Differentians are a chemical substance. The main function is to disperse solid particles and uniformly float in the liquid to form a stable dispersion system. The principle of the role of dispersant mainly includes the following aspects:
Surface activity: Disted molecules have hydrophilicity and hydrophobic parts, which can be adsorbed on the surface of solid particles to form a beam structure. Through this adsorption effect, the dispersant can become more hydrophilic on the surface of the solid particles, making it easier to disperse in the liquid.
Reduce particle size/viscosity: Differentians can reduce the aggregation and settlement of solid particles by reducing the interaction force between suspended solid particles, thereby making the particle size smaller. In addition, decentrals can also reduce the viscosity of liquid, increase its liquidity, and help the decentralization of solid particles.
Charging effect: Different agent molecules usually have charge, which can give solid particles charge, thereby generating electrostatic exclusion force and preventing solid particles from gathering and settlement. This charge effect can enhance the stability of the decentralized system and prevent solid particles from depositing at the bottom.
Obstacles: Disted molecules form a adsorption layer in the liquid, which can form obstacles and hinder the mutual contact and gathering of solid particles. By forming a dispersant adsorption layer, it can effectively prevent the re -convergence and settlement of particles.
In summary, the principle of the function of dispersant mainly includes surface activity, reduced particle size/viscosity, charge effects and obstacles. These effects are coordinated, so that solid particles can evenly disperse in liquid and maintain the stability of the decentralized system.