1. Cov ntaub ntawv khoom siv yooj yim
Khoom npe:Ultra-High Purity Carbon Nanotubes (UHP-CNTs)
Yam khoom:High-Purity Grades of Multi-Walled (MWCNTs) / Single-Walled (SWCNTs) CNTs
Purity Qib: Industrial Ultra-High Purity (>99.9% Cov pa roj carbon purity)
Qhov tsos:Sib sib zog nqus dub rau xim hlau luster hmoov, zoo heev flowability
Structure Integrity:High graphitic lattice perfection nrog tsawg yam ntxwv tsis xws luag
Tus cwj pwm tshwj xeeb:Catalyst residue -dawb, nrog cov pab pawg tswj tau qhov chaw ua haujlwm
2. Core Performance Parameters
Cov pa roj carbon purity:Ntau dua lossis sib npaug rau 99.9 wt% (ntawm kev sib xyaw ua ke siab -kub purification thiab acid kho)
Metallic Impurity Cov ntsiab lus: <100 ppm (Fe, Co, Ni catalyst residues)
Cov ntsiab lus tshauv: <0.05 wt% (measured at 950°C in air)
Graphitization degree:ID/IG Ratio<0.05 (Raman spectroscopy)
Ib cheeb tsam tshwj xeeb (SSA):250-400 m²/g (MWCNTs); 600-1000 m²/g (SWCNTs)
Bulk Density:0.08-0.15 g / cm³ (tapping ceev customizable)
Txoj kab uas hla Uniformity:Diameter Distribution CV<15%
3. Cov khoom siv hluav taws xob
Volume Resistivity:
Qhov tseeb:10⁻⁴ - 10⁻³ Ω·cm (Metallic SWCNTs)
Macroscopic hmoov:0.05 - 0.5 Ω·cm (compacted, cuam tshuam los ntawm kev tiv thaiv)
Hauv Composite Performance:
Ntawm 0.5 wt% loading: 10² - 10⁴ Ω·cm (polymer matrix)
Ntawm 2.0 wt% loading: 10⁻¹ - 10¹ Ω·cm (percolation tiav)
Qhov tseem ceeb Advantage:Ultra- siab purity ua kom cov neeg nqa khoom tawg tsawg tsawg los ntawm impurities, ua kom muaj kev coj ua nyob ze qhov kev txwv.
Surface Resistivity:
Thin Films/Coatings: 50 - 500 Ω/sq (at >85% pom lub teeb transmittance)
Conductive Pastes: 10² - 10³ Ω/sq (rau cov khoom siv hluav taws xob luam tawm)
Performance Feature:Reduced surface state density and lower contact resistance from enhanced purity significantly improve surface conductivity.
4. Yam ntxwv Dispersion
Dispersion Challenges & Solutions:
Ua ntej-Technologies kho mob:
Plasma nto activation
Supercritical CO₂-pab dispersion
Tsawg-kub pob milling rau de-agglomeration
Dispersion System Compatibility:
Aqueous Systems: Stable dispersion >30 hnub tsis muaj surfactants
Organic Systems:Dispersion concentration mus txog 5 mg / mL hauv NMP, DMF, THF
Polymer Melts:40% kev txhim kho nyob rau hauv dispersion efficiency ntawm ntsia hlau extrusion
Functionalization Options:
Kev kho mob me me oxidation (carboxyl cov ntsiab lus tswj tau ntawm 0.5-2.0 ntawm%)
Amination hloov kho (-NH₂ ceev: 1-3 pawg/nm²)
Silane coupling tus neeg sawv cev grafting (txhim kho qhov sib txuas sib txuas nrog inorganic matrices)
5. Lub cev muaj zog
Structure Properties:
Graphitic interlayer sib nrug: 0.34 ± 0.01 nm (siab crystallinity)
Average wall number: 3-8 layers (MWCNTs); single-wall integrity >95% (SWCNTs)
Defect density:<10¹⁰ cm⁻² (TEM statistics)
Thermal Properties:
Thermal conductivity: Axial 3000-3500 W / (m·K); Radial 15-25 W / (m·K)
Coefficient ntawm thermal expansion (CTE): Axial -1.5 × 10⁻⁶ K⁻¹; Radial 15 × 10⁻⁶ K⁻¹
Oxidation onset temperature: 650-700°C in air; stable >1800℃nyob rau hauv inert cua
Mechanical Properties:
Tensile strength: >100 GPa (SWCNTs); >50 GPa (MWCNTs)
