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What precautions should be taken when using silicone-based defoamers?
Release Date:
2020-11-25
Silicone defoamers deliver rapid defoaming and foam‑suppressing performance; for instance, some formulations can quickly eliminate foam but fail to provide lasting foam inhibition, while others may not achieve the same speed of defoaming yet offer excellent foam‑suppressing properties. Therefore, you should select an appropriate silicone defoamer by considering both your foaming system and your specific requirements.
Silicone defoamer It exhibits both rapid defoaming and foam‑suppressing effects; for example, some products can quickly eliminate foam but fail to provide lasting foam suppression, while others may not defoam as swiftly yet offer excellent foam‑stabilizing performance. Therefore, you should select an appropriate silicone‑based defoamer by considering your specific foaming system and application requirements.
Different industries have varying requirements for the silicone‑based defoamers they use. For example, some sectors demand products that withstand high temperatures, strong acids, or strong alkalis; others prioritize rapid defoaming, while still others seek long‑lasting foam suppression. Therefore, it is essential to clearly identify your specific needs.
Among defoamer formulations, silicone-based products exhibit excellent chemical stability and are resistant to reactions with other substances. With proper formulation, they can be used in acidic, alkaline, and saline solutions, making them widely employed for defoaming and foam suppression in processes such as printed circuit board cleaning, textile printing and dyeing, paper pulp production, electroplating, auxiliary agent applications, and industrial wastewater treatment.
Silicone defoamer Precautions for Use
1. Before use or sampling, thoroughly stir the emulsion.
II. Although oil-in-water emulsions can be diluted to any extent, their stability will decline sharply as a result, potentially leading to phase separation. Therefore, when diluting, add water to the defoamer while stirring slowly. It is also advisable to incorporate a thickener to enhance stability.
3. Since the emulsion exhibits optimal stability at its original concentration, the diluted emulsion must be used up within a short period.
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