The difference between silicone defoamers and non-silicon defoamers
First, the silicone defoamer:
Silicone defoamer by the silicone grease, emulsifier, waterproofing agent, thickener, etc. with the right amount of water by mechanical emulsification. It is characterized by small surface tension, high surface activity, strong defoaming force, with less, low cost. It is immiscible with water and most organic matter, and can defoish most of the bubble medium. It has good thermal stability, can be -5 ℃ ~ -150 ℃ wide temperature range; its chemical stability is better, difficult to react with other substances, as long as the appropriate configuration can be in acid, alkali, salt solution In the use of non-destructive product quality; it also has a physical inertia, usually used in food and pharmaceutical industry. It has all the bubble system with a bubble suppression, foam function, under the broad-spectrum defoamer category. It is widely used in detergent, paper, pulp, sugar, electroplating, fertilizer, additives, waste water treatment and other production process defoaming.
Second, the introduction of non-silicone defoamer:
Non-silicone defoamer is a slightly yellow white liquid composition, the PH value of 7 or so. Defoaming effect is extremely obvious. Non-silicone defoamers are polyether, alcohols, hydrocarbons, and so on. The advantage of non-silicone defoamers is the ability to rapidly penetrate the interior of the foam and spread rapidly. Can eliminate a variety of intractable foam, in the case of high temperature to stabilize defoaming. And does not leave silicon spots. good results.
Non-Silicone Defoamer Features:
Non-silicone defoamer is the introduction of imported technology, its composition is completely free of silicone. So no residue of silicon spots. Add to water-based ink, ink, paint, glue does not cause problems with the product. Especially for PCB circuit board production, sewage treatment industry, etc. are of great help.
Third, the use of non-silicone defoamers:
1. Modulate according to different foam systems. Recommended in the range of about 0.4 to 0.5 percent.
2. Mix with water or working solution or add directly.
3. Only in water systems below 100 degrees Celsius.
4. Use to stir.