The relationship between defoamer and coating Paint is an indispensable material in modern industry and daily life, and its performance directly affects the quality of products in the fields of construction, automobiles, furniture, etc. However, during the production and application of paint, a large amount of foam is easily generated due to surfactants in the raw materials and operations such as stirring and pumping. In addition to being beautiful, paint can also form a strong solid film, which is a protective coating, but it often encounters a problem, that is, foam. Water-based paints and solvent-based paints use various additives in their formulations, such as wetting dispersants that make pigments and fillers easy to wet, disperse and stabilize, additives that improve the storage stability of finished paints, additives that adjust the appearance of the paint film, and some additives that achieve special functions. Most of these additives are surfactants, which can change the surface tension of the paint, which is an internal factor that causes the paint to be prone to foaming. In addition, stirring and high-speed dispersion during the manufacture of paint, and shearing during spraying, rolling and brushing during application construction, will also increase the free energy of the paint system to varying degrees and generate foam, which is an external factor that generates foam. If the large amount of foam produced by the paint is not eliminated in time, it will cause various defects such as pinholes, shrinkage holes, fish eyes, orange peel, etc. on the surface when it is painted on the object, affecting the finishing and protective properties. Hazards of foam 1. Foam can easily cause volume expansion, resulting in reduced equipment utilization. 2. Foam limits the stirring speed and prolongs the mixing time of the paint. 3. Foam affects the wetting of pigments and fillers. 4. A large amount of foam affects production line packaging and interferes with packaging operations. Importance of defoamers Defoamers are one of the indispensable additives in the coatings industry, as they quickly break and suppress foam, ensure smooth coating production and construction processes, and improve coating quality and efficiency. Ⅱ·Application of coating defoamer Production link During the mixing and grinding process of the paint, foam may cause problems such as uneven stirring and abnormal viscosity. The use of high-efficiency defoaming agents can improve production efficiency and reduce process losses. Storage link During storage, the paint may produce foam due to ambient temperature and vibration, leading to sedimentation and stratification. Adding defoaming agents can extend the storage stability of the paint and ensure product quality. Construction link During the construction of the paint, spraying, brushing, roller coating and other methods are prone to affect the smoothness and fullness of the coating film due to bubbles. Defoaming agents can quickly ...

Foam Control Agents For Water treatment In water and wastewater treatment industries, the fluids contain bacteria, chemicals, and other compounds hazardous to human health. The causes of foam in different water treatment plants are varied. Foam can be caused by biological activity, mechanical action, chemical contamination, surfactants or some polymer. Regardless of the cause, excessive foams are unacceptable and often interfere with operations. Rickman manufacture defoamers and antifoams for following water treatments: • Sea water desalination • Industrial wastewater treatment • Industrial circulation water treatment • Municipal sewage treatment • Biological water treatment • Reverse Osmosis water treatment • Landfill leachate • Membrane system Benefits of antifoam and defoamer for water treatment, such as: Antifoaming agents are essential chemicals for reverse osmosis water treatment and landfill leachate as they help decrease the amount of foam produced during the filtration process. As mentioned above, foam can disturb the effectiveness of the system and can cause a series of problems such as clogged filters and decreased water flow. Defoamers are used in urban wastewater treatment to decrease the amount of foam on the water surface. Problems such as decreased efficiency of the treatment process, accrued energy costs and accrued sludge buildup are all caused by foam. The operating principle of defoamers is to destroy the surface tension of bubble, causing it to collapse and disperse. Defoamers with high antifoaming efficiency, are important chemical additives for biological water treatment. Defoamers from Rickman have good diffusivity and permeability, complete compatibility and strong oxidation resistance. They help decrease the amount of foam produced when organic materials are broken down by bacteria, thereby preventing inefficiencies caused by foam. Defoamers also help decrease the number of air bubbles emerged during aeration, which can cause oxygen transfer and lead to poor water quality. And how to find the most suitable defoamer solutions for  water treatment, such as landifill leachate, general wastewater treatment? 1. Defoamer should be tested and verified the added volume by small trial test. 2. The amount and the method of addition depends on the foaming capacity of the water on site.  Moreover, the wastewater treatment should be a dynamic process of continuous replenishment of new wastewater. 3. The foaming force is also a dynamic fluctuation, which needs to be determined by pilot test! Defoamer for water treatment (Brochure) Silicone(Water based) defoamers           Polyether defoamers       Fatty alcohol defoamers RK-8636 RK-400P RK-F0080 RK-1210S RK-500P RK-1215A RK-700P RK-10S RK-800P RK-0036 RK-883S

