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Defoamers, a specialized type of functional additive, play an indispensable role in industrial production by destabilizing foam or inhibiting its formation.   The application of defoamers is particularly critical in the petrochemical industry.  Foam generated during the refining process can cause distillation tower flooding, seriously impacting production efficiency. Defoamers can maintain stable performance in high-temperature (above 150°C) and strong acid and alkaline environments (pH 2-12), increasing the processing capacity of catalytic cracking units by 20%.     The papermaking industry is a traditional application area for defoamers. During the pulping and papermaking processes, materials such as fibers and resins easily form stable foam, which affects product quality and production efficiency. Defoamers, through composite silicone and polyether modification technology, can reduce the foam half-life of black liquor from 5 minutes to less than 30 seconds.   The food processing industry has special requirements for defoamers. In fermentation processes, foam generated by microbial metabolism can reduce the effective volume of fermentation tanks and even cause overflow accidents. During the fermentation process of soy sauce, beer, and other products, adding 0.01-0.05% can control foam height without affecting microbial activity or product flavor. Specifically, in monosodium glutamate production, specialized defoamers can increase the fermentation tank filling factor from 70% to 85%, significantly improving equipment utilization.   Defoamers are increasingly used in water treatment. Foam generated during wastewater aeration can cover the tank surface, hindering oxygen transfer and observation. Our defoamer series offers the dual functions of rapid foam breakdown (<10 seconds) and long-lasting foam suppression (>8 hours), increasing oxygen utilization in aeration tanks by 25%.   The coatings and inks industry places specific demands on defoamers. Foam can cause defects such as pinholes and fisheyes in paint films, impacting product appearance and performance. Our defoamer series, through molecular structure design, achieves a balance between defoaming performance and coating compatibility. Experimental data shows that adding 0.1-0.3% defoamer can reduce surface defects in water-based coatings by over 95% without affecting the film's gloss or adhesion.   The pharmaceutical industry has extremely stringent requirements for defoamers. In processes such as antibiotic fermentation and vaccine production, defoamers must be both highly effective and biosafe. Our defoamer products are certified to USP, EP, and other pharmacopoeia standards. Cytotoxicity testing has shown that their impact on CHO cell viability is less than 5%.   Textile printing and dyeing is another important application area for defoamers. Foaming during high-temperature dyeing can cause color fringing and color shift. Our defoamer...

While foam is a well-known problem in waterproofing applications, persistent microfoam, which often compromises coating performance, is a more insidious threat. Specialized defoamers for waterproofing coatings are specifically designed to overcome the unique challenges of modern waterproofing coatings, providing unparalleled film integrity and long-term protection.   Waterproof coatings present a complex battlefield for formulators and applicators. High viscosity, demanding shear forces during mixing and application, complex polymer chemistries (including polyurethanes, acrylics, epoxies, and cementitious systems), and the critical need for flawless, pinhole-free films create an environment where conventional defoamers frequently fall short. Microfoam – tiny, stable bubbles invisible to the naked eye – can lead to pinholing, reduced barrier effectiveness, premature coating failure, and costly rework.     ANTIFOAM COMPANY waterproof coating defoamers deliver critical advantages: Microfoam Elimination: Superior air release eliminates microfoam, preventing pinhole formation and ensuring a continuous, defect-free barrier. High Shear Stability: Engineered to withstand the rigorous mixing, pumping, and application stresses typical of thick-film waterproofing products. Broad System Compatibility: Optimized variants for solvent-borne, high-solids, water-based, and cementitious waterproofing coatings prevent cratering, fisheyes, and fogging. Long-Term Film Integrity: Directly improves coating durability and waterproofing performance by eliminating weak spots caused by trapped bubbles. Process Efficiency: Reduces surface defects, minimizing application issues and costly repair downtime.   Why it matters: Microfoam is an invisible enemy that can compromise a coating's long-term waterproofing performance and lead to its failure. Our technology safeguards paint film integrity, directly improving coating durability and protecting critical infrastructure assets such as bridges, foundations, and reservoirs.   ANTIFOAM COMPANY develops customized defoaming strategies to ensure optimal results based on specific formulation and application requirements. We specialize in solving complex foam control challenges for demanding industries, providing innovative defoamers that improve product quality and process efficiency worldwide.

