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Oct 9, 2017
Surfactants range from a wide range (cation, anionic, nonionic and amphoteric) and provide a variety of functions for specific applications including foaming, surface modification, cleaning, emulsion, rheology, environmental and health protection.
Surfactants are used as performance additives in many industry formulations, such as personal and home care, as well as numerous industrial applications: metal processing, industrial cleaning, oil extraction, pesticides, and the like.
The traditional concept is that the surfactant is a class of substances that can significantly reduce the surface tension, even at very low concentrations. With the deepening of the study of surfactants, it is generally believed that substances of derived properties can be classified under the surfactant range as long as they can significantly alter the surface properties of the table or at the lower concentration.
No matter what kind of surfactant, its molecular structure consists of two parts. The end of the molecule is a non-lipophilic hydrophobic group, sometimes called a lipophilic group; the other end of the molecule is a hydrophilic hydrophilic hydrophilic group, sometimes referred to as an oleophobic group or imageally referred to as a hydrophilic head. Two different structures and properties of the opposite molecular fragments or groups at the ends of the same molecule and chemical bonds connected to form an asymmetric, polar structure, which gives the special molecules of both hydrophilic, And lipophilic, but not the overall hydrophilic or lipophilic characteristics. This unique structure of the surfactant is often referred to as the "parental structure" and the surfactant molecules are also often referred to as "parental molecules".