defoamer-antifoam

Global defoamer market trends According to statistics, the global defoamers market was worth US$3.2 billion in 2018, and the compound annual growth rate is expected to be 4.8% between 2019 and 2025. The increasing use of defoamers in a variety of agrochemicals such as fertilizers and pesticides, as well as the significant growth of water treatment infrastructure, have promoted the development of this market. Defoamers play an important role in reducing the carbon footprint caused by manufacturers and end users, which may drive the demand for low VoC solvent-free defoamers. Manufacturers emphasize the use of bio-based and sustainable raw materials, rather than petroleum-based variants. On the other hand, manufacturers emphasize the development of modified and high-performance organosilicon compounds to improve product performance. North America defoamers market size, by product, 2018-2025(USD million)   Due to the low c...

How to choose a defoamers for the formulation system correctly? What factors affect the defoaming efficiency?   After learn the factors that affect the defoaming efficiency, let's take a look at the impact of our main protagonist today-"defoamer" on the coating system.   So is the defoaming efficiency higher, the defoamer is better? Generally speaking, the better the antifoaming effect of the defoamer, the worse its compatibility with the system. Therefore, the best choice of defoamer is to achieve a balance of performance. There are many factors in the coating formulation that affect the air bubbles and defoaming, so the selection of defoaming agents should be considered comprehensively.   Surface tension The surface tension of the paint has a greater impact on the defoamer. The surface tension of the defoamer must be lower than the surface tension of the paint, otherwise there will be no defoaming and foam suppression effect. The surface tension of the coating is a va...

What is a silicone defoamer ? Why can silicone work to break foam? The defoamers must be able to reduce the surface tension to break foam in order to control foam, Compared with most other foam control materials, silicone has lower surface tension and interfacial tension, it is difficult to be dissolved by surfactants commonly used in the system. At the same time, compared with glycol-based or mineral oil-based defoamers, the toxicity is relatively low. What are the advantages of silicone defoamers? Is it suitable for corrosive conditions? Silicone defoamers can ensure efficient and lasting effect. Silicone defoamers are very safe. Many categories meet the requirements of the US Food and Drug Administration (FDA), the US Environmental Protection Agency (EPA), the US Department of Pesticides (USDA) and other regulations , Low surface tension, can effectively control the generation of foam in a variety of foaming materials. There are a variety of defoamers that can perform well under var...

The global papermaking chemicals market will exceed 42 billion US dollars in 2025 Relevant data show that the global papermaking chemicals market will exceed 42 billion US dollars in 2025. Papermaking chemicals as follow: process chemicals, functional chemicals, pulping chemicals on the other hand by type, they can be divided into special chemicals, commodity chemicals, etc. Papermaking chemicals are specifically used to change paper properties, including color, strength, recycling performance, basis weight, quality, and related attributes. In order to obtain specific functions, the paper undergoes various processes such as bleaching, beating, strengthening and sizing. In order to further improve paper quality and improve multiple functions, people in the industry continue to improve the performance of paper, and it is expected that the scale of the chemical industry will be further promoted in the next few years. Why does paper chemicals has been increasing? As the pursuit of paper fi...

Elkem acquires Guangzhou Polysil Elkem Corporation, an overseas company affiliated to China Bluestar, announced on April 14, 2020 that it has completed the acquisition of Guangdong Polysilicon Technology Co., Ltd. (Polysil, referred to as Poly Science and Technology). This successful acquisition will help the two companies to play a role in silicone product technology. The synergy with the terminal market has laid a solid foundation for the professional development of Elkem in China and even the world. About Polysil Polysil  is a leading manufacturer of silicone elastomers and resin materials in China. Headquartered in Zhongshan City, Guangdong Province, it has two factories and a research and development center with more than 350 employees. The company has a leading technological position in the production and development of thermosetting silicone rubber (HCR), liquid silicone rubber (LSR) and special silicone resins and pressure-sensitive adhesives (PSA). Representative products ...

