The working principle diagram of dispersant

The working principle of a dispersant involves several key components, including wetting, stabilization, electrostatic repulsion, and interfacial tension reduction. Here is a step-by-step description of the working principle:

1.Wetting: The dispersant contains surfactant properties that lower the surface tension of the medium. This allows the dispersant to spread evenly over the surface of the particles or droplets, improving their wetting and interaction with the dispersant molecules.

2.Stabilization: The dispersant has a molecular structure that consists of hydrophilic (water-attracting) and hydrophobic (water-repelling) portions. When dispersed in the medium, the hydrophilic part interacts with the surrounding liquid molecules, while the hydrophobic part adsorbs onto the surface of the particles or droplets. This creates a stabilizing layer around the particles or droplets, preventing them from coming into close contact with each other and forming aggregates.

3.Electrostatic repulsion: Some dispersants can generate charged species on the particle or droplet surfaces. The dispersant molecules can ionize in the medium, creating charged groups that repel each other due to their like charges. This electrostatic repulsion further hinders the particles or droplets from aggregating.

4.Interfacial tension reduction: Dispersants can reduce the interfacial tension between the particles or droplets and the surrounding medium. By lowering the interfacial tension, the dispersant helps to overcome the attractive forces between the particles or droplets, minimizing their tendency to coalesce or settle.

By utilizing these mechanisms, dispersants effectively break up solid particles or liquid droplets and keep them dispersed in the medium. This allows for better mixing, uniform distribution, and prevention of clumping or settling.

Please let me know if you have any further questions.