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What are the differences between various additives in the coating industry?

 Last Update: 2021-09-03
 Source: Internet
 Author: User

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Anyone who knows the coatings industry knows that in various coating additives: wetting agents and dispersing agents are all surfactants, so sometimes it is difficult for people to tell the difference between the two, and because some additives now Wetting and dispersing functions, some products are named wetting and dispersing agents, which makes it more difficult for people to distinguish between them

Aqueous wetting agents generally refer to the spreading of liquids on solid surfaces

Secondly, the molecular structures of wetting agents and dispersing agents are also different

The molecular weight of the wetting agent is small, and the small molecular weight makes it easier to migrate and can reduce the surface tension of the pigment

The molecular weight of the dispersant is large, and the large molecular weight can provide good steric hindrance, prevent the flocculation of the pigment, and keep the dispersion system in a stable state

Both dispersant and wetting agent are indispensable additives for coating products.

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