Frequently Asked Questions When Using Silicone Defoamers
The problem of foam is unavoidable in industrial production, but it is not an unsolvable problem. The addition of defoamers can be used to eliminate harmful foams in the production process. However, when using antifoam, many people will have different types of problems. The following is an example of silicone defoamer. It summarizes some common problems when using silicone antifoams. I hope you have Helped.
Problem 1: Silicone defoaming agent appears turbid
In the process of using silicone defoamer, it is usually not dissolved in the system, and is generally suspended in the system. Therefore, the amount and color of the selected hydrophobic particles, silicone oil and hydrophobic particles become silicone anti-foaming agent. Whether it can play the key to excellent defoaming effect.
Problem 2: Anti-foaming time of silicone antifoam
Determining the antifoaming performance of silicone defoamers depends mainly on the properties of the silicone oil. The amount of silicone oil determines the length of time the silicone antifoaming agent is used in the system.
Problem 3: Elimination and anti-foaming effect of silicone antifoams
The defoaming effect of silicone defoamer agent depends not only on its own characteristics, but also on the method and amount of use. For example, the particle size of the antifoam determines the filter resistance of the anti-foaming agent. If the particle size is too large or the defoaming agent is not sufficiently stirred, the defoamer may be filtered out, especially in sewage treatment. Filtering many times, if the antifoaming agent is filtered out, it will have an effect on anti-foaming agent and foam suppression.
Problem 4: Failure of silicone antifoams
There are many reasons for the failure of silicone defoamer chemical. For example: 1 The acidity and alkalinity of the system will affect the stability of the emulsion. If the acid and alkali resistance of the silicone defoamer is not good, the silicone oil will be decomposed, thus making Silicone emulsion fails; 2 certain chemical components in the system promote the dissolution of silicone oil into the system, which also makes the silicone anti foaming agent no longer have the effect of defoaming, and in the presence of surfactants, Will promote the generation and increase of foam in the system.