Common problems of organosilicon defoamer
Bubble problem is inevitable in industrial production, but it is also not an unsolved problem. It can be used to eliminate harmful foam in the production process by adding silicone defoamer. However, when using defoamers, many people will have different types of problems to varying degrees:
Problem 1: Silicone defoamer appears turbid phenomenon
Organosilicon defoamers usually do not exist in the system in the dissolved state in the process of use, but are generally suspended in the system. Therefore, the amount and color of hydrophobic particles, silicone oil and hydrophobic particles selected become the key to the excellent defoaming effect of organosilicon defoamers.
Question 2: Antifoaming time of organosilicon defoamer
The anti-foaming performance of organosilicon defoamer depends mainly on the properties of silicone oil, and the amount of silicone oil determines the length of the use of organosilicon defoamer in the system.
Question 3: Antifoaming and Antifoaming Effects of Silicone Defoamers
The defoaming effect of organosilicon defoamer depends not only on its own characteristics, but also on its usage and dosage. For example, the size of defoamers determines the filter resistance of defoamers. If the size of defoamers is too large or the stirring of defoamers is insufficient, it may lead to defoamers being filtered out. Especially in sewage treatment, defoamers will be filtered many times. If the defoamers are filtered out, it will have an impact on defoaming and anti-foaming.
Question 4: Failure of Silicone Defoamer
There are many reasons for the failure of organosilicon defoamers, such as: (1) the acidity and alkalinity of the system will affect the stability of defoamers, if the acidity and alkalinity of organosilicon defoamers are not good, it will lead to the decomposition of silicone oil, which will lead to the failure of organosilicon defoamers; and (2) some chemical components in the system will promote the dissolution of silicone oil into the system, which will also make the organosilicon def The action of bubbles and the presence of surfactant in the system will promote the generation and increase of foam in the system.