In industrial production, foam can cause cleaning equipment pumps to shut down, turn sewage treatment tanks into bubble baths, and even cause jam jars on food production lines to overflow.   High-efficiency industrial defoamers are the perfect superhero to deal with these troublesome situations. The Foam Buster in Industrial Cleaning   Imagine a giant metal part in a factory soaking in a foamy cleaning tank, making it difficult for workers to even see the edges. Add a few drops of polysiloxane defoamer, and the foam instantly shrinks like a balloon punctured by a needle. This defoamer works even on cleaning lines at 150°C and is 20 times more effective than traditional soapy water. One automobile manufacturer reported that their engine blocks, which previously required three changes of cleaning fluid, can now be cleaned with just one tank of water. The savings in utility bills are enough to cover the entire factory's high-temperature subsidy for six months.   The Invisible Security Guard of a Sewage Treatment Plant   There's nothing romantic about bubbling in a sewage tank. Last year, a chemical plant caused a scandal—the foam from its aeration tanks soared higher than an office building that a passing drone nearly got stuck in its propeller. Later, they added a defoamer containing a special organic fluorine. These foams, 100 times more stubborn than laundry detergent, collapsed within 30 seconds. The principle is fascinating: the defoamer molecules act like tiny magnets, sucking away all the surfactants from the foam film. The foam collapses like a tent stripped of its frame. Many wastewater treatment plants have learned their lesson and are now adding defoamers to the water intake in advance. These non-silicone products use only one-tenth the dosage of the old formula, but their long-lasting effect is like coating the water surface with an anti-foaming film. Safety Stewards on the Food Line   Food plants fear two things most: foam affecting filling accuracy and chemical residues causing foodborne illness. Bio-fermentation-based defoamers are particularly effective—they use natural proteins metabolized by yeast to break up the foam. Adding them to the defoamer removes the foam layer produced during soy sauce making like an invisible vacuum cleaner, leaving no odor. A yogurt factory conducted a comparative test and found that when using a traditional defoamer, 3% of the fruit yogurt overflowed after each batch. After switching to a food-grade defoamer, strawberry pieces on the production line were no longer pushed out of the jars by the foam. The raw materials saved each year are enough to make 150,000 cups of new product samples.   Why is choosing the right defoamer like choosing an air conditioner?   Choosing a defoamer is like buying an air conditioner—more expensive isn't always better; it depends on the application. For example, paper mills use defoaming resins because they can withsta...

As paper mills embrace diverse, sustainable fibers like bamboo, bagasse, hemp, and agricultural residues, traditional defoamers often struggle with the unique foam they generate.      Why Standard Defoamers Fall Short: Alternative fibers contain higher levels of natural surfactants, starches, and resins compared to wood pulp. These stabilize foam differently, causing rapid re-foaming, process disruptions, and quality defects that generic defoamers can't consistently control, especially under modern high-speed, closed-loop conditions.   New Fiber-Focused Solution: Our defoamers are precisely engineered for complexity:   Tailored Chemistry: Optimized carriers & actives target foam stabilized by specific non-wood fibers. Enhanced Stability: Resists breakdown under high shear and extreme process conditions (pH/temp). Guaranteed Compatibility: Works seamlessly with other wet-end chemicals, preventing deposits. Performance-Driven: Rapid knockdown and persistent foam suppression. Sustainable Options: Available with improved biodegradability profiles.   Tangible Mill Benefits: Reduced downtime & maintenance from foam Improved paper quality (fewer holes, spots) Stable machine runnability   Support for reliable use of alternative fibers Effective foam control is critical for mills innovating with fiber sources. Our targeted approach solves the specific chemistry mismatch causing persistent foam with bamboo, straw, and other non-woods. We develop and manufacture high-performance defoamers for demanding industrial applications, including pulp & paper. Our focus is solving complex foam problems through R&D and technical partnership.

