Oil single-walled carbon nanotubeconductivepaste High concentration MWCNTs water dispersion(~14 wt%) High concentration carboxyl MWCNTs waterdispersion, 2.16-2.64 wt% content, OD 1.4±0.5 nm; Lengthum>100Product Type: Single-walled carbon nanotube material
Research-grade laboratory product
|
|||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||
|
LABORATORY PROCUREMENT SUPPORT
For model selection, material specification matching, application fit or quotation confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
|
|||||||||||||||||||||||||||||||||
|
Supplier: Atomfair
Brand: ATOMFAIR®
|
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
This single-walled carbon nanotube conductive paste is formulated with NMP solvent and PVDF binder, requiring careful mixing to maintain dispersion homogeneity. The pH range of 5.0–9.0 and low metal impurity levels necessitate compatibility with downstream processes to avoid contamination or agglomeration.
- Dispersion Stability: The paste must be mixed thoroughly before each use to redisperse settled carbon nanotubes and ensure uniform conductivity.
- Solvent Compatibility: The NMP solvent is hygroscopic; therefore, the paste should be stored in airtight containers and used in low-humidity environments to prevent moisture absorption.
- Contamination Sensitivity: The low metal impurity levels (ppb range) require that all tools and substrates be cleaned to avoid introducing contaminants that could alter electrical properties.
- Viscosity Constraint: The viscosity (≤5000 mPa·s) is suitable for screen printing or slot-die coating, but the paste must be warmed to room temperature if stored at lower temperatures.
- pH Compatibility: The paste's pH range should be matched with the substrate or coating solution to avoid chemical reactions that could degrade the dispersion.
How does the low solid content (2.16-2.64 wt%) of this SWCNT conductive paste impact its conductivity versus coating processability for battery electrode fabrication?
The low solid content reflects a formulation optimized for uniform coating and dispersion, with PVDF binder and NMP solvent comprising the balance. The 2.16-2.64 wt% solid content (including 0.40 wt% SWCNTs and 2 wt% PVDF) keeps viscosity ≤5000 mPa·s, enabling smooth slot-die or doctor blade coating, while the SWCNT loading provides conductive percolation at low weight fractions. Higher solid content would increase viscosity and risk agglomeration, reducing film uniformity.
Is this NMP-based SWCNT paste compatible with conventional PVDF binder systems and NMP solvent recovery in lithium-ion battery electrode manufacturing?
Yes, the paste is formulated with PVDF (2±0.1 wt%) and NMP (97.6±0.1 wt%), making it directly compatible with standard battery electrode slurry recipes. The SWCNT content (0.40 wt%) and OD (1.4±0.5 nm) are designed for integration into cathode or anode coatings without additional binder or solvent adjustments. Low magnetized metal impurities (e.g., Fe 3.6 ppb, Ni 0 ppb) ensure minimal contamination in electrochemical cells.
What storage and handling precautions are required for this NMP-based SWCNT paste given its high NMP content and viscosity?
The paste contains 97.6 wt% NMP, a hygroscopic solvent with a flash point of 91°C, requiring storage in tightly sealed containers away from moisture and ignition sources. Viscosity ≤5000 mPa·s allows pumping or syringe dispensing at room temperature, but prolonged exposure to air may cause NMP evaporation and viscosity increase. Use in a fume hood or ventilated area with appropriate PPE (gloves, goggles) to avoid inhalation or skin contact with NMP.
This oil-based single-walled carbon nanotube conductive paste (AF-NM-C-SWCN-CNTP-R04E) is supplied at 2.16-2.64 wt% solid content with an outside diameter of 1.4±0.5 nm and length >100 μm, incorporating 0.40 wt% SWCNTs in an NMP/PVDF matrix for direct use in electrode slurry formulations.
Positive
- Pre-dispersed SWCNT in NMP/PVDF matrix: The paste contains 2±0.1 wt% PVDF binder and 97.6±0.1 wt% NMP solvent, enabling direct incorporation into battery electrode slurries without additional dispersion or binder preparation steps.
- High aspect ratio SWCNT geometry: Outside diameter of 1.4±0.5 nm and length >100 μm provide a high aspect ratio (>70:1) conducive to forming percolated conductive networks at low loading fractions in composite electrodes.
Trade-offs
- NMP solvent handling requirements: The paste uses NMP (97.6±0.1 wt%) as the carrier solvent, requiring proper ventilation, personal protective equipment, and solvent recovery systems due to NMP's reproductive toxicity classification and hygroscopic nature.
- Viscosity and pH variability constraints: Specified viscosity ≤5000 mPa·s and pH range 5.0–9.0 indicate batch-to-batch rheological variation that may require adjustment of coating parameters or formulation pH for consistent film deposition.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
