Surface-active agent is a class of chemicals, also known as the Surface-Active Agent, which mainly involves adsorption and arrangement of molecules on the liquid interface.
The principle of action is as follows:
Reduce interface tension: One of the main role of surfactant is to reduce the tension of liquid interface. There is a certain interaction force between the molecules on the liquid interface, which leads to a certain tension on the surface of the liquid. Surface active agent molecules can form a adsorption layer on the liquid interface. Due to the special nature of its molecular structure, it can destroy or weaken the interactive force between liquid molecules, which reduces the tension of the interface.
Improving moisture: Surface active agents can improve the moisture of liquid on the solid surface. When liquid contacts with solids, if the liquid cannot be fully contacted and expanded with the solid surface, water droplets or droplets will be formed. The presence of surfactants can improve the spread of liquid on the solid surface, making it easier to expand and cover the entire surface.
Diversified and emulsifier: Surface active agents can also be decentralized and emulsified into substances in liquid. Due to the special properties of the molecular structure of the surfactant, they can build a stable interface layer between water and oil, wrap the insoluble substance in it to form a beam structure. This effect enables oil, lipids or other non -polar substances to be suspended in water, thereby achieving decentralization and emulsification.
Reduce foam and anti -bubbles: Surface active agents also have the effects of reducing the internal bubbles of the liquid and inhibiting foam production. They can reduce the surface tension of the gas on the surface of the gas liquid, make the bubbles more easily ruptured and dissipated, thereby reducing the production and continuous existence of foam.
It should be noted that different types of surfactants have different mechanisms and characteristics. According to specific application requirements, choose the appropriate surfactant for use. When using the surface active agent, you need to understand the method and precautions of its usage, and follow the appropriate amount of usage and related safety operating procedures.