How to choose thickener for defoamer
In actual applications, in most water-based defoamers in the industry, a small amount of thickener will be added to stabilize the emulsion. So what kind of thickener should be selected in the defoamer?
1. You should choose a thickener with good stability. Some thickeners have good thickening effect at the time. But after a period of time, it will liquefy, and the result is that water is water and emulsion is emulsion, which is what we often call stratification or demulsification, which seriously affects the quality of the defoamer.
2. Choose a thickener that is easy to use. Some thickeners are extremely difficult to use. They need to be added to water according to the amount and dissolved for a long time before they can be used. It wastes time. Some need to be stirred for a long time with a high-speed disperser to have a good uniform thickening effect. Some powder thickeners are not stirred well. There will be a clustering phenomenon, which seriously affects the quality of the product. Therefore, it is best to choose a thickener that is easy to use and quickly dissolves and thickens.
3. According to industry experts engaged in the research and development and production of polyether defoamers, it is necessary to choose a thickener with stable quality. The quality of some thickeners themselves is very unstable, and a batch may thicken very well. A batch may be very different, which will seriously affect the quality of the product when used.
4. Choose a thickener with low use cost. Some thickeners are very cheap, but the amount added is large, so the cost of use is high. Some thickeners are more expensive, but the amount added is small and the effect is good. On the contrary, the cost of use is reduced a lot.
5. There is no best thickener, only the most suitable one. To choose the thickener that is most suitable for your product, with the best effect, the lowest cost of use, and the most convenient to use, you must make a small test before confirming.
6. Do not choose the most expensive or the cheapest, only choose the most suitable thickener to help our water-based defoamer thicken, thereby improving the stability, appearance, and quality of the defoamer.
