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.

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.

Gemini Dispersant for CNT, Graphene and Carbon Black Applications-Hunan Kela Materials Co. LTD

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Gemini Dispersant for Carbon Materials

Low-dosage dispersant for high-surface-area carbon powders

Introduction

This product is an advanced diquaternary ammonium (Gemini) dispersant developed for hard-to-wet, high-surface-area carbon powders. It is designed to deliver effective dispersion at low dosage while maintaining viscosity control and long-term stability under challenging formulation conditions.

Typical applications include carbon nanotubes, graphene, porous carbons, and fine carbon blacks used in conductive, functional, and advanced material systems. The dispersant is intended for formulation engineers who require predictable processing windows and consistent end performance rather than maximum loading at any cost.

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Product Parameter

Dispersant parameters

Parameter	Value / Range
Material type	Diquaternary ammonium (Gemini-type) dispersant
Ionic nature	Cationic
Molecular architecture	Twin-head (Gemini) surfactant
Physical state	Liquid
Appearance	Clear to slightly hazy
Active matter	Grade-specific
Recommended use level	0.1–1.0% (formulation-dependent)
Effective concentration window	Low-dosage effective; optimize vs surface area
pH operating range	4–10
Solubility	Water and polar solvent systems
Salt tolerance	Moderate to high (system dependent)
Thermal stability (handling)	Stable under typical dispersion processing conditions
Foaming tendency	Low to moderate
Compatibility	Risk with strong anionic dispersants/polymers
Addition order	Pre-dissolve in liquid phase before powder addition
Storage stability	12 months, sealed original container
Handling notes	Avoid direct contact with concentrated anionic packages
Typical use intent	Dispersion stabilization, viscosity control, performance consistency

Product feature

Short Answer

Advanced diquaternary ammonium (Gemini) dispersant designed for high-surface-area carbon powders. Effective at low dosage, it delivers adsorption-driven dispersion stability, controlled viscosity, and reliable performance under challenging salt and pH conditions.

Key Benefits

Effective at low dosage, minimizing formulation disturbance.
Strong adsorption on carbon surfaces, improving dispersion stability.
Robust performance under elevated ionic strength and pH variation.

Typical Dosage Window

0.1–0.5% based on total formulation weight.
0.3–1.0% based on carbon solid content for high surface area powders.

Compatibility & Constraints

Potential incompatibility with anionic dispersants or anionic polymer packages.
Risk of flocculation or precipitation when strong anionic systems cannot be adjusted.
Recommended addition order: dissolve dispersant fully before introducing powder.

Typical Properties

Appearance	Clear to slightly hazy liquid
Active content	Specified per grade
Recommended pH	4–10
Solubility	Water / polar solvents
Foaming tendency	Low to moderate
Storage stability	12 months in sealed container

How to Use

Dissolve dispersant completely in the liquid phase.
Pre-wet carbon powder under controlled agitation.
Apply high shear or optional ultrasonication, followed by low-speed deaeration.

FAQ

Can it be used with common resins or latex systems? — Compatibility depends on ionic balance.
How does it behave in hard water or high-salt systems? — Stable within the recommended range.
How to judge dispersion success? — Stable viscosity and absence of sedimentation.
Is ultrasonication mandatory? — Optional for very high surface area powders.
Does higher dosage always help? — Excess may increase viscosity without benefit.
Can it reduce conductivity scatter? — Improved dispersion uniformity typically helps.
Is long-term storage feasible? — Yes, within the recommended dosage window.
Can it be post-added? — Pre-dissolution is strongly preferred.
Does it affect curing or downstream processes? — Minimal at low dosage.
Is regulatory compliance application-dependent? — Yes, user confirmation required.

Downloads & Inquiry

Technical Data Sheet, Safety Data Sheet, and formulation protocol are available upon request.

Application area

Carbon nanotube dispersions
Graphene dispersions
Conductive coatings
Functional inks
Polymer composites
Advanced electronic material formulations

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