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YUEYANG CHEM WATERBORNE ADDITIVE CO., LTD. was established in 2010. It specializes in the R&D, production and sales of environmentally friendly additives. The company has a number of invention patents with independent intellectual property rights, and is one of the major manufacturers and suppliers of defoamers in the world. Defoamer is an anti-foaming chemical that is used for industrial processes. It has anti-foaming properties so it is used to reduce foam during the process.

Why Choose Us?

Advanced Equipment

In order to ensure product quality, the company is equipped with advanced testing instruments, including Agilent 5890 gas chromatograph and gas phase-linked mass spectrometer, Mettler-Toledo acidity meter, and German SITA dynamic surface tension meter.

Broad Market

CHEM-ADDITIVE has established a good corporate image among domestic and foreign customers, focusing on the Chinese market, with a sales network all over the world, and its products are exported to the European Union, East Asia and the Americas.

Complete Qualifications

The company has passed the international ISO9001:2015 quality management system certification and IS014001:2015 environmental management system certification, as well as the EU chemical industry's joint efforts to achieve sustainable development Tfs certification, 16949 automotive industry quality management system and reach registration.

Customized Service

Unique formulas require the combination of different additives. CHEM-ADDITIVE's strong R&D system can help customers develop some new-structured surfactants, defoaming agents, dispersants and special additives to meet the special requirements of customers in market segments.

Organic Silicone Defoamers
Silicone-based defoaming agents are defoamers derived from silicone compounds, widely used in various industrial processes.
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Mineral Oil Defoamers
Mineral oil defoamers consist of approximately 85–95 % mineral oil and 1–3 % hydrophobic particles.
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Alkyne Diol Defoamer
An acetylenic diol defoamer is a type of additive based on acetylenic diol compounds, specifically designed to reduce or eliminate foam in liquids. These defoamers are widely used in industrial...
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Ethoxylated Acetylene Glycols
An ethoxylated acetylenic diol defoamer is a type of defoamer derived from acetylenic diol molecules that have been modified through ethoxylation.
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Organic Silicone Defoamers
Silicone-based defoaming agents are defoamers derived from silicone compounds, widely used in various industrial processes. Known for their low surface tension and high defoaming efficiency, they...
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Alkyne Diol Modified Defoamers
Acetylenic diol modified defoaming agents are chemically modified defoamers based on acetylenic diol structures. By adding specific functional groups, they exhibit enhanced defoaming efficiency...
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Mineral Oil Defoamers
Mineral oil defoaming agents are defoamers based on mineral oil components, commonly used in industrial processes where effective foam control is required.
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Alkane Defoamers
Alkane-based defoaming agents are defoamers primarily composed of alkanes, widely used in industrial fields where efficient foam control is necessary. Due to the low polarity and hydrophobic...
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Molecular Defoamers
Molecular-level defoaming agents are a class of defoamers precisely engineered at the molecular level to provide efficient foam control in specific industrial systems.
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Defoaming Agents
Deaerators are chemical additives specifically designed to remove entrapped air and gas bubbles from liquid systems. They work by reducing the surface tension of the liquid, allowing bubbles to...
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Foam Suppressants
Antifoam agents are additives specifically designed to prevent or slow down the formation and accumulation of foam during production processes.
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Foam Breakers
Defoamers are chemical additives specifically designed to eliminate already formed foam. Unlike antifoam agents, which prevent foam formation, defoamers work by reducing the surface tension of the...
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Introduction to Defoamers

Defoamers are additives, prepared by blending silicone oil and surfactants. Defoamers are often used to reduce detrimental foaming of emulsions. Foaming is disruptive for handling and storage purposes, and also affects the application properties. There is a wide range of defoamer chemistries used in practice. The major groups are based on silicone and mineral oil chemistries.

Specifications of Defoamers

Item	620	620P	632	632B	650	650P
Appearance	Clear yellow liquid
APHA color	＞110	＞110	＞110	＞80	＞80	＞80
Active Content	20%	20%	32%	32%	50%	50%
Solvent/Carrier	Ethylene glycol&Dipolyethylene glycol	Polyethylene glycol	Dipropylene glycol	Butyl cellosolve	Butyl cellosolve	Polyethylene glycol
Solubility	Insoluble

Performance of Defoamers

Enhanced defoaming performance

Modified acetylenic diol molecules provide more effective foam elimination and suppression.

Long-lasting effect

Offers prolonged defoaming action, reducing the need for frequent reapplication.

