Several Classifications Of Water-based Wetting Agents

Waterborne wetting agent refers to a wetting agent used in water-based coating systems. They are generally classified according to their uses and are divided into substrate wetting agents and wetting dispersants. Today I would like to share with you another classification situation.
This classification criterion is based on molecular structure. According to molecular structure, wetting agents can be roughly divided into three categories: hydrocarbon chains, alkyne alcohols or alkyne alcohol modified polyols, and organosilicon.

Hydrocarbon chains
The first type is ordinary hydrocarbon chains, which are a type of polymer structure - alkylphenol polyoxyethylene ether polymer structure, and are typical surfactants. One end is a hydrophilic group, and the other end is a hydrophobic group. Hydrophilic groups infiltrate the water, while hydrophobic groups suspend outside the water to form a directional arrangement. Generally used for wetting pigments and fillers.

Polyols
The structure formed by two hydrophilic groups and multiple hydrophobic groups can effectively reduce the static and dynamic surface tension of the system. Commonly used for wetting substrates, it belongs to the category of substrate wetting agents.

Organosilicons
It has a good effect on reducing the surface tension of the system, but special attention should be paid when using it. Some systems are not suitable for using products containing silicon.
At this point, the classification of water-based wetting agents has come to an end. Water based wetting agents play a good role as additives in the application of water-based coatings, but the internal functional groups of these additives are also very different. Wetting agents with different structures have different characteristics and usage categories, which are different from coatings. The degree of matching of the system also varies. Only by selecting the appropriate product according to your needs can better results be achieved.