Do you know the major applications of silicone defoamers? 1. Textile printing and dyeing: Sizing process: water emulsion type silicone defoamer, such as: silicone polyether, the amount added in the sizing tank is 0.2¬0.25g / L Chemical fiber oil agent: chemical fiber oil agent is added with 0.02¬0.04% water emulsion defoamer. The chemical fiber oil formulation should contain silicone oil. Desizing and refining: use polyether-containing silicone. Bleaching: Strong acidity, silicone defoamer. Dyeing: Silicone emulsion defoamer. It is best to use polyether silicone for jet dyeing, which is high-temperature defoaming, low-temperature water-soluble, and does not stain the fabric. 2. Petrochemical industry: Drilling: ethyl silicone oil (or methyl silicone oil layer emulsion) is used for mud additives. Oil recovery: oil and gas separation, defoaming stick. The melting point is 2.8 13.9 ° C higher than the foam temperature at the wellhead. Absorption of natural gasoline: Dimethyl silicone oil ...

Landfill leachate defoamer Landfill leachate has complex water quality and contains a variety of toxic and harmful inorganic and organic substances. The concentration is much higher than that of municipal sewage. Leachate needs to be strictly treated. Generally, anaerobic biological filter (IAF) and aerated organisms are used. Combined filter (IBAF) is used as a biological treatment process. Specific types of waste infiltration treatment devices include traditional activated sludge method, stable pond, biological turntable, anaerobic fixed membrane bioreactor, etc. Generally, it will be filtered through several membranes to remove suspended matter and harmful molecules. During this process, a large number of air bubbles will be generated, which is not conducive to membrane filtration and the discharge of harmful gases, and will also cause the accumulation of suspended matter.let'slearn Landfill leachate defoamer. The following is the application case of our customer which nee...

Why does the power plant desulfurization foam? With the rapid development of industry and the importance of the country and people to environmental protection, power plant desulfurization process has become an important part of power plant production. The flue gas desulfurization process of normal power plants can be divided into three categories: wet method, dry method and semi-dry method according to the state of desulfurizer and desulfurization reaction product. At present, the flue gas desulfurization technology is dominated by the wet desulfurization process, and the dry and semi-dry desulfurization processes are also under development. Since the desulfurization agent is used for flue gas desulfurization in thermal power plants, and the desulfurizing agent is alcohol, the practical and common silicone defoaming agent is used to obtain the foaming effect of the absorption tower slurry of the desulfurization device through practical experiments and laboratory test foam data....

Nanjing Invelychem has developed a defoamer (anti-foaming agent); Invely-0030, which exhibits a superior defoaming property in the sugarcane ethanol production process. 【 Background of the development 】 Amid the taking measures against global warming, bioethanol is considered a green alternative to gasoline that does not affect the total amount of CO 2 in the atmosphere. It is expected to be carbon-neutral biofuel and its use has been steadily increasing mainly in U.S. and Brazil. Bioethanol is produced from feedstock crops such as sugarcanes and corns via alcoholic fermentation. Especially sugarcanes give very high bioethanol yield per unit of land; thus bioethanol has been already widely used in Brazil where the largest amount of sugarcane is produced worldwide. Bioethanol is produced by a decomposition of sugar to ethanol and carbon dioxide through alcoholic fermentation using yeast. Carbon dioxide generated during the fermentation process creates a lot of foams, and t...

In the process of sewage treatment, I believe that everyone often encounters a large amount of foam in the biochemical pool, and if it is at rest, it will overflow from the pool, causing serious pollution of the external pool wall of the external equipment, which will deteriorate the operating conditions. Affected   the surrounding environment Type of foam 1.     Initial bubble Ø   In the initial stage of aeration tank start, the sludge in the aeration tank is not suitable for the water quality of the sewage, and is not suitable for the growth environment, and foam is easily formed. As the sludge adapts to water quality, the foam will decrease. Ø   At the beginning of the aeration tank start-up, the sludge is relatively small, the sludge load is high, and foam is easily generated. After the amount of sludge increases, the foam will gradually disappear. Ø   In the initial stage of the ope...

Why is there foam in the paint and coating? What we should do to eliminate foam?             check below details:           Surface tension The surface tension of the coating has a great influence on the defoaming agent.  The surface tension of the defoaming agent must be lower than the surface tension of the coating. Otherwise, there is no defoaming and foam suppression. The surface tension of the coating is a variable factor, so a constant surface tension is required when using the defoamer, and then the surface tension variation factor is taken into account. The influence of other additives Surfactants used in coatings are mostly functionally incompatible with defoamers. In particular, emulsifiers, wetting and dispersing agents, leveling agents, thickeners, etc., have an effect on the effect of the antifoaming agent. Therefore, we must pay attention to ...