Surface Active Agent is a class of chemicals with a type of chemical that reduces surface tension, increases wetting and decentralized emulsification ability in the solution. Surface active agent molecules have hydrophilic heads and hydrophilic tail groups, enabling it to form molecular layers in water or other solvents, and adjust the nature of the interface.
According to the resolution of the surfactant in the water, it can be divided into the following categories:
Non -ion -type surfactants: Non -ionic surfactants do not have ionization in water. The molecules contain non -polar or micro -polar groups, such as fatty glycol polyoxyethylene ether, fatty alcohol polyoxide, etc.
Poton -type surfactant: Poton -type surfactants can achieve surface activity effects by release negative ions in the water. The molecules contain negative charge groups, such as sodium dulate sulfate (SDS), sodium lamb.
Cattea type surfactant: Cattera -type surfactant agent in the water to achieve the surface activity effect by release positive ion. The molecule contains a positive charged group, such as hexxanel trisopramium bromide.
Emery -type surfactant: Elected ion -type surfactant is a surfactant with anion and cations at the same time. The molecules contain positive and negative ion base groups, such as hexxane milinoblium chloride.
Ion -type surfactant mixture: Mixed with two or more different types of surfactants to achieve specific functions and performance, such as yin and yang ion mixed surface active agents.
It should be noted that different types of surfactants have their own advantages and applicability in different application areas. Choosing appropriate surfactants should be evaluated and selected according to specific needs.