Antifoams And Defoamers For Construction And Building Additives, material and stirred speed always lead to the foam appearance in construction. If the foam cannot disappear, the film shrinkage, and pinhole will be caused, which affects the quality and smooth appearance. Therefore, Rickman defoamers play an important role for solving foam questions. • Cement mortar • Concrete • Asbestos tile • Fiber cement • Gypsum • Polycarboxylate superplasticizer • Adhesives • Diatom ooze Why antifoam is used in concrete admixture? Foam can reduce the effectiveness of the admixture, leading to reduced performance in concrete and  also cause air entrainment, which can lead to increased permeability and decreased strength. Antifoams can reduce the amount of air entrained in the mix and the amount of water needed in concrete mixes, allowing for more efficient use of resources,  and lead to a stronger and more durable finished product. Why defoamer is used for adhesives? Antifoams can  reduce air bubbles in adhesives, which can lead to better adhesion and a stronger bond. Additionally, antifoams can help reduce viscosity and improve flow characteristics of adhesives, resulting in better coverage and easier application. Why antifoam is used in cement mortar? Foam in cement mortar can reduce the strength of the mortar, reduce its water-resistance, and increase its permeability. Antifoam works by breaking down the surface tension of the foam bubbles, allowing them to collapse and disperse. This reduces the amount of air entrained in the mortar, resulting in a stronger and more durable mix. Why antifoam is used for fiber cement and gypsum? Antifoams reduce the amount of air entrapment, which can lead to weak spots in the finished product. Additionally, antifoams help to improve product consistency and quality by preventing the formation of bubbles in the mix. Our products: Silicone antifoams: RK-1210S RK-1215A Polyether antifoams: RK-800P RK-600P RK-0036 Powder antifoams: RK-04P RK-104P RK-07P Brochure: Defoamer for construction and building materials

Foam Control Solutions For Oil And Gas Oil and gas exploration, oil drilling, oil and gas separation, delayed coking, refining, and transportation are carried our in extremely different conditions.  Bubbles can reduce the productivity, and create the safety and environmental pollution. Therefore, defoamers is necessary to add to reduce or eliminated to increase productivity, enhance quality. Silicone based and non-silicone based antifoaming agent from Rickman optimize the production, refining, and separation of oil and natural gas to make sure that the petrochemical material can be extracted as purely and efficiently as possible. Antifoams for delay coking Foam is a problem in the delay coking process because it can reduce the efficiency of the process and increase emissions. Foam can form when the coke is heated too quickly, which can cause it to vaporize and create bubbles that form a foam. This foam can then block the flow of liquid and gases, leading to increased pressure in the vessel and reduced heat transfer. Antifoam for oil and gas separation Foam can be detrimental to oil and gas separation processes because it can reduce the efficiency of the separator. Foam can cause droplets of oil to remain suspended in the gas, leading to a decrease in the overall efficiency of the separation process. Antifoam for oil drilling Oil spills can occur during the extraction process, which can contaminate water sources and harm marine life. Additionally, air pollution from burning fossil fuels is a major source of air pollution and greenhouse gas emissions. Antifoam for oil refinery Foam in an oil refinery can be dangerous because it can cause fires and explosions. Foam is a combustible material, and when it is exposed to heat or sparks, it can ignite and cause a fire or explosion and block pipes and valves, which can lead to equipment failure and disruption of the refinery's operations. Our products: Antifoam compound(Silicone antifoam): RK-400S RK-30C RK-8636 Polyether antifoam: RK-700P RK-0036 Brochure: Defoamer for oil and gas

