Briefly describe the classification of surfactants

Surface active agents can be classified in accordance with its ionic properties, hydrophilicity and hydrophobicity, as well as a variety of methods such as molecular structure. The following is a common surfactant classification:
Ion surface active agent:
Catalogenic surfactant: Surface active agent with positive charge, such as hexisanelxyl tritamodium ammonium salt. Commonly used in detergents and disinfectants.
Activant surfactant: there are surfactants with negative charge, such as sulfate, sulfonate, and alkylzhenylsulfonate. Widely used in detergents, cleaning agents and foam.
Non -ion surface active agent: surface active agent without charge, such as polyoxyethylene, lipidol, ether. Commonly used for soft agents, emulsifiers and stabilizers.
The hydrophilicity and hydrophobicity of non -ion surfactants:
Polyte oxygenne types: strong hydrophilicity, often expressed as EO, such as polyoxyethylene, Ceteareth.
Polyethylene type: Moderate hydrophilicity, often expressed as a PO, such as polyoxy acrylics, Ceteth.
Polyte oxygenne/polyoxy acrylic type: combined with hydrophilicity and hydrophobicity, the proportion is adjusted, such as Ceteareth-8 (Ceteareth-8).
Molecular structure classification:
Alkylzide sulfonate: surfactants containing phenyl ring and alkyl chain, such as sodium viralnzenezate.
Alkyl sulfate: Surface active agents containing sulfate and alkyl chains, such as sodium dulate sulfate.
Alkyl ether sulfate: surfactants containing sulfate, alkyl chain, and oxidation compounds, such as sodium alkane polyoxide sulfate (SLS).
In addition, more detailed classification can be carried out according to the field of application and molecular weight. Different types of surfactants have different characteristics and application scope. Choosing a suitable type of surfactant can realize the required surface activity and functional performance.