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
  • Role And Types of Surfactants

    Role And Types of Surfactants

    March 4, 2021Surfactants are chemical substances that have a wide range of applications in different industries and are an important part of many of the products we use on a daily basis. They can be defined as sub...view
  • The Development of New Surfactants Will Be a Trend

    The Development of New Surfactants Will Be a Trend

    March 4, 2021With the growth of the global population and the consumption of non-renewable resources, more attention and rapid development will be paid to the production of surfactants with excellent performance a...view
  • Team Building @ Laoshan National Forest Park

    Team Building @ Laoshan National Forest Park

    January 31, 2018In the golden month of October when Osmanthus are in bloom, we set out for the Laoshan National Forest Park, which is renowned as the “Green Lung of Nanjing, Bright Pearl of Northern Yangtze River”....view
  • Methyl Iodide Used in Pharmaceuticals

    Methyl Iodide Used in Pharmaceuticals

    April 15, 2020Iodomethane (Methyl iodide) is a colorless liquid. It can be prepared by reacting dimethyl sulfate with concentrated KI.view
  • 2-acetyl thiazole

    2-acetyl thiazole

    July 20, 20212-acetyl thiazole is an oily liquid with aromas like popcorn, tortillas, tortillas, and bread. The melting point is 65°C, the boiling point is 95-105°C (2000Pa), and the flash point is 78°C. The re...view
  • 2-Methylbutanoic Acid

    2-Methylbutanoic Acid

    September 23, 20212-Methylbutanoic acid, is a branched-chain alkyl carboxylic acid, it is also known as 2-methylbutyric acid. Itschemical formulaisCH₃CH₂CHCO₂H,which makes ita short-chain fatty acid. Racemic 2-methy...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