Journal of Thin Films, Coating Science Technology & Application Review Article
Strategic Dispersion and Stabilization Protocols for Aqueous Organic Pigments: High-Speed Dispersion vs. Bead Mill Systems.
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Abstract
In modern coating industry era, aqueous organic pigment dispersions are critical components for the development of flexo and inkjet inks, textile colorants, and various commercial water-based tinting systems. So converting raw, hydrophobic, and heavily agglomerated pigment powders into the finely dispersed, sub-micron colloidal suspensions. It will achieving peak color strength, transparency, gloss, and multi-year shelf stability requires
This review examines the mechano-chemical and thermodynamic forces driving the aqueous pigment dispersion process. In the pigment dispersion process—surface wetting, mechanical breakdown or deagglomeration and colloidal stabilization—and find out the how structured "anchor-block" polymeric surfactants function across electrostatic, steric, and electrosteric regimes. Finally, we evaluate the performance of High-Speed Dispersers (HSD) against Media-Assisted Agitator Bead Mills, focusing on local energy density, shear rate distribution, particle size reduction mechanics, and the rheological properties.
Keywords
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