What problems can be avoided by adding water-based defoamers to coatings
Different types of coatings are very effective in real life, especially in the decoration industry. However, in actual coating production, if some bubbles are not properly handled, it is very likely to affect the performance of the product. The following industry experts will give you a detailed introduction to the benefits of adding water-based defoamers to coatings.
According to experts who specialize in the research and development and production of defoamer products, defoamers can eliminate and suppress harmful foams, reduce the local tension on the surface of the foam, and the reduced local tension of the foam will cause bubbles to burst due to traction. Destroy the elasticity of the film, the defoamer is sprinkled on the foam and spreads rapidly, making it difficult to restore the elasticity of the film and thus bursting the bubbles. Make the foam drain, the defoamer can quickly drain the foam and eliminate the bubbles.
In addition, common defoamer products can also attract surfactants, add water-fixed particles, and eliminate bubbles. Solubilize or disintegrate the bubble activator, reduce the concentration and compactness of the surface bubble activator, and the foam stability damage will be eliminated.
When the product realizes the defoaming function, its two essential conditions are the penetration factor and the spreading factor. The role of the permeability factor is to ensure that the defoamer penetrates into the foam wall, and the spreading factor is to ensure that the defoamer can spread quickly in the foam medium.
Of course, there are also issues that need to be paid attention to when using water-based defoamers. The most important point is to fully stir them before use. Because a defoamer is usually composed of a variety of substances with different properties and functions, it is easy to stratify during transportation or storage. Therefore, in order to ensure the defoaming effect of the defoamer, we must stir it evenly before use.
We know that water-based defoamers are used in the production and construction of paints to eliminate the different hazards brought by foam to the product. Then, the problems that can be avoided by adding water-based defoamers to paints are mainly the following:
1. Foam will affect production progress and product output.
2. Too many bubbles are easy to lose production raw materials and increase production costs.
3. Foam will bring different degrees of defects to the finished coating.
4. Too many bubbles will hinder the normal production and smooth construction of paint.
Not only that, in the process of producing oil, because the chemical composition of oil is very special, a large number of oil bubbles will be produced during the production process, which is a toxic bubble. However, if these bubbles are dispersed into the air, they will cause great harm to our body. Therefore, defoaming agents must be added in such a production process to avoid the generation of toxic bubbles.
