With the increasingly strict global environmental regulations and the green transformation of the manufacturing industry, metal processing fluid defoamers are also facing new requirements such as no silicification, low volatile organic compounds, and biodegradability. In recent years, countries have continuously raised their environmental requirements for industrial chemicals, which directly affects the future market trends of metalworking fluids and their additives.

Nowadays, traditional organosilicon and mineral oil-based defoamers have gradually been replaced by more environmentally friendly alternatives. So, under the trend of environmental protection, metal processing fluid defoamers are also moving towards more environmentally friendly defoamers. However, the balance of performance and cost pressure of metal processing fluid defoamers is currently a major challenge faced by many enterprises. The stability of environmentally friendly defoamers is insufficient in high temperature and high alkali environments, and the cost of bio based products is 2-3 times that of traditional products. Therefore, how to solve this problem has become the focus of current work on defoamers for metalworking fluids.

With the development of science and technology, composite environmentally friendly defoamers have effectively solved this problem. Composite environmentally friendly defoamers combine multiple environmentally friendly ingredients (such as polyether+vegetable oil) to enhance overall performance. By combining sensors and automatic control systems, on-demand defoaming is achieved, reducing the amount of additives used and effectively lowering production costs. The trend of environmental protection is irreversible, and the future metal processing fluid defoamer industry needs to find a balance between technology, cost, and compliance in order to achieve sustainable development in the future.