Universal ultra-dispersants for both organic and inorganic carbon blacks

For a universal ultra-dispersant suitable for both organic and inorganic carbon blacks, the dispersant must meet the following key requirements:

Broad Compatibility: The dispersant should be effective in both water-based and solvent-based systems and compatible with the surface characteristics of both organic (e.g., conductive carbon blacks) and inorganic (e.g., furnace carbon blacks) carbon blacks.

Exceptional Wetting and Dispersing Power: It should provide a strong ability to disperse carbon black particles, reducing agglomeration and preventing re-flocculation, thus ensuring a stable dispersion over time.

Enhanced Stability: The dispersant needs to work across a wide range of environmental conditions, such as varying pH levels, temperatures, and salt concentrations, while maintaining dispersion stability.

Here are some commonly used ultra-dispersants for both organic and inorganic carbon blacks:

Polyurethane-based Dispersants: These are excellent for both organic and inorganic carbon blacks. They provide strong dispersing power and stability in both solvent-based and water-based systems, commonly used in coatings, inks, and polymer formulations.

Styrene-Acrylic Copolymer Dispersants: These dispersants are versatile and provide good dispersion for both organic and inorganic carbon blacks. They work well in both solvent-based and water-based systems, offering good stability and anti-agglomeration effects.

Modified Polyether Dispersants: Polyether-based dispersants are effective in dispersing both organic and inorganic carbon blacks, offering good wetting ability and stability in different systems, especially in high-concentration dispersions.

Phosphate Ester-based Dispersants: These dispersants, often modified with functional groups like phosphates, are effective in dispersing carbon blacks in a variety of applications, providing good stabilization for both organic and inorganic carbon blacks.

Modified Silane-based Dispersants: These dispersants combine organic molecules (e.g., silanes) with carbon black surfaces, offering enhanced dispersion and stability, especially in solvent-based formulations.

Block Copolymer Dispersants: These are designed to be effective for both organic and inorganic carbon blacks by using a block copolymer structure, which provides high dispersing power and ensures excellent stability under varying conditions.

These dispersants are highly effective for ultra-dispersion because they not only disperse carbon black particles but also stabilize them against agglomeration and settling, ensuring that the dispersion remains stable over time.

Anjeka have a Hyperdispersant ,the specifical data as below:

A polymer dispersant for dispersing pigments in solvent-based coatings.

PRODUCT DATA

Chemical Composition: Hyperbranched polyester compound solution with imino anchoring functional groups.

Typical Physical Data:

The data provided here are typical values and not the technical specifications of the product.

Appearance: Brown-yellow transparent liquid

Acid Value (mg KOH/g): 1-20

Amine Value (mg KOH/g): 1-20

Density (g/cm3) at 23°C: 0.90-1.10

Viscosity (cps) at 25°C: 5-250

Active Content (%): 40

Solvent: n-Butyl Acetate

APPLICATION GUIDELINES

Coating Industry and Printing Inks

Features and Benefits

Helps enhance the gloss, vivid color, anti-flocculation properties of organic pigments, and reduces fogging caused by uneven dispersion. Especially effective in dispersing high-surface-area carbon blacks, improving the blackness of the coating. This product also helps shorten grinding time, increase production efficiency, and improve the storage stability of coatings.

APPLICATION SECTORS

Recommended for use in solvent-based coatings for dispersing pigments and printing inks, particularly for stabilizing organic pigments, especially carbon black. This product is compatible with many resins used in coatings, such as polyester resins, polyurethane resins, and acrylic resin systems.

RECOMMENDED LEVELS

Dispersant dosage (in purchased form) based on pigment:

Organic Pigments: 10%—50%

Titanium Dioxide or Inorganic Fillers: 0.5%—2%

Inorganic Pigments: 4%—8%

Carbon Black: 10%—30%

High Surface Area Carbon Black: 40%—80%

The above data represents empirical usage, and the optimal dosage should be determined through a series of tests.

INCORPORATION and PROCESSING INSTRUCTIONS

For best performance, the dispersant should be added to the grinding paste first, followed by the pigment.

PACKAGING

25kg Inner Coated Iron Drum

200kg Ring-Lock Plastic Drum