Name：Anion surfactant

A class of surfactants. It can generate hydrophobic anion in water. For example, soap can generate anion r-COO with long chain fatty acid group in water, mainly soap, sodium alkyl sulfonate, sodium alkyl aryl sulfonate, sodium alkyl sulfate, sodium secondary alkyl sulfate, etc. Commonly used as detergents, wetting agents, emulsifiers and dispersants. Commonly used as detergent, wetting agent, emulsifier and dispersant. Can not be used with cationic surfactants, because in the aqueous solution will generate precipitation and lose effectiveness. However, it can be used together with nonionic surfactants.

Application

Anionic surfactants have many advantages such as mature production process, easy availability of raw materials and wide range of application. Therefore, they are widely used in agriculture, industrial cleaning, textile printing and dyeing, daily-use chemicals and many other fields.

1、Agriculture

The use of anionic and nonionic complexes as pesticide emulsifiers can make the amount of emulsifier from 20% to 40% down to 3% to 10%. This is conducive to improving the chemical stability of pesticides, while reducing costs, reducing pollution and improving the utilization of efficacy. In addition, in pesticides, rust removers, plant growth regulators often add alkylbenzene sulfonate, lignosulfonate, etc. as emulsifiers and wetting agents, which can be used to improve the soil.

2、Construction industry

In construction paint, surfactants mainly play the role of wetting, emulsifying, dispersing, stabilizing and antistatic.

3、Cosmetic industry

The application of anionic surfactants in cosmetics is becoming more and more extensive, and their main role is to act as emulsifiers, solubilizers, wetting agents and effective component synergists. The most important consideration for the wide application of anionic surfactants in this field is their safety in pharmacology and toxicology.

4、Oil industry

Surfactants play an important role in the chemical oil drive process, it can reduce the oil / water interfacial tension, increase the number of capillary, thereby significantly increasing the recovery of crude oil.

5、Textile industry

Many processes in the textile printing and dyeing industry need to use a large number of surfactants. For example, in the pretreatment process will be used in a large number of cleaning anionic surfactants, in the dyeing and finishing process will be used to penetrate the role of anionic surfactants. In addition, some functional products such as leveling agent, color-fixing agent, etc., some of the structure is also anionic type.

6、Daily chemical industry

Anionic surfactants in daily-use chemicals in the application of more, the most common soap that is anionic surfactants, its main component is sodium stearate. Anionic products have high and fine foam, lower prices and other characteristics, can reduce the cost of laundry detergent, detergent and other products, and can improve product transparency.