Nanjing Chemical Material Corp.
Service
Products

An Overview of Amphoteric Surfactant An Overview of Amphoteric Surfactant

The amphoteric surfactant is a surfactant that contains both anionic and cationic hydrophilic groups in the same molecule. Its biggest feature is that it can both give protons and accept protons. In the process of use, it has the following characteristics: excellent softness, smoothness and antistatic properties to the fabric; certain sterilization and mildew resistance; good emulsification and dispersion.


The amphoteric surfactant molecule is different from a single anionic or cationic type. There are both acidic and basic groups at one end of the molecule. Acidic groups are mostly carboxyl, sulfonic or phosphoric acid groups, while basic groups are amine or quaternary ammonium groups, which can be mixed with the anionic and nonionic surfactant, and are resistant to acids, alkalis, salts and alkaline earth metal salts.


The commonly used synthetic amphoteric surfactants now have mostly carboxylic acid groups and a few sulfonic acid groups. The cationic part is mostly amine salt or quaternary amine salt. The cationic part composed of amine salt is called amino acid type; the cationic part composed of quaternary amine salt is called betaine type.


Amphoteric surfactant usually has good washing, dispersing, emulsifying, sterilizing, softening fibers and antistatic properties. They can be used as textile finishing auxiliaries, dyeing auxiliaries, calcium soap dispersants, dry cleaning surfactants and metal corrosion inhibitors. However, this type of surfactant is more expensive, and the actual application range is smaller than other types of surfactants.

Related News
  • Do You Know  about Sodium Dodecyl Sulfate?

    Do You Know about Sodium Dodecyl Sulfate?

    September 24, 2020Sodium dodecyl sulfate is a white to yellowish powder with a special slight smell. It is easily soluble in water, slightly soluble in ethanol, and almost insoluble in chloroform, ether and light petro...view
  • Application and Classification of Polyether Polyol

    Application and Classification of Polyether Polyol

    August 25, 2020Polyether polyol is mostly used to manufacture soft, hard and semi-rigid polyurethane foams. Polyether polyol is not only easy to obtain raw materials with low cost, but also hold good properties of ...view
  • 79th API China

    79th API China

    January 31, 2018November 15-17, 2017Xiamen International Convention and Exhibition CenterAPI China is China's leading exhibition for the pharmaceutical manufacturing sector covering the complete spectrum of products ...view
  • What Is The Active Diluent Of Epoxy Resin?

    What Is The Active Diluent Of Epoxy Resin?

    August 6, 2019The active diluent of epoxy resin is a kind of epoxy compound with small molecular weight containing epoxy group.view
  • Use of Polyether Polyol

    Use of Polyether Polyol

    April 21, 2020Polyether polyol is abbreviated as polyether. It is an oligomer whose main chain contains ether bond (—R—O—R—) and the terminal group or side group contains more than 2 hydroxyl groups (—OH). It ...view
  • Introduction to DMC Catalyst

    Introduction to DMC Catalyst

    August 25, 2020The DMC catalyst has a freezing point of 4 ℃ and a boiling point of 90 ° C. It is a colorless transparent liquid with a slight aromatic smell at room temperature. It is easy to volatilize and has th...view
  • TEL:+86-25-52337978
  • EMAIL: info@njchm.com
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China