1. Introduction In modern industrial production and daily life, seemingly light foam may have unexpected effects on the production process and product quality. Defoamers, this seemingly inconspicuous "small body", have a "big role" in solving foam problems. Today, let's explore the key applications of defoamers in various industries.     2. Application of defoamers in the chemical industry (I) Foam control during the reaction process Many reaction processes in chemical production will produce foam, such as polymerization reactions, esterification reactions, etc. If these foams are not eliminated in time, they will affect the reaction rate and conversion rate, and may even cause the reaction to get out of control. The addition of defoamers can effectively control the generation of foam and ensure the smooth progress of the reaction. For example, in the production process of synthetic resins, defoamers can prevent foam from accumulating in the reactor and ensure the quality and output of the resin. (II) Product separation and purification In the separation and purification of chemical products, foam can also cause trouble. For example, in distillation operations, foam may cause flooding and affect the separation effect. The use of defoamers can reduce the stability of foam, enable liquids to separate smoothly, and improve the purity and yield of products.   3. Application of defoamers in the food industry (I) Foam elimination in food processing The generation of foam is a common problem in food processing. For example, in the process of bread baking, the stirring of dough will produce a lot of foam, which will affect the volume and texture of bread if not controlled. The appropriate use of defoamers can eliminate these foams, making bread making smoother and more delicate. In beverage production, defoamers can also prevent filling difficulties and poor taste caused by excessive foam. (II) Food preservation and storage Some foods will also produce foam during storage due to the action of microorganisms or other reasons, which will not only affect the appearance of food, but also may cause food deterioration. Defoamers can inhibit the generation of foam to a certain extent and extend the shelf life and storage time of food. For example, in the storage of dairy products, defoamers can prevent excessive foam on the surface of products such as yogurt and maintain the stability and quality of the product.   4. Application of defoamers in the pharmaceutical industry (I) Foam control in the process of drug fermentation The microbial fermentation process in the pharmaceutical industry is one of the important links in drug production, and a large amount of foam is often generated during the fermentation process. These foams not only affect the transfer of oxygen and the exchange of nutrients, but may also cause problems such as contamination, affecting the quality and yield of fermentation. The rational application of defoamers can effect...

During the process of converting bauxite into alumina, the formation of foams is a long-term and costly issue. Uncontrolled foams can disrupt the key operations in the Bayer process, resulting in reduced output, low operational efficiency, quality problems, and potential safety hazards. Effective defoaming is not only beneficial but also crucial for maintaining the smooth, efficient and safe operation of the alumina refining process.      The foam challenge in aluminum oxide processing    In the Bayer process, the phenomenon of foaming occurs throughout the entire process. The main reasons for this are as follows:  1. High alkalinity: The strong corrosiveness of the liquid used in this process (i.e., the strong corrosiveness of the sodium hydroxide solution). 2. Fine particle suspended matter: There are fine particles such as red mud, tricalcium aluminate (water aluminate) precipitates, and precursors of scale formation. 3. Organic pollutants: Natural organic compounds from bauxite (such as humic acid, oxalate), which have the function of surfactants. 4. Stirring and aeration: Intense stirring, pumping, and the laminar flow of the liquid will bring in air. 5. High temperature conditions: Especially during digestion and calcination stages.    This kind of foam will bring about many problems: 1. Reduced sedimentation and cleaning efficiency: The foam will hinder the sedimentation process of red clay in the cleaning and sedimentation tanks, and prevent efficient cleaning operations. 2. Decreased equipment capacity: The foam will occupy a large amount of space in storage tanks, digesters, sedimentation tanks and evaporators, thereby limiting the processing capacity. 3. Unstable operation: Overflow of containers, pump cavitation and inaccurate liquid level measurement. 4. Product contamination: Impurities may be carried along with the product flow. 5. Increased scaling: The foam will aggravate the scaling problem on container walls and heat exchangers. 6. Safety risks: Slips, leaks and difficulty in monitoring containers.    The function of the special alumina defoamer    Traditional defoamers often fail to function under the extreme conditions of the Bayer process. The effective defoamers used in the production of alumina must possess specific characteristics:  1. Excellent alkali resistance: They must remain stable and active in high-concentration, high-temperature caustic solutions without decomposing or forming ineffective saponins. 2. High-temperature stability: Maintaining performance at digestion temperature and higher temperatures is crucial. 3. Particle tolerance: They must operate normally in a high-concentration environment of fine solid particles and must not fail as a result. 4. Organic compatibility: They need to inhibit foaming caused by organic pollutants while not being damaged by these organic substances. 5. Rapid defoaming and long-lasting inhibition: They can quickly ...