Nyob rau hauv lub chaw soj nstuam ntawm cov khoom tsim tshiab, ntau tus engineers feem ntau ntsia tsis pom kev ntawm cov pa roj carbon nanotubes nyob rau hauv qab ntawm lub beaker uas tsuas yog qhib tsis tau. Txawm hais tias cov pa roj carbon nanotubes muaj qhov tsis zoo ntawm hluav taws xob thiab thermal conductivity, lawv qhov tawv nqaij ntawm "tsis kam ua kom tawg" tau ua rau ntau lub tuam txhab poob siab. Yuav kom daws tau qhov teeb meem no, carbon nanotube conductive paste thiab masterbatch tau qhia rau lub khw. Yog li, dab tsi yog carbon nanotube conductive paste thiab masterbatch? Raws li daim ntawv thov kev lag luam, peb puas yuav npaj tau- cov khoom lag luam ncaj qha, lossis yuav cov hmoov ntshiab thiab faib nws tus kheej?
1. Cov ntsiab lus mob ntawm Pristine Carbon Nanotube Powder: Vim li cas thiaj xav tau "Pre-Dispersion"?
Pristine carbon nanotube hmoov yog heev nquag mus rau agglomeration vim muaj zog heev van der Waals rog. Kev siv ncaj qha ua rau muaj kev cuam tshuam tsis zoo thiab kev ua haujlwm tsis ruaj khov, yog li kev lag luam hauv qab feem ntau tsis lees txais kev siv ncaj qha ntawm cov hmoov pristine.
Freshly tsim carbon nanotube hmoov yog nyob rau hauv ib tug hnyav agglomerated lub xeev nyob rau hauv lub microscopic theem. Thaum siv, kev sib tsoo yuav tsum tau ua kom tawg ib tus neeg cov pa roj carbon nanotubes kom qhib cov agglomerates. Kuj tseem muaj kev sib cuam tshuam ntawm electrostatic ntawm cov pa roj carbon nanotubes, uas ua rau muaj qhov cuam tshuam loj heev thaum ua cov tshuaj nplaum, ua rau muaj teeb meem tawg thaum lub sij hawm lithium roj teeb slurry sib tov.
Qhov feem ntau ntawm cov neeg siv khoom qis tau txais CNT hmoov yog: "Peb siv cov khoom no li cas?" - yog xav tau siab - khoom siv hluav taws xob dispersion los yog ua rau muaj kev cuam tshuam tsis ruaj khov. Yog li ntawd, kev lag luam tau tsim ob daim ntawv "pre-dispersed" khoom: conductive paste thiab conductive masterbatch.
2. Carbon Nanotube Conductive Paste: Kua "Npaj-rau-Siv" tshuaj
Cov pa roj carbon nanotube conductive paste yog cov khoom ua kua uas CNTs tau ua ntej - dispersed nyob rau hauv cov kuab tshuaj xws li NMP lossis dej, nrog cov ntsiab lus ntawm cov khoom feem ntau ntawm 5%-6.25%. Cov neeg siv khoom hauv qab tuaj yeem siv ncaj qha tawm ntawm lub thawv rau lithium roj teeb electrode txheej.
Lub ntsiab feature ntawm paste yog "convenience": "Nws yog ib tug conductive kua ua los ntawm dispersing CNTs rau hauv hluav taws xob- qib NMP tov siv ib tug tshwj xeeb dispersion txheej txheem thiab tshwj xeeb dispersion khoom. Cov muab tshuaj txhuam muaj siab stability, zoo flowability, yog ib qho yooj yim rau khaws thiab siv, thiab muaj zoo compatibility nrog lithium roj teeb anode thiab cathode cov ntaub ntawv.
