Key "Agent" For Enhancing Carbon Black: Dispersion Preferred, Long-Lasting Stability, Blacker and Bluer Phase

In various industrial coating fields such as paint and ink, automotive manufacturing, furniture manufacturing, etc., carbon black pigment, as a functional material, not only improves coating performance, but is also highly favored for its excellent covering power and color depth. Low VOC, 100% solid dispersant has also become the preferred choice for many applications. However,

The dispersion problem of carbon black pigments in aqueous and solvent based systems has always been a key factor restricting their application effectiveness

Milliken paint additive Borchers ® Borchi, a polyurethane wetting and dispersing agent ®Gen 0451， Not only does it improve the color dispersion problem in water-based and solvent based systems, but it also provides shorter grinding time, higher gloss, better slurry flowability, and long-term viscosity stability, providing a new solution for the selection of dispersants for carbon black pigments.

Selection of dispersants for carbon black

Traditional dispersants

The particle size of carbon black is usually small, but the particle size distribution is uneven. Traditional dispersants can cause some particles to form aggregates when dispersing carbon black pigments, resulting in low dispersion efficiency and poor dispersion stability. This often has a negative impact on the performance of coatings and inevitably increases production costs.

Wetting dispersant

Wetting dispersant, as a surfactant, can not only effectively reduce the interfacial tension between liquid and solid, thereby significantly improving the dispersion efficiency of pigments, but also shorten the grinding time and reduce costs.

High molecular weight dispersants have a large number of pigment affinity groups in their molecular structure, which can form a strong and durable adsorption layer on organic pigments. On the other hand, it can assist in better dispersion of carbon black particles in the medium, increasing their wettability and dispersion stability.

Figure 1: The electron rich planar structure of polyurethane wetting and dispersing agents

Product recommendation

Borchi®Gen 0451

Borchi ®Gen 0451 It is a 100% polymer non-ionic carbon black pigment dispersant that provides better flowability in the dispersion of carbon black pigments and improves the color rendering of difficult to disperse high pigment carbon black pigments in aqueous and solvent based systems. At the same time, it can elevate the blackness of carbon black pigments to a new level.

Figure 2 Borchi ®Gen 0415 physical characteristics

Experimental comparison

The function of dispersants is to reduce the surface tension between carbon black particles, making them easier to disperse in the medium. This not only affects the storage stability of carbon black, but also directly affects the variation of blackness values.

In order to conduct accurate analysis and comparison, tests are conducted on blackness, hue development, and gloss durability to visually compare the performance of each product.

01 # Using Borchi ®Gen 0451 Dispersant to improve the blackness of carbon black pigments

Figure 3 Borchi ®Gen 0451 Comparison of Blackness with Reference Sample

02#Borchi ®Gen 0451 Dispersants provide higher blackness and blue phase.

Figure 4 Borchi ®Gen 0451 Development of hue with reference sample

03#Borchi ®Gen 0451 Dispersants significantly enhance the gloss performance of carbon black pigments, and higher gloss indicates better durability in carbon black coatings.

Figure 5 Borchi ®Gen 0451 Comparison of glossiness with reference sample

Product Features

01 Special for difficult to disperse organic pigments and carbon black

Optimized for the characteristics of high pigment carbon black, while also effectively dispersing organic pigments to provide excellent dispersion effect and stability.

02 Excellent Carbon Black Dispersion

Borchi ®Gen 0451 It can effectively improve the dispersion effect of carbon black pigments in aqueous and solvent based systems, providing higher fluidity.

03 Grinding efficiency improvement, excellent viscosity reduction

Compared to traditional dispersants, Borchi ®Gen 0451 It can significantly shorten the grinding time, significantly reduce the viscosity of the grinding slurry, make the dispersion process more efficient, and improve production efficiency.

04 Long term dispersion stability

Borchi ®Gen 0451 Can form a stable dispersion system, ensure stable product quality, and maintain uniform dispersion of pigments.

05 Wide compatibility

Borchi ®Gen 0451 Not only suitable for carbon black pigments, but also effectively disperses various organic pigments, compatible with multiple resin systems, and meets the needs of different industries and applications