The tips for using dispersants mainly include the following aspects:
Select the appropriate type of dispersant: Choose different types of dispersants according to the properties of the material to be dispersed and the application requirements. For example, polymer dispersants are suitable for coatings, inks, etc., while mineral oil dispersants are suitable for certain specific industrial applications.
Control the amount used: The amount of dispersant used should be moderate. Excessive use will not only increase production costs, but may also affect the performance of the material. The generally recommended addition amount is 0.2%-2% of the material mass, and the specific amount should be determined based on experimental optimization.
Control pH value: Some dispersants have requirements for the pH value of the solution, which needs to be adjusted according to the properties of the dispersant to maintain a suitable pH value.
Pay attention to the influence of temperature: Some dispersants are sensitive to temperature, and controlling the temperature can ensure that the dispersant performs best. For example, when using UV dispersants in weak solvent inks, the operating performance can be improved by raising the temperature to about 60°C.
Avoid mixing different types of dispersants: Different types of dispersants cannot be mixed, otherwise they may interact with each other, reduce the dispersion effect or cause product quality to deteriorate.
Storage conditions: Dispersants need to be stored in a dry, cool, ventilated place, away from fire and organic matter to ensure their stability and effectiveness.