The difference between silicone defoamers and non-silicone defoamers


Defoamer, as the name suggests, is an additive to eliminate foam. It is often used to eliminate harmful foam generated in industrial production. There are many types of defoamers, mainly divided into silicone defoamers and non-silicone defoamers. What's the difference between the diameter of the user? Let's take a look at the editor from the silicone manufacturer below.


1. Silicone defoamer:


Silicone defoamer is made of silicone grease, emulsifier, waterproofing agent, thickening agent, etc., with appropriate amount of water and mechanically emulsified. It is characterized by low surface tension, high surface activity, strong defoaming power, low dosage and low cost. It is immiscible with water and most organic matter, and can defoam most bubble media. It has good thermal stability and can be used in a wide temperature range of -5℃~-150℃; it has good chemical stability and is difficult to react with other substances. As long as it is properly configured, it can be used in acid, alkali, and salt solutions. It is used in medium without compromising the quality of the product; it is also physiologically inert and is usually used in the food and pharmaceutical industries. It has the functions of suppressing and breaking bubbles for all bubble systems, and belongs to the category of broad-spectrum defoamers. It is widely used for defoaming in the production process of detergents, papermaking, pulp, sugar, electroplating, fertilizers, additives, and wastewater treatment.


2. Introduction of non-silicon defoamer:


Non-silicon defoamer is a beige and yellowish liquid component with a PH value of about 7. The effect of defoaming rate is extremely obvious. Non-silicon defoamers are processed from polyethers, alcohols, hydrocarbons, etc. The advantage of non-silicone defoamers is that they can quickly penetrate the inside of the foam and diffuse quickly. It can eliminate a variety of stubborn foams and stabilize defoaming at high temperatures. And there will be no residual silicon spots. good results.


Features of non-silicon defoamer:


The non-silicon defoamer is produced by the introduction of imported technology, and its ingredients are completely free of silicone. So there will be no residual silicon spots. Adding to water-based inks, inks, paints, glues will not cause product problems. It is especially helpful for the production of PCB circuit boards and the sewage treatment industry.


3. How to use non-silicon defoamer:


1. Modulate according to different foam systems. The recommended range is about 0.4 to 0.5 percent.


2. Stir evenly with water or working fluid or add directly.


3. It can only be used in water systems below 100 degrees Celsius.


4. Stir well when using.