Yam khoom paste parameter:
| Parameter | Tus nqi |
|---|---|
| Tag Nrho Cov Ntsiab Lus | 6.25% |
| CNT Cov ntsiab lus | 5% |
| Cov ntsiab lus Dispersant | 1.25% |
| Moisture | Tsawg dua lossis sib npaug li 1500 ppm |
| viscosity | Tsawg dua lossis sib npaug li 20000 mPa·s |
| Kev zoo | Tsawg dua los yog sib npaug li 20 μm |
Daim ntawv thov scenarios:Muab tshuaj txhuam yog tsuas yog siv nyob rau hauv lub lithium roj teeb teb. Pom zoo cov nyiaj ntxiv rau cov khoom sib txawv cathode yog raws li hauv qab no:
LCO (Lithium Cobalt Oxide):0.7% -1.0% (siab zog hom) / 2.0% -3.0% (siab zog hom)
NCM (Ternary):0.7% -1.0% (siab zog hom) / 1.5% -2.0% (siab zog hom)
LMO (Lithium Manganese Oxide):0.8% -1.2% (siab zog hom) / 1.5% -2.0% (siab zog hom)
3. Carbon Nanotube Conductive Masterbatch: Khoom "Npaj-rau-Mix" daws
Cov pa roj carbon nanotube conductive masterbatch yog cov khoom lag luam granular uas CNTs tau ua ntej -dispersed hauv thermoplastic resins, nrog CNT cov ntsiab lus feem ntau yog 10%-25%. Cov neeg siv khoom hauv qab sib xyaw nrog cov yas hauv kev faib ua feem thiab tom qab ntawd txhaj pwm lossis extrude kom tau txais cov khoom siv yas.
Lub ntsiab lus ntawm masterbatch yog: "Carbon nanotube functional masterbatch yog ib tug ua haujlwm masterbatch nrog siab CNT cov ntsiab lus, ua los ntawm ua ntej - dispersing CNTs nyob rau hauv polymer resins. Nws yog feem ntau tsim los ntawm kom meej compounding CNTs nrog molten thermoplastic polymers thiab ces txias thiab pelletizing."
Yam khoom masterbatch:
| Khoom siv hauv paus | CNT Cov ntsiab lus | Pellet Resistance | Yam ntxwv |
|---|---|---|---|
| PC (Polycarbonate) | 15% | Tsawg dua lossis sib npaug li 30Ω | Siv rau kev ntim khoom siv hluav taws xob |
| PA66 (Nylon 66) | 15% | Tsawg dua lossis sib npaug li 30Ω | Siv rau automotive roj kab |
| PP (polypropylene) | 20% | Tsawg dua lossis sib npaug li 30Ω | General anti- zoo li qub |
| PA12 (Nylon 12) | 15% | Tsawg dua lossis sib npaug li 30Ω | Tshwj xeeb rau roj kab |
Core zoo ntawm masterbatch:
Siv cov pa roj carbon nanotube ua haujlwm masterbatch zam kev tsim cov plua plav loj thaum lub sijhawm tsim khoom, pab cov neeg ua haujlwm noj qab haus huv thiab kev tiv thaiv ib puag ncig.
Thaum cov khoom siv rov ua dua thiab rov siv dua, cov hluav taws xob conductivity tseem yuav luag tsis hloov.
Cov txheej txheem sib xyaw masterbatch yog yooj yim, huv, thiab yooj yim rau kev khiav lag luam.
Cov pa roj carbon nanotube conductive masterbatch tsim thiab tsim los ntawm Tanfeng Cov Khoom Tshiab yog tsim los ntawm ua ntej - dispersing CNTs rau hauv cov yas substrates los tsim ib qho yooj yim - rau - tawg siab - sau masterbatch. Thaum siv, nws yog tov nrog plastics nyob rau hauv qhov tsim nyog kev faib ua feem thiab ua tiav los ntawm cov yas yooj yim ua rau impart zoo hluav taws xob conductivity rau cov yas.
