Application and selection of defoamer
In industrial production, “foam” is a common and headache phenomenon. It may appear in the paint emulsion mixing process, the surface of the water treatment tank, the edge of the formwork of the concrete pouring, and even in the i papermaking, pulping, power plant desulfurization, fermentation, industrial cleaning and other aspects of the process, there may be because of excessive foam and affect the quality of the product, the efficiency of the process and the operation of the equipment.
At this time, “defoamer” becomes the key to solve the problem.
What is defoamer?
Defoamer is a kind of chemical additives that can inhibit and eliminate foam. The mechanism of action of defoamer mainly includes: destabilizing the structure of the foam, reducing surface tension, accelerating bubble bursting and so on.
Defoamer is usually added to the production system in the form of liquids or emulsions, and although the dosage is small, the role is crucial.
What are the dangers of blistering?
In many people's opinion, foam seems to “look quite clean and normal”, but in the industrial system, foam often means trouble and even hidden dangers:
Affect the quality of products: such as paper, paint, ink, adhesive, concrete surface bubbles, drying depression, pinhole
Reduce production efficiency: Foam will increase the mixing resistance, reduce filling efficiency, extend the drying time
Impact on measurement and packaging: Foam is easy to cause volume expansion, affecting the accurate measurement
Lead to equipment failure: Foam clogging pipelines, pumps, sensors, increase maintenance costs
Environmental and safety hazards: in the wastewater treatment: Foam overflows to affect the normal operation, and even produce a bad smell or pollution
Classification of defoamer
Defoamer can be categorized according to the main components and applicable systems:
| Type | Features | Applications |
| Silicone defoamer | Fast defoaming, good dispersion, wide range | Sewage treatment, oil and gas purification, oil extraction, industrial cleaning,papermaking |
| Polyether defoamer | Stable for use in high temperature systems | High-temperature evaporation and concentration, fermentation system, RO membrane water treatment system,paper pulp |
| Fatty alcohol defoamer | Silicone-free, stable defoaming under strong alkali and high temperature | Suitable for paper machines |
| Powder defoamer | Use in dry or powdered products | Building materials dry-mixed mortar, gypsum products |
About RISE CHEMICAL
As a defoamer supplier with 20 years' experience, we can customize defoamer solutions according to customers' needs!
We support to provide: free samples, TDS technical parameter table, MSDS safety instructions, factory inspection report and good technical service support.