Defoamers And Antifoams For Pulp And Paper Industry The foam appears during pulp production, due to the black liquor that is comprised of NaOH, Na25, tall oil soap, rosin soap, lignin, cellulose and other organic compounds. And paper machines are very sensitive to foam generation through chemical interactions on the machine such as sizing, fines, dry strength, wet strength.  Foaming can reduce pulp and final paper quality and quantity. Antifoam Mechanism: 1. The spread of the antifoaming agent replaces the foaming molecules on the upperlayer of the foam bimolecular membrane, foaming a film with very low strength; 2. In the process of spreading, part of the solution of the adjacent surface layer will be taken away, reduce the stability of the foam and make it easy to destroy. Antifoam for pulp process: Anionic surfactants are formed by chemical reaction between alkali and wood or Straw grass during cooking process. Silicone defoamer or non-silicone defoamer are usually used for pulp preparation.Silicone and non-silicone defoamer has it’s own focus according to different raw materials.Silicone defoamer series are more efficient in pulp washing with hard wood and soft wood as raw materials. Silicone based defoamer series are usually continuously added to the filtered black liquor during pulp washing process. Antifoam for Paper Machine: Paper making process is an important process for paper forming. A lot of additives, such as sizing agent, retention agent, filter aid,wet strength agent,dry strength agent etc are to be used to form paper with certain performance. These additives are added in different dosing points. And it’s easy to form foaming during white water circulation in closed system. Paper machine defoamer is usually added in the points with a lot foam, for instance, underwire white water chest or white water tank. Defoamer will be added continuously in several dosing points to give full play of defoamer performance.It will not only achieve good performance but also save cost. Antifoam for paper sizing and coating: Because agent itself is also a surfactant, which is mixed air during operation.Paper sizing defoamer usually added at the sizing press out the section. Antifoam for paper coating is usually added during the formulation of coatings.Styrene-butadiene latex is the  latex make coated art paper coating and can easily cause foam when dispersing pigments or filliers at high speed. Foam Control Agents For Water treatment: In water and wastewater treatment industries, the fluids contain bacteria, chemicals, and other compounds hazardous to human health. The causes of foam in different water treatment plants are varied. Foam can be caused by biological activity, mechanical action, chemical contamination, surfactants or some polymer. Regardless of the cause, excessive foams are unacceptable and often interfere with operations. Antifoaming and foam suppression ability test  methods could be shaking test, bubbling test and cycl...

Defoamer And Anti foam Solutions For Textile & Leather Dyes and auxiliaries are the main factors for foaming appearance, such as penetrants, emulsifiers, and levellers tend to produce foam after being subjected to mechanical vibration.   And textile processes include textile dyeing, textile auxiliaries, textile sizing, textile printing, pre- treatment and after finish. Leather process, tanneries factories also produce unwanted foams at different stage of processes, due to they want to enhance the look, feel, water resistance and durability of products. Depending on the product, defoamers can be added as internal antifoam where they are in incorporated into the auxiliaries or external antifoams, where they are added to destroy the foams as it occurs.  Our silicone, and non-silicone defoamers provide high stability and efficiency in those processes. Why antifoam is used for textile dyeing? Water-based system is composed of dye and textile printing and dyeing auxiliaries. Under high-temperature, mechanical vibration and shear force, it's easy to form a lot of foam. During mid temperature dyeing process, water-based system includes lots of dye, scouring agent, permeating agent and other surfactants. Because of mechanical vibration, water-based system is easy to form a lot of foam. Why antifoam is used for textile auxiliaries? Textile auxiliary production always use a largeamountofsurfactants as basic material. With continuous heating and mechanical stirring, it's easy to formbubbles. Internal addition and external addition decide the defoamers’ performances. Why antifoam is used in textile printing and sizing process? Textile pulping mainly includes starch, carboxyl methyl cellulose, methyl cellulose polyvinyl alcohol, polyvinyl acetate, and acrylate. Under shear force and with temperature and pH change, those macromolecular substances are easy to form bubbles. And during beating and stirring, print paste is easy to form foam. If foam is not dealt with promptly, print paste will appear white point and spot, or it will make fabric pattern color fuzz. Why defoamer is used for pre-treatment and after finish process? Pre-treatment: it needs desizing agent when product desizing, scouring&bleaching agent and detergent while bleaching&washing. For better permeation into the fabric, high temperature and strong alkali boiling-off are necessary, but they cause foam appearance. After finish: it needs to add softening agent and keep continuous heating ,which is easy to form a lot of foam. Our products: Antifoam compound (silicone antifoam): RK-900N RK-30N RK-63B RK-15S RK-23S RK-110S RK-83S RK-8636 RK-100S RK-30S RK-63T RK-0036 RK-561 RK-T60 Mineral oil antifoam: RK-203 Powder(granule) antifoam: RK-02P RK-03P Brochure: Defoamer for textile industry