4. Paste vs. Masterbatch vs. Dispersion Koj tus kheej: Ib lub rooj kom nkag siab yuav ua li cas xaiv
Xaiv paste, masterbatch, lossis dispersion koj tus kheej nyob ntawm koj daim ntawv thov scenario thiab txheej txheem muaj peev xwm.
| Sib piv Dimension | Carbon Nanotube Conductive Paste | Carbon Nanotube Conductive Masterbatch | Yuav hmoov thiab faib koj tus kheej |
|---|---|---|---|
| Daim ntawv khoom | Kua (muaj NMP / dej) | Khoom granular | Qhuav hmoov |
| Core Application | Lithium roj teeb electrode txheej | Yas txhaj molding / extrusion | Ntau yam (yuav tsum muaj cov cuab yeej siv) |
| Txoj kev siv | Npaj siv tawm ntawm lub thawv, ncaj qha ntxiv rau slurry system | Sib tov nrog cov yas hauv kev faib ua feem, ces ua tiav | Yuav tsum muaj siab -zog dispersion zoo li ultrasonication/pob milling |
| Technical Barrier | Tsawg | Tsawg | Siab |
| Tus nqi thauj mus los | High (muaj cov kuab tshuaj ntau) | Tsawg | qis tshaj |
| Lub neej cia | Txwv (3-6 lub hlis) | Ntev -lub sij hawm | Ntev -lub sij hawm |
| Plua plav Risk | Tsis muaj | Tsis muaj | Yog lawm |
| Cov neeg siv pom zoo | Lithium roj teeb factories | Cov khoom lag luam yas | Enterprises nrog dispersion khoom thiab technology |
Qhov kev sib tw ntawm "dispersion koj tus kheej":Cov pa roj carbon nanotube conductive muab tshuaj txhuam kuj muaj kev cuam tshuam kev lag luam, feem ntau cuam tshuam rau hauv kev tshawb fawb thiab sib sau ua ke ntawm nanomaterial dispersion technology, nrog rau cov kev xav tau siab rau kev muab tshuaj txhuam cov khoom sib xws thiab kev tswj kom zoo. Tshwj tsis yog tias koj muaj cov cuab yeej dispersion tshaj lij thiab pab pawg kws tshaj lij, tsis pom zoo rau tus kheej -dispersion.
5. Shandong Tanfeng Cov Khoom Siv Tshiab: Kev Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij Tshaj Lij CNT, Masterbatch, thiab Hmoov
Shandong Tanfeng Tshiab Khoom Siv Technology Co., Ltd. tus kheej- tsim thiab tsim cov pa roj carbon nanotube conductive paste, conductive masterbatch, thiab siab -purity CNT hmoov. Nrog nws cov ntaub ntawv sib sib zog nqus thiab maj mam ua ntej - cov txheej txheem dispersion, nws tuaj yeem muab cov pa roj carbon nanotube pastes thiab masterbatches npog tag nrho cov tshuab, txuag cov neeg siv khoom qhov teeb meem ntawm "dispersion lawv tus kheej," thiab ua lub chaw tsim khoom muaj zog los pab cov tuam txhab hla cov ntawv thov.
Tau ntsib ntau yam kev xav tau ntawm kev lag luam sib txawv rau cov pa roj carbon nanotube dispersion, Shandong Tanfeng Cov Khoom Siv Tshiab ua kom pom qhov muaj peev xwm kho tau zoo:
Tag Nrho Cov Txheej Txheem Txheej Txheem, Tsis Muaj Sedimentation:Rau lithium roj teeb thiab txheej kev lag luam, Tanfeng Cov Khoom Tshiab muab NMP-raws li, dej-raws li, thiab ntau yam hnyav-raws li carbon nanotube conductive pastes. Siv tus kheej-tsim kho qhov chaw ua ke nrog qis-zog siab- cov txheej txheem shear, cov tshuaj txhuam kom tsis txhob muaj cov av tawv tawv tom qab ntau tshaj 90 hnub ntawm kev sawv, nrog cov hlau impurities tswj nyob rau hauv 50 ppm, npaj rau txheej ncaj qha.
