The difference between oil repellent and wetting agent

Oil repellents and wetting agents are two common chemical additives in industrial production and daily life, although they are used to improve the surface properties of materials, their functions and application scenarios are significantly different.

The main function of the oil resistance agent is to prevent oily substances from adhering to or penetrating the surface of the material. It reduces the adsorption of oil by changing the chemical properties of the surface of the material to make it oleophobic. Oil resistant agents are widely used in textile, packaging and food processing fields, such as in the production of oil-proof paper or oil-proof cloth, oil resistant agents can effectively extend the service life of the material and keep it clean.

Wetting agents are mainly used to reduce the surface tension of the liquid, making it easier to spread and penetrate the solid surface. It enhances the wetting effect by enhancing the interaction between liquid and solid. Wetting agents are often used in coatings, pesticides, cosmetics and other industries, such as adding wetting agents to paint can make the coating more uniform, or using wetting agents in pesticides can improve the adhesion effect of the liquid on the surface of the plant.

In general, oil repellents focus on preventing the effects of oily substances, while wetting agents focus on improving the spreading and permeation properties of liquids. The choice of the two depends on the specific use needs and material characteristics.