tsev- kaw lub hnab aluminium foil + desiccant + cov thawv sab nraud |
Pilot compounding, masterbatch, txheej sim |
|
1,000 kg |
FIBC ton hnab (PE / aluminium laminated liner, ESD- nyab xeeb) |
Electrode kab, ntxaib -ntsia hlau extrusion, bulk GWh noj |
Nitrogen tshem tawm ntawm cov ntawv ci thiab tuj - hnab hom muaj nyob ntawm kev thov.
Tsim nyog rau Geometry, Tsis yog tus lej xwb
Yog tias koj tab tom tshawb xyuas MWCNT qhov chaw, nug rauTEM Length Distribution, tsis yog "ntev 5-20 µm." Peb yuav nkoj aTsawg dua lossis sib npaug li 500 g PE- qauv hnabnrog rau qhov tseeb histogram, Raman, ICP-MS, thiab BET los ntawm ntau qhov ntawd- yog li koj lub chaw kuaj pom qhov sib piv tiag tiag ua ntej koj cog lus rau ib lub hnab ntawv lossis lub hnab ntim.
Qhia rau peb koj cov matrix (NMP cathode slurry / PA6 yaj / epoxy / dej-lub tsho tiv no) thiab seb koj lub caj dab puas yog percolation loading, flex lub neej, los yog ntsia hlau torque-peb yuav phim OD / ntev / functionalization es tsis txhob upselling lub raj ntev tshaj plaws ntawm lub txee.
Yog tias koj xav tau, kuv tuaj yeem pab koj teeb tsa peb qhov -cov ntsiab lus thauj khoom (0.1% / 0.3% / 0.6% Tanfeng siab-AR MWCNT vs. koj qhov luv luv tam sim no-txiav hauv paus) nrog rau qhov tseeb resistivity, flexural modulus, thiab dispersion-viscosity qhia txog tus nqi them rau ib puag ncig saib xyuas nws tus kheej.
Cim npe nrov: siab nam piv mwcnt hmoov, Tuam Tshoj siab nam piv mwcnt hmoov manufacturers, lwm tus neeg, hoobkas
