Reduce surface tension: Dispersant molecules form a thin film on the surface of pigment particles, reducing the interfacial tension between pigment particles and liquid, making the pigment easier to disperse.
Electrostatic repulsion: Dispersants can impart charges to pigment particles, preventing them from aggregating through electrostatic repulsion.
Spatial hindrance: Dispersant molecules form a protective film on the surface of pigment particles, preventing them from approaching each other through spatial hindrance effect.
Wetting effect: Dispersants can help liquids better wet pigment particles and improve the wetting properties of pigments.
Paint dispersants are widely used in multiple fields, including but not limited to:
Architectural coatings: Improve coating quality and appearance, prevent pigment settling and delamination.
Industrial coatings: Improve the uniformity and adhesion of coatings, especially on metal and plastic substrates.
Wood coatings: Improve the smoothness and gloss of the coating, prevent floating color and discoloration.
Automotive coatings: Improve the smoothness and durability of coatings, especially during the spraying process.
Printing ink: Improve the spreading and adhesion of ink on paper and other substrates.
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