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Surfactants can be divided into non-ionic surfactants, anionic surfactants, cationic surfactants and zwitterionic surfactants according to whether they can dissociate in aqueous solution and the type of charge they carry after dissociation.

non-ionic surface active agent A surfactant that does not produce ions in an aqueous solution. Its dissolution in water is due to the fact that it has a strong affinity for water.

Non-ionic surfactants have higher emulsification ability and a certain resistance to hard water compared with anionic types, and are indispensable ingredients in the formulation of cleaning agents and emulsifiers. Of course, compared with anionic surfactants, non-ionic surfactants also have some defects, such as turbidity point limitation, alkali resistance, and higher price.

Most of the non-ionic surfactants are in liquid and slurry states, and their solubility in water decreases with increasing temperature. Non-ionic surfactants have good properties of washing, dispersing, emulsifying, wetting, solutizing, even dyeing, anti-corrosion, and protection of colloid, etc., and are widely used in textile, paper, food, plastics, leather, fur, glass, petroleum, chemical fiber, paint, dye, film, photography, metal processing, mineral processing, building materials, environmental protection and agriculture.