Defoamer And Antifoam Solutions For Agriculture In agriculture, fertilizers and pesticides, and others are the basic necessary to feed every growing population. In the process of pesticides and fertilizers based on the phosphoric acid, sulphur bentonite, diammonium phosphate, because of temperature, stirring speed and equipment conditions, the air is contributed during production. Those unwanted foams can affect the productive capacity and products’ quality. Antifoams for pesticide Foam is often used as a delivery system for pesticides, but it can be dangerous if not used properly. Foam can trap and concentrate the pesticide in one area, leading to an increased risk of exposure to humans and animals. Antifoams for fertilizer Foam in fertilizers may lead to harmful effects on crops if not applied properly, which  blocks the uptake of nutrients and water, leading to nutrient starvation and stunted growth of crops. It can also cause root damage if too much fertilizer is applied or too close to the roots. Antifoams for phosphoric acid process Wet process phosphoric acid production is a process used to produce phosphoric acid from phosphate rock. It involves the reaction of sulfuric acid with phosphate rock, which produces phosphoric acid and calcium sulfate (gypsum). That focus has led Rickman to develop an extensive ranges defoamers for agriculture. Key futures and typical benefits: • Fast knock down the foams for a broad range of formulation •Long -lasting foam control • Excellent dispersibility and compatibility • Increased capacity •Widely applications Our Products: RK-T35 RK-8636 RK-900N RK-30N RK-63B RK-8KD Brochure: Defoamer for agriculture

Defoamer For Fermentation During the fermentation process, the foam-active substances, air and turbulences contribute the excessive foam. Generally, carbohydrates as material, are converted into sugar substrates, enzymes, starches and proteins, which promote the foam appearance.  In addition, amino acids and proteins generated by microorganism can cause large of foam activity. Antifoam Mechanism: 1. The spread of the antifoaming agent replacesthe foaming molecules on the upperlayer of the foam bimolecular membrane, foaming a film with very low strength; 2. In the process of spreading, part of the solution of the adjacent surface layer will be taken away, reduce the stability of the foam and make it easy to destroy. As a manufacturer of foam control agents, RICKMAN provides a series of defoamer solutions for molasses fermentation, ethanol/ alcohol fermentation, distilleries, sugar refineries etc. Silicone defoamers and polyether defoamers provide excellent breaking foam and antifoaming performance for fermentative processes.  And adding procedure depends on the fermentation progress. The usage of antifoams can be adjusted according to the whole fermentation. Our products: RK-8636 RK-F0080 RK-0010 RK-700P Brochure: Fermenation defoamer

Antifoams For Household And Detergent Consumers hope household detergents are full of functional, easy to handle and reduce water consumption. As very specialized and complex products, foam influence the products’ efficiency and performance.  This means that foam control agents is the necessary solutions for solving foam problem to make sure the quality household detergents. Rickman offers a line of antifoams for every class of household detergents.  Compound antifoams, antifoam emulsions and powder antifoams are useful to powder detergent/ laundry powder/ washing powder and all kinds of liquid detergent. Antifoams for liquid detergent In the life, Liquid detergents bring convenience to people, bearking down and remove dirt and grime. But excessive foam can harm aquatic life and cause pollutions, leading to clogged drains and create potential safety hazards. And antifoam can prevent excessive foam generation. Antifoams for powder detergent In mordern life, the powder detergent is necessary  products. However, durting powder detergents' production, the excessive foam will bring harms , such as environment, helath, and efficiency of detergents.  Rickman's range of powder and granule antofoams can solve unwanted foam problems to imporve and meet the performance and compatibility of detergents you may produce. Our products: RK-06P RK-106P RK-900N RK-33S RK-30N RK-63B Brochure: Defoamer for laundry and household