The development of defoamer can be traced back to the early 20th century, when substances such as natural rosin and stearic acid were mainly used. With the development of chemical industry, people began to use synthetic defoamer, such as silicone oil, polyvinyl alcohol, polysiloxane and so on. These synthetic defoamer have better performance and stability, and gradually replace the position of natural defoamer.

In the future, the development trend of defoamer mainly includes the following aspects:

1. Greening: With the improvement of environmental awareness, people have higher and higher requirements for the greening of antifoaming agents. The future defoamer will be more environmentally friendly and reduce pollution to the environment.

2. Efficiency: The defoamer of the future will be more efficient and able to function over a wider range of temperatures, pressures and pH values, while having less impact on the liquid.

3. Versatility: The future defoamer will be more versatile, not only to reduce the number of bubbles, but also to adjust the viscosity, rheology and other properties of the liquid.

4. Application field expansion: The future defoamer will be applied in more fields, such as energy, electronics, construction and other fields.