Elastic Modulus: 1.0-1.2 TPa
Fatigue resistance: >10⁹ dabtsi yog khoov voj voog (ntawm 5 μm curvature radius)
6. Daim Ntawv Thov & Lub Hom Phiaj Kev Lag Luam
Txiav - ntug Electronics:
Quantum ntaus ntawv interconnects
Siab - cov khoom siv zaus transistor channel (fT > 100 GHz)
Additive theem rau superconducting composites
Precision Instrument Manufacturing:
Atomic force microscopy (AFM) cov lus qhia
Scanning tunneling microscopy (STM) electrodes
High -precision sensor strain gauges
Frontier Energy Applications:
3D conductive network tsim rau cov khoom siv - xeev cov roj teeb
Conductive coatings rau roj cell bipolar daim hlau
Interface cov ntaub ntawv rau cov khoom siv hloov pauv thermoelectric
Biomedical Devices:
Implantable kho mob electrodes
Neural teeb liab kaw microarrays
Highly biocompatible ntaub so ntswg engineering scaffolds
Aerospace tseem ceeb Cheebtsam:
Satellite conductive thermal tswj txheej
Spacecraft electromagnetic shielding composites
Kev txhawb zog theem rau lub teeb yuag, siab - lub zog muaj zog qhov chaw
7. Txoj Cai & Purification Technology Pathways
Multi-theem Purification Process:
Vapor{0}}theem Purification theem:
Chav{0}}pab catalytic oxidation (xaiv tshem tawm ntawm amorphous carbon)
Siab -kub tshuaj chlorine (cov ntaub ntawv tsis hloov pauv hlau chlorides)
Hydrogen txo qis rau kev kho mob
Kua-theem Purification theem:
Density gradient centrifugation (raws li qhov sib txawv ntom ntom)
Kev sib cais electrophoretic (raws li qhov sib txawv ntawm qhov sib txawv)
Loj cais chromatography (raws li hydrodynamic radius)
Physical Separation Technologies:
Ultracentrifugation teb sib cais (200,000g, chirality sib cais)
Dielectrophoretic sib cais (qhov sib txawv hauv AC teb dielectric teb)
Field -Flow fractionation (synergy of flow and perpendicular fields)
Purity Characterization Techniques:
Kub -programmed oxidation (TPO) rau amorphous carbon quantification
Inductively coupled plasma mass spectrometry (ICP-MS) rau kev tshawb nrhiav hlau
Electron zog poob spectroscopy (EELS) rau kev txheeb xyuas tshuaj lom neeg hauv zos
8. Kev Tswj Xyuas Zoo
Raw Material Traceability Control:
Hlau catalyst precursor purity: 99.999% (5N qib)
Cov pa roj carbon monoxide purity: 99.9999% (6N qib)
Cov khoom siv reactor: High -purity quartz lossis sapphire hauv ob sab phlu
Hauv -Kev Saib Xyuas:
Online laser -induced breakdown spectroscopy (LIBS) rau lub sijhawm tiag tiag - xyuas cov ntsiab lus hlau
Hauv -situ Raman spectroscopy rau graphitization℃saib xyuas
Mass spectrometry rau tiag - lub sij hawm tso pa roj muaj pes tsawg leeg nrhiav kom tau
Cov Khoom Muag Khoom Ua tiav Cov Txheej Txheem Kev Xeem:
Batch Consistency Testing:Cov txheej txheem kev txheeb cais ntawm 10 random kuaj ib batch
Qhov kawg Purity Verification:Neutron activation analysis (NAA) rau ppb-qib impurity detection
Kev ntsuam xyuas kev ncaj ncees:Siab -TEM daws teeb meem ua ke nrog kev kawm sib sib zog nqus duab tsom xam
Certifications & Standards Compliance:
Ua raws li SEMI (Semiconductor Equipment and Materials Institute) cov qauv
Raws li ASTM E2857-11 phau ntawv qhia rau nanomaterials characterization
Certified raws li ISO / TS 80004-13 nanotechnology terminology