Customized Masterbatch, Tshwj xeeb rau kev hloov kho yas:Rau cov kev lag luam yas thiab roj hmab, Shandong Tanfeng tuaj yeem kho cov pa roj carbon nanotube masterbatches tshwj xeeb raws li tus neeg siv khoom lub matrix resin hom (xws li PC, PA, PP, PE, thiab lwm yam). Los ntawm cov ntxaib tshwj xeeb- cov txheej txheem ntsia hlau pelletizing, nws ua kom muaj cov pa roj carbon ntau tawg thaum ua kom cov khoom siv hluav taws xob zoo tshaj plaws ntawm cov ntaub ntawv polymer, tso cai rau cov neeg siv khoom yooj yim ntxiv rau hauv kev faib ua feem kom ua tiav qhov xav tau los tiv thaiv- zoo li qub lossis cov nyhuv conductive.
Tshem tawm Kev Tshawb Fawb, txo cov nqi thiab nce kev ua haujlwm:Kev yuav Tanfeng Cov Khoom Siv Tshiab muab tshuaj txhuam lossis masterbatch txhais tau tias yuav nws xyoo ntawm cov txheej txheem patents. Cov tuam txhab lag luam tsis tas yuav them cov nqi kawm ntawv tsis tsim nyog txhawm rau nrhiav qhov sib txawv ntawm qhov sib txawv thiab qhov nrawm nrawm, thiab tuaj yeem tsom ncaj qha rau lawv cov kev siv zog los txhim kho kev ua tau zoo ntawm cov khoom kawg.
Summary : Paste, Masterbatch, or Dispersion Yourself - Yuav Xaiv Li Cas?
| Koj qhov xwm txheej | Pom zoo xaiv | Qhov laj thawj tseem ceeb |
|---|---|---|
| Koj yog lub Hoobkas roj teeb lithium xav tau cov txheej txheem electrode | ✅ Yuav cov khoom siv hluav taws xob | Npaj siv tawm ntawm lub thawv, kev lag luam txheem kev daws teeb meem |
| Koj yog cov khoom lag luam yas uas xav tau los tiv thaiv- cov khoom zoo li qub / conductive | ✅ Muas conductive masterbatch | Ncaj qha sib xyaw thiab txhaj tshuaj pwm, yooj yim thiab yooj yim |
| Koj muaj cov cuab yeej dispersion tshaj lij thiab pab neeg | ⚠️ Yuav hmoov thiab tawg koj tus kheej | Tus nqi tswj tau, tab sis technical barrier yog siab |
| Koj xav tau yooj yim, ruaj khov, thiab xa tawm sai sai | ✅ Muas paste or masterbatch | Tshem tawm cov txheej txheem dispersion |
Cov pa roj carbon nanotube conductive muab tshuaj txhuam thiab masterbatch yog qhov tseem ceeb ntawm cov chaw tsim khoom lag luam tshem tawm cov teeb meem ntawm "dispersion" rau koj, ob qho tib si tsim los rau cov neeg siv khoom qis kom "siv ncaj qha" - muab tshuaj txhuam rau lithium roj teeb factories rau txheej, masterbatch rau yas factories rau txhaj tshuaj molding. Tshwj tsis yog tias koj muaj peev xwm dispersion kev tshaj lij, nws tus kheej - tsis pom zoo dispersion ntawm hmoov. Rau cov tuam txhab tsim khoom niaj hnub nrhiav kev ua tau zoo, kev tawm los, thiab kev tswj hwm tus nqi, kev siv ua ntej - cov khoom xa tawm ncaj qha yog tus nqi ntau dua - zoo dua li yuav cov hmoov ntshiab thiab tawm tsam nrog koj tus kheej. Raws li cov kws tshaj lij carbon nanotube chaw tsim tshuaj paus, Shandong Tanfeng Cov Khoom Tshiab tau cog lus los muab koj nrog kev ruaj khov, yooj yim - rau- ua haujlwm muab tshuaj txhuam thiab masterbatch ib qho - nres kev daws teeb meem, ua rau sab saum toj -tier nanomaterials lub zog rau koj cov khoom hloov kho.