aqueous single-walled carbon nanotube conductive paste, 1.0?0.1 wt% content, OD 1.4?0.5 nm; Lengthum>100; Dispersant Content 0.6?0.03 wt%Product Type: Single-walled carbon nanotube material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR?
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What is the significance of the dispersant-to-nanotube ratio in this aqueous SWCNT conductive paste, and how does it affect the balance between conductivity and processability?
The paste contains 1.0±0.1 wt% solid content (nanotubes) and 0.6±0.03 wt% dispersant, yielding a dispersant-to-nanotube ratio of approximately 0.6:1. This ratio is optimized to stabilize the nanotubes in water while minimizing excess dispersant that could insulate the nanotubes and reduce electrical conductivity. The stated pH range of 5.0–9.0 supports stable dispersion for coating or formulation workflows.
What are the metal impurity levels in this SWCNT paste, and are they low enough for sensitive electronic or electrochemical applications?
The metal impurity levels are specified as Cr 1.22 ppb, Cu 0.331 ppb, Fe 3 ppb, Mn 6.3 ppb, Ni 0 ppb, Zn 0 ppb. These sub-ppb to low-ppb levels are suitable for high-purity research applications where trace metals could interfere with catalytic activity, battery cycling, or semiconductor device performance.
How does the pH range of 5.0–9.0 affect the stability and handling of this aqueous SWCNT conductive paste?
The pH range of 5.0–9.0 is specified to maintain the dispersion stability of the single-walled carbon nanotubes, preventing aggregation or sedimentation. The paste is aqueous, and the dispersant content (0.6±0.03 wt%) is optimized for this pH window. Deviations outside this range may cause flocculation or viscosity changes, impacting coating uniformity and processability.
This aqueous single-walled carbon nanotube conductive paste (AF-CNTP-AQSW series) offers a controlled solid content of 1.0±0.1 wt% and dispersant content of 0.6±0.03 wt%, with a narrow diameter distribution (1.4±0.5 nm) and length >100 μm, providing consistent properties for conductive additive or coating formulations. Its low metal impurity levels (ppb range) make it suitable for high-purity applications, but the low solid content and viscosity ≤5000 mPa·s require careful dispersion processing.
Positive
- Controlled solid and dispersant content: Solid content of 1.0±0.1 wt% and dispersant content of 0.6±0.03 wt% ensure reproducible formulation for dispersion and coating processes.
- High purity and controlled dimensions: Outside diameter of 1.4±0.5 nm, length >100 μm, and low metal impurity levels (ppb range) enable high-performance conductive applications with minimal contamination.
Trade-offs
- Viscosity handling requirements: Paste viscosity ≤5000 mPa·s may require mechanical mixing or sonication for uniform dispersion, adding a processing step in lab workflows.
- Low solid content: At 1.0 wt% solid content, achieving desired nanotube loading in composites or films requires larger volumes of paste, increasing material handling and processing time.
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).