High tolerance

Maintains effective defoaming performance under high-temperature, high-shear, and high-viscosity conditions.

Wide applicability

Suitable for various complex industrial applications, especially in high-demand systems like coatings, inks, and adhesives.

Chemistry of Defoamers

Defoamers are formulated around a carrier fluid, which may be a hydrocarbon, silicone oil, vegetable oil, synthetic polymer, etc. Active ingredients, which help with spreading or destabilizing foam, can include waxes, metal salts, silicas or other hydrophobic particles.

An emulsification system can be incorporated to optimize spreading and compatibility of the defoamer to a given foaming system and depending on the chemistry, stabilizing agents such as cellulosic or acrylic thickeners may be added to improve shelf stability.

Application Scope of Defoamers

Food Products: Antifoaming products are in demand by food professionals as it makes the food presentable. Deep-fried food needs to be prepared with the use of defoamers.

For the harsh environment: Defoamers are self-emulsified which can be diluted with water and used under a temperature of 30 C.

For wastewater treatment

Defoamers are used in wastewater treatment where defoamers control bubbles and help to minimize foam generation.

Wood pulp, paper, paint

It is used to prevent the formation of foam in the production process of wood pulp and paper. Kraft and sulfite washing is the required process in wood pulp. Defoamers are needed for the same process. It is also used in the preparation of paints during the fermentation process.

Oil drilling

Defoamers are used in the cementation, drilling mud during the process of oil extraction. It plays a vital role in preventing gas from entering the liquid extract. It hinders the formation of foam.

Tips for Using Defoamers

●Use the right defoamer for the application. There are many different types of defoamers available, so it is important to choose the right one for the specific application.
●Add the defoamer at the right time. Defoamers should be added to the system before or after foam forms, depending on the type of defoamer that is being used.
●Use the correct dosage. The amount of defoamer that is needed will vary depending on the application. It is important to follow the manufacturer's instructions carefully.
●Monitor the system. It is important to monitor the system after defoamer has been added to ensure that the foam is being controlled. If the foam is not being controlled, it may be necessary to increase the dosage of defoamer or use a different type of defoamer.

Other Services of Defoamers

Recommended Dosage: 0.2-2.0% of total formulation weight.

Storage and handling: Keep containers tightly closed in a dry, cool and well-ventilated place. Mix thoroughly before use.

Packing: Available in 25kg or 180kg drums, 1000kg IBCs.

FAQ

Q: What is the principle of defoamer?

A: When it dissolves into the foam solution, the surface tension is significantly reduced. Because these substances are generally less soluble to water, the reduction in surface tension is limited to the local area of the foam, with little change in surface tension around the foam.

Q: What are the industrial uses of defoamers?

A: Defoamers are chemical additives that are used to control or eliminate foam in industrial processes. Foam is a dispersion of gas bubbles in a liquid, and it can be a problem in a variety of industries, including: Chemical processing: Foam can interfere with mixing, heat transfer, and product quality.

Q: What is the composition of a defoamer?

A: Defoamer compositions are prepared using substituted amides, oil soluble organic polymers, and hydrocarbon oil, by means of a novel quick-chilling process. Optionally, fats and silicone oil May be present. The compositions May be used for defoaming and/or preventing foam buildup.

Q: How to choose a defoamer?

A: Type of foam: Understanding the nature of foam in your process is crucial.
Chemical compatibility: Ensuring compatibility between the defoamer and your process chemicals is paramount.

Q: What is the pH of defoamer?

A: The opaque white, liquid defoamer is non-corrosive and has a temperature range from ambient temperature to 85 Degrees C. It has a flash point of greater than 93.3 Degrees C. This low odour product has a pH level of 7.0 to 9.0 and is safe for use on all metals.

Q: What is the difference between a surfactant and a defoamer?

A: Surfactant (an amphiphilic) works based on reducing the surface tension of water binding thru hydrophobic interaction and hydrophilic interaction with water, therefore pulling off things apart and surface tension is reduce cuz water surround the surfactant.

Q: What is the difference between Antifoam and defoamer?

A: The key difference between defoamer and anti-foam is that anti-foam agents can prevent foam from forming, whereas defoamers can control the amount of existing foam. Therefore, anti-foam agents prevent foam formation while defoamers reduce existing foam.

As one of the leading defoamers manufacturers and suppliers in China, we warmly welcome you to buy cheap defoamers for sale here from our factory. For free sample, contact us now.

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