How does SWCNT slurry improve conductivity compared with carbon black?

Because of the high aspect ratio and intrinsic conductivity of SWCNTs, target resistivity is achieved at much lower loading than with conventional carbon black.

Which applications commonly use SWCNT slurry?

Typical uses include ESD and antistatic plastics, conductive and shielding coatings, printed electronics and battery electrodes.

How do I process SWCNT slurry in my formulation?

The slurry can be incorporated with high-shear mixing, ultrasonic dispersion or standard compounding so that SWCNTs form a continuous conductive network.

What is the difference between SWCNT slurry and CNT powder?

Slurry is pre-dispersed and resists agglomeration, enabling lower CNT dosage and more reproducible conductivity than dry CNT powder.

Electric materials-Hunan Kela Materials Co. LTD

Q: What is SWCNT slurry?

SWCNT slurry is a liquid dispersion of single-walled carbon nanotubes that simplifies processing and provides stable, uniform conductivity in target materials.

SWCNT Slurry for Battery Electrodes | Ultra-Low Loading Conductive Additive – Single-Walled Carbon Nanotube Dispersion f

SWCNT Slurry – High-Conductivity Single-Walled Carbon Nanotube Dispersion for ESD Plastics, Coatings and Battery Materials

SWCNT slurry is a high-conductivity, pre-dispersed formulation of single-walled carbon nanotubes. It provides fast, uniform dispersion in plastics, coatings and battery materials, enabling ultra-low loading, stable resistivity and clean processing in water, NMP or ethanol.

Introduction

Our SWCNT slurry is formulated using high-aspect-ratio single-walled carbon nanotubes (eDIPS process). Through proprietary dispersion technology, the CNT network remains stable and uniform in water, NMP, ethanol and mixed systems. It is designed for ESD plastics, conductive coatings, printed electronics and battery electrode additives.

Key Features

Excellent dispersibility in water, NMP and ethanol
Long-aspect-ratio SWCNTs preserved during dispersion
5–10× lower loading vs. carbon black for same resistivity
Compatible with PC/ABS, PA, PBT, TPU, PU, epoxy and coatings
Stable electrical performance and uniform percolation
Available in multiple concentrations (0.05–0.4 wt%)

Applications

ESD & antistatic plastics
Conductive and shielding coatings
Printed electronics and conductive inks
Lithium-ion battery electrodes
Transparent and semi-transparent conductive films

Product Grades

Grade	CNT Type	Solvent	Concentration
SWCNT-A	EC1.5-P	Water	0.1–0.4 wt%
SWCNT-B	EC2.0-P	NMP	0.05–0.3 wt%

Comparison vs Carbon Black

Property	SWCNT Slurry	Carbon Black
Typical Loading	0.02–0.1%	1–5%
Color Impact	Low	High (blackening)
Conductive Network	Stable at low dosage	Requires high loading
Processing	Easy (pre-dispersed)	Difficult (powder agglomeration)

Technical FAQ

1. What is SWCNT slurry?

A ready-to-use dispersion of single-walled carbon nanotubes for plastics, coatings and battery applications.

2. Why is it better than CNT powder?

Pre-dispersed slurry avoids agglomeration, improves consistency and reduces mixing time.

3. What is the typical dosage?

ESD plastics: 0.02–0.1% depending on resin and resistivity target.

4. What solvents are available?

Water, NMP, ethanol and customized blends.

5. Is it compatible with PC/ABS and PA?

Yes. It performs well in PC/ABS, PA6, PA66, PBT, TPU, PU and epoxy systems.

Global Supply & Support

Hunan Kela Materials provides global supply of SWCNT slurry to customers in the U.S., Europe, Korea and Southeast Asia. Technical support, customized formulations and sampling are available.

Why Choose Kela

High-aspect-ratio SWCNT production and dispersion capability
1000 MT/year CNT slurry manufacturing capacity
Fast lead time and consistent global supply
Technical customization for plastics, coatings and batteries

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What problem it solves

Enable ESD/anti-static or moderate conductivity in plastics/coatings with lower filler load than traditional carbon black (often possible, but not guaranteed).
Improve heat dissipation and reduce localized hotspots in electronics housings, adhesives, and coatings.
Increase gas/moisture barrier and reduce permeation in packaging films and protective coatings.
Reinforce mechanical properties (modulus, scratch/abrasion resistance) in thin layers where platelet alignment is favorable.

System limitations (do not skip)

Dispersion-sensitive: Agglomeration causes unstable conductivity, poor appearance, and weak mechanical gains.
Percolation is formulation-specific: Same loading can behave differently across resins, solvents, and processing routes.
Trade-offs: Higher conductivity targets can increase viscosity, haze, and surface roughness.

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