Silicone defoamer is a commonly used defoamer that has many advantages, including:
1. High efficiency: Silicone defoamer can defoam quickly and has excellent defoaming effect on a variety of foam systems.
2. Stability: Silicone defoamer has good stability and is not easily affected by environmental factors such as temperature and humidity.
3. Wide range of applications: The special chemical structure of silicone oil makes it not miscible with water or substances containing polar groups, nor with hydrocarbons or organic matter containing hydrocarbon groups. Due to the insolubility of silicone oil to various substances, it has a wide range of applications, which can be used for both defoaming in water system and oil system.
4. Small surface tension: The surface capacity of silicone oil is generally 20-21 dynes/cm, which is smaller than that of water (72 dynes/cm) and general foaming liquid, and the defoaming effect is good.
5. Good thermal stability: the commonly used dimethicone oil can withstand 150 °C for a long time and more than 300 °C for a short time, and its Si-O bond does not decompose, ensuring that the silicone defoamer can be used in a wide range of temperatures.
6. Good chemical stability: Since the Si-O bond is relatively stable, the chemical stability of silicone oil is very high, and it is difficult to react with other substances.
7. Low toxicity: In general, silicone defoamers have no obvious toxic effect on the human body and the environment.
8. Good compatibility: Silicone defoamers have good compatibility with most chemicals and can be safely used in a variety of formulations. 9. No pollution: Silicone defoamer is an environmentally friendly defoamer and will not cause pollution to the environment.
10. High durability: Silicone defoamers are highly durable and can maintain their defoaming properties for a longer period of time.
In summary, silicon defoamer has the advantages of high efficiency, stability, wide application, low surface tension, good thermal stability, good chemical stability, low toxicity, good compatibility, no pollution and strong durability. It is a very useful defoamer in many industrial sectors.
