Method of testing the quality of defoamer

Antifoaming agent is a material additive that can reduce the surface tension of water, solution, suspension, etc., prevent foam formation, or reduce or eliminate the original foam. So most water-based paint manufacturers will use defoamers, but when choosing defoamers, you need to consider quality issues. The editor of Hohuan Chemical will talk about how to choose a good water-based defoamer suitable for your own products.

Look at the compatibility of defoamers. After adding the defoamer to the product, stir to observe the speed of the compatibility, and observe whether the compatibility is good or not, and the poor compatibility will affect the product.

Secondly, look at the anti-foam time of the defoamer. As a defoamer, good defoaming and anti-foaming properties are necessary and one of the basic requirements. We can add the same amount of water-based defoamer to the same foaming system to observe its defoaming speed and foam suppression time to judge the quality of the water-based defoamer.

Then look at the defoaming effect. After adding the defoamer, observe the defoaming speed. In the case of the same addition amount, the faster the defoaming speed, the better.

Later, see if the defoamer affects the quality of the product. We can use experiments to see whether the water-based defoamer will affect the system products. If it does not affect the system products, then we can judge that the quality of the water-based defoamer is not a problem in this respect.

The above are some common methods for intuitively testing the quality of defoamers. I hope to help some customers and friends who use defoamers a good solution. At the same time, in addition to defoamers, there are also dispersants and wetting agents. Pingji and other additives also have their own detection methods, although they are similar, but if you want to know more about it, you still need to consult relevant technical personnel to better choose your own suitable additives.