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Polyether antifoaming agents are high-efficiency, non-silicone, non-ionic surfactants used to eliminate and suppress foam in aqueous and non-aqueous systems, particularly in harsh, high-temperature, and alkaline environments. They are valued for being non-toxic, easy to disperse, and effective at low concentrations, making them ideal for pulp and paper, fermentation, textile dyeing, and water treatment.
Key Characteristics and Benefits
- High Performance: Provides fast foam breaking and long-lasting suppression even at low concentrations.
- Stability: Excellent resistance to high temperatures and strong alkaline/acidic conditions, such as those in industrial cleaning and pulp production.
- Versatility: Compatible with diverse mediums, including water-based coatings, adhesives, and oil/gas operations.
- Safety: Generally non-toxic, odorless, and non-irritating, suitable for industries like food and pharmaceuticals.
- Composition: Often composed of polyether compounds, such as polyoxyethylene polyoxypropylene glyceryl ether (GPE) or polyalcohol/fatty acid ester types.
Main Applications
- Paper Industry: Used in pulp and paper processing, including high-temperature alkaline pulping.
- Fermentation: Employed in the pharmaceutical industry for antibiotic and vitamin production.
- Industrial Processes: Essential in textile dyeing, chemical cleaning, and wastewater treatment.
- Oil & Gas: Used in drilling fluids and oil/water separation.
- Coatings & Adhesives: Acts as a defoamer to ensure smooth, defect-free surface coatings.
Types of Polyether Defoamers
- GP Type: Polyoxypropylene glycerol ether (block copolymer).
- GPE Type: Polyoxyethylene polyoxypropylene glycerol ether (reverse block copolymer).
- Modified Polyether: Tailored variants, sometimes incorporating fluorine components for specialized applications.
- Silicone-Polyether Copolymers: Combining the efficiency of silicone with the dispersibility of polyethers.
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Web results
Polyether defoamers,polyether-based antifoaming agents
Nanjing Antifoam Environmental Technology Co., Ltd
https://www.antifoamchemical.com › blog › characteristi...
Nanjing Antifoam Environmental Technology Co., Ltd
https://www.antifoamchemical.com › blog › characteristi...
Mar 22, 2024 — Polyether defoamers, also known as polyether-based antifoaming agents, are widely used in various industries due to their exceptional foam ...Read more
People also ask
What are the disadvantages of antifoaming agents?
Disadvantages of Silicone Based Defoamers
Silicone-based antifoam is relatively poor durability. Silicone is oil soluble, and it reduces the defoaming effects in oil systems. It is not ideal for long-term high-temperature resistance and strong alkali resistance.Jan 20, 2022
Silicone-based antifoam is relatively poor durability. Silicone is oil soluble, and it reduces the defoaming effects in oil systems. It is not ideal for long-term high-temperature resistance and strong alkali resistance.Jan 20, 2022
Advantages and Disadvantages of Silicone Defoamers- NAQ Global
NAQ Global - Home.blog
https://naqglobal.home.blog › 2022/01/20 › silicone-def...
NAQ Global - Home.blog
https://naqglobal.home.blog › 2022/01/20 › silicone-def...
What are common antifoaming agents?
The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam. Commonly used agents are insoluble oils, polydimethylsiloxanes and other silicones, certain alcohols, stearates and glycols.
Defoamer - Wikipedia
Wikipedia
https://en.wikipedia.org › wiki › Defoamer
Wikipedia
https://en.wikipedia.org › wiki › Defoamer
What is another name for an antifoaming agent?
A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably.Apr 21, 2022
Defoamers and Antifoam Agents: How are they used? - Brewer International
Brewer International
https://brewerint.com › news-insights › 101-guides › wh...
Brewer International
https://brewerint.com › news-insights › 101-guides › wh...
What are the two antifoaming agents?
Usually, small concentrations (< 0.1% bwow) can provide sufficient foam control. The two most common types of antifoam agents used in well cementing are silicones and polypropylene glycols.
Antifoams - an overview | ScienceDirect Topics
ScienceDirect.com
https://www.sciencedirect.com › topics › engineering › a...
ScienceDirect.com
https://www.sciencedirect.com › topics › engineering › a...
Web results
Polyether Defoamer | INVINO
ywlchemical.com
https://ywlchemical.com › defoamers › why-choose-us
ywlchemical.com
https://ywlchemical.com › defoamers › why-choose-us
Jan 13, 2026 — INVINO polyether defoamers are non-toxic and strictly tested for biocompatibility. They do not inhibit the growth of bacteria, yeast, or ...Read more
Defoamers/Anti-foaming Agents for Paint & Coatings ...
SpecialChem
https://www.specialchem.com › Coatings › Guide
SpecialChem
https://www.specialchem.com › Coatings › Guide
Jul 8, 2025 — Silicone polyethers have also been formulated with glycols to form easily incorporated dispersions for applications such as architectural paints ...Read more
Polyether Antifoam Suppliers,Non-silicone based ...
xiamen rickman chemical technology co., ltd
https://www.rickmanchemical.com › Polyether-antifoam...
xiamen rickman chemical technology co., ltd
https://www.rickmanchemical.com › Polyether-antifoam...
RK-800P is a non-silicone defoaming agent grafted with functional modified polyether. It has good dispersibility, fast defoaming and strong dynamic foam ...Read more
Advantages and disadvantages of polyether defoamer
Zilibon Chemical
https://www.zilibon.com › newShow_681
Zilibon Chemical
https://www.zilibon.com › newShow_681
Oct 15, 2019 — Because it is non-toxic, odorless, non-irritating and easy to disperse in water, it can be used in food, fermentation, cosmetics and ...Read more
Polyether vs. Silicone Antifoams
Amazon Chemicals
https://www.amazon-chem.cn › research-developme › p...
Amazon Chemicals
https://www.amazon-chem.cn › research-developme › p...
Polyether antifoams offer lower toxicity and withstand extreme conditions, such as high temperatures and varying pH levels. You may find polyether antifoams ...Read more
Polyether antifoam agent and preparation method thereof
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
Polyether defoamers mainly include straight-chain polyether, etc., which have strong antifoaming ability and are currently the leading defoamers used in the ...Read more
Polyether Modified Silicone Defoamer
XJY Silicones
https://www.xjysilicone.com › polyether-modified-silic...
XJY Silicones
https://www.xjysilicone.com › polyether-modified-silic...
Polyether-modified silicone defoamer is a new type of high-efficiency silicone defoamer that organically combines the advantages of the two.Read more
Polyether Defoamer Manufacturer | Premium Antifoam ...
Kemaix
https://kemaix.com › polyether-defoamer
Kemaix
https://kemaix.com › polyether-defoamer
Kemaix Polyether Defoamers (GPE & PE Series) are mature, highly competitive products designed to eliminate persistent foam in diverse industrial environments.Read more
Polyether Modified Silicone Defoamer
Shenyang Rise Surface Technologies Co., Ltd.
https://www.risechemical.com › news › polyether-modifi...
Shenyang Rise Surface Technologies Co., Ltd.
https://www.risechemical.com › news › polyether-modifi...
Oct 31, 2024 — Polyether defoamer is a nonionic surfactant with excellent defoaming and foam inhibition functions, odorless, non-irritating and easily ...Read more
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