Defoamer for concrete is a chemical additive specially designed to eliminate or inhibit foam and bubbles generated during concrete mixing, transportation, pouring and curing. If these foam and bubbles are not eliminated in time, the strength, compactness and appearance quality of concrete will be affected. Defoamers can quickly and effectively eliminate foam in concrete by reducing the surface tension of the liquid, destroying the stability of foam film or increasing the drainage speed of foam liquid film. Its mechanism of action involves various physical and chemical processes such as chemical adsorption, diffusion, and permeation.

There are various types of defoamers used in concrete, which can be divided into organic silicon, polyether, mineral oil, fatty acid, etc. according to their composition; It can be divided into internal and external types according to its usage. Different types of defoamers have different characteristics and applicable ranges.

With the continuous advancement of global infrastructure construction and the rapid development of the construction industry, the market demand for defoamers for concrete continues to grow. Especially in the fields of large-scale engineering, high-performance concrete, and prefabricated components, the performance requirements for defoamers are more stringent, driving the market towards high-end and specialized development.

With the tightening of environmental regulations and the improvement of consumer environmental awareness, green and environmentally friendly defoamers will become the mainstream in the market. Performance improvement, efficient, broad-spectrum, low dosage, and long-lasting defoamer products are more popular in the market. Customized services, providing customized solutions based on different application scenarios and customer needs, will become a new trend in market competition.

The application of new materials and processes has promoted the technological innovation of defoamers for concrete. For example, the application of nanotechnology has improved the dispersibility and stability of defoamers; The introduction of bio based raw materials reduces the toxicity and pollution of the product.