Name: Cationic Dispersant for Carbon Black CDC-10
Brand: Coatingsink
SKU: cationic-dispersant-carbon-black-cdc
Availability: InStock

Question 1

Why use a cationic dispersant for carbon black instead of an anionic one?

Accepted Answer

Carbon black surfaces carry acidic groups that respond poorly to anionic wetting. Cationic dispersants adsorb strongly onto the acidic carbon black surface through electrostatic attraction, providing superior steric stabilisation and higher jetness (lower L* value) compared with anionic or nonionic alternatives.

Question 2

What is the recommended dosage of CDC-10 relative to carbon black?

Accepted Answer

Typical loading is 20–40% active dispersant on pigment (based on carbon black weight). The optimal level depends on the carbon black grade and oil absorption value; high-structure furnace blacks generally require the upper end of the range. Pre-dilute CDC-10 in the aqueous phase before adding pigment.

Question 3

Is CDC-10 compatible with anionic binders such as acrylic emulsions?

Accepted Answer

Compatibility must be verified case by case. While CDC-10 is cationic, it is designed for use at low treat rates where charge flocculation with anionic latex is minimised. We recommend a jar compatibility test at the final formulation pH before scale-up, and addition of the pigment paste last into the letdown.

Appearance	Dark amber liquid
Amine Value	45–55 mg KOH/g
Active Content	50% in water
Viscosity (25°C)	800–1800 mPa·s
pH (10% solution, 25°C)	3.5–4.5

Cationic Dispersant for Carbon Black CDC-10

Specifications

FAQ

Interested in Cationic Dispersant for Carbon Black CDC-10?