9. Cov ntaub ntawv xeem neeg sawv cev
Electrical Performance Verification:
Field-effect mobility: SWCNT nyias zaj duab xis, 150,000 cm²/(V·s) (chaw kub)
Current-carrying capacity: Single MWCNT, >2 × 10⁹ A / cm² (Nqus puag ncig)
Tiv tauj tsis kam: Au electrode-CNT hu,<1 kΩ·μm
Thermal Performance Measurements:
Thermal conductivity ntsuas: Suspended micro{0}} txoj kev choj, ib leeg SWCNT, 3500 ± 150 W / (m·K)
Thermal stability: TGA-DSC ua ke, 0.5% qhov hnyav poob: 698℃(cua)
Composite Material Performance:
Epoxy resin / 0.3 wt% UHP-CNTs:
Volume resistivity: 4.2 × 10³ Ω·cm
Thermal conductivity: 1.85 W / (m·K) (450% nce)
iav hloov kub (Tg): nce 28 degree
10. Ntim & Cia Specifications
Clean Packing System:
Ntim Ntim:Multi-txheej txheej txhuas lub hnab (txheej PET / nruab nrab Al foil / PE puab)
Secondary Container:Stainless hlau nqus tsev vacuum-cov kaus poom kaw (nqus mus rau 10⁻⁶ Pa ua tiav)
Kev Tiv Thaiv Tertiary:Anti-static, poob siab- cov ntaub ntawv pov thawj shipping (MIL-STD-810G raws)
Tshwj xeeb ntim Configurations:
Inert Gas Tiv Thaiv:Argon{0}} tau sau, O₂ cov ntsiab lus<1 ppm, H₂O content <0.1 ppm
Lub teeb-shielding Design:Amber -cov khoom ntim xim, UV xa tawm<0.1%
Humidity Indications:Ua -hauv hluav taws xob cov av noo sensor nrog cov ntaub ntawv kaw
Specifications & Labeling:
Standard Loj:1g, 5g, 10g (R&D qib); 50g, 100g, 500g (qib ntau lawm)
Cov ntaub ntawv Labeling:QR code traceability system nrog rau batch tooj, purity daim ntawv pov thawj, cia tej yam kev mob
Cov cim tshwj xeeb:Radioactivity screening mark (ua kom tsis txhob muaj kab mob sib kis)
Cia & Tsheb thauj mus los:
Ntev - Lub Sij Hawm Cia:-20℃nyob rau hauv lub tshuab nqus tsev, 5-xyoo txee lub neej
Kev pom zoo siv:Kov hauv hnab looj tes tom qab qhib (H₂O/O₂<0.1 ppm)
Kev Thauj Mus Los:Txias-chain thauj (2-8 degree) nrog ntsuas kub ntawm lub sijhawm tiag tiag
11. Lub Tuam Txhab Kev Muaj Peev Xwm
R&D Platform:
Ultra{0}}Lab kuaj huv:Chav Kawm 100 cleanroom, 2000 m² cheeb tsam
Analytical Test Center:Nruab nrog aberration- kho TEM, μ-XRF, TOF-SIMS
Pilot-scale Platform:Tag nrho automated nruam purification kab
Patent & Technology Portfolio:
Core Patents: 32 (nrog rau 18 PCT patents)
Proprietary Paub-yuav ua li cas: 15 teeb tshwj xeeb purification formulations rau ntau daim ntawv thov
Manufacturing Peev Xwm:
Cov Khoom Siv Kho Mob:Co- tau tsim tshwj xeeb purification reactors nrog cov cuab yeej tsim khoom
Qib Automation: Fully automated process control, product consistency >98%
Quality Assurance System:
Zoo Traceability:Tag nrho cov digital traceability los ntawm raw khoom mus rau cov khoom tiav
International Certifications:ISO 9001: 2015, ISO 14001, ISO 45001
Technical Service Peev Xwm:
Pab neeg tsim kev thov:60% Ph.D. tuav, nruab nrab 10 xyoo kev lag luam kev
Kev Pab Txhawb Cov Neeg Siv Khoom:Muab tag nrho cov kev pab cuam: purity verification, application test, process optimization
Sib koom R & D:Co- tsim daim ntawv thov lab nrog cov neeg siv khoom rau kev txhim kho kev daws teeb meem
Cim npe nrov: ultra- siab purity carbon nanotubes, Tuam Tshoj ultra- siab purity carbon nanotubes manufacturers, lwm tus neeg, Hoobkas
