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    AI Overview
    Polyether defoamers are
    crucial non-silicone additives in papermaking, used in pulping, coating, and wastewater treatment to eliminate foam, improving efficiency, drainage, and paper quality by breaking down bubbles in aqueous systems. They offer good water compatibility, high-temperature stability, and rapid foam knockdown, acting as an anti-foam agent by reducing surface tension and ensuring smoother, defect-free paper production. 
    How it Works 
    • Structure: Polyethers have both hydrophilic (water-loving) and hydrophobic (oil-loving) parts, allowing them to bridge water and oil phases in the foam.
    • Mechanism: They penetrate the foam film, reduce surface tension, and cause the bubbles to rupture and collapse, preventing foam buildup. 
    Key Benefits in Papermaking 
    • Improved Efficiency: Prevents foam interference in pulp consistency, drainage, and overall machine operation.
    • Better Quality: Minimizes sheet defects and ensures consistent paper quality.
    • Cost Savings: Can reduce chemical usage and improve drainage, boosting machine speed.
    • Versatility: Effective in pulping, coating, whitewater systems, and water treatment.
    • Non-Silicone: Often preferred over silicone defoamers for cleaner performance with less residue. 
    Applications 
    • Pulping & Stock Prep: Eliminates foam from lignin, soaps, and hemicellulose.
    • Paper Coating: Ensures smooth, even coating application.
    • Whitewater Systems: Controls foam in closed-loop water circuits.
    • Wastewater Treatment: Manages foam in mill effluent. 
    Advantages Over Silicone 
    • Polyether defoamers resist breaking down in high heat and strong alkali/acid conditions better than some silicones.
    • They provide excellent dispersion and emulsification in water-based systems. 
    • Polyether-Based Defoamer - Amazon Chemicals
      Azpc® Pe-D01 – Polyether-Based Defoamer for Water-Based Paper Systems. Azpc® Pe-D01 is a high-efficiency polyether defoamer design...
      Amazon Chemicals
    • Defoamers in Papermaking - Amazon Chemicals
      Polyether-based antifoams ... These second-generation agents resist high temperatures and strong acids or alkalis. You benefit fro...
      Amazon Chemicals
    • High-Efficiency Polyether Defoamer for Papermaking & Coating
      Our polyether defoamer is a non-silicone, high-performance solution designed to effectively eliminate and suppress foam in paperma...
      NINGBO INNO PHARMCHEM CO.,LTD.
    • Optimizing Paper Production: The Role of Polyether Defoamers
      Dec 11, 2025 — Foam is a persistent challenge in the papermaking industry, often leading to decreased production efficiency, inconsis...
      NINGBO INNO PHARMCHEM CO.,LTD.
    • Non-silicone EOPO polyether Defoamer for paper making ...
      *NON-SILICONE DEFOAMER, NO SILICONE SPOTS. *HIGH TEMPERATURE RESISTANCE. *EXCELLENT FOAM SUPPRESSION. *SMALL ADDITION AMOUNT. *GOO...
      Shenyang Rise Surface Technologies Co., Ltd.·lee amy
      0:28
    • Polyether defoamer is a magic tool for the fermentation industry
      Oct 30, 2024 — There are both hydrophilic groups and hydrophobic groups in its molecular structure. This special structure enables po...
      Zilibon Chemical
    • CN101638868A - Polyether defoamer - Google Patents
      A polyether defoamer is a defoamer that can be used in papermaking processes such as: * Pulping * Papermaking * Coating * Slurryin...
      Google Patents
    • Defoamers for the Pulp & Paper Industry - Applied Material Solutions
      Jun 8, 2020 — Lignin, rosin and fatty acid soaps, and hemicellulose are commonly formed during the pulping process, resulting in high...
      Applied Material Solutions
    • Polyether-Based Defoamer - Amazon Chemicals
      Azpc® Pe-D01 – Polyether-Based Defoamer for Water-Based Paper Systems. Azpc® Pe-D01 is a high-efficiency polyether defoamer design...
      Amazon Chemicals
    • Defoamers in Papermaking - Amazon Chemicals
      Polyether-based antifoams ... These second-generation agents resist high temperatures and strong acids or alkalis. You benefit fro...
      Amazon Chemicals
    • High-Efficiency Polyether Defoamer for Papermaking & Coating
      Our polyether defoamer is a non-silicone, high-performance solution designed to effectively eliminate and suppress foam in paperma...
      NINGBO INNO PHARMCHEM CO.,LTD.
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    Scholarly articles for polyether defoamer for papermaking

    … of surfactants in papermaking industry and future … - ‎Wang - Cited by 35
    … of different alkyl alcohol polyethers as the defoamers … - ‎Qiao - Cited by 16

    Polyether Defoamers


    ywlchemical.com
    https://ywlchemical.com › defoamers › why-choose-us
    ywlchemical.com
    https://ywlchemical.com › defoamers › why-choose-us
    Product Overview: INVINO offers a comprehensive range of Polyether Defoamers, including standard EO/PO Block Copolymers and high-performance Polyether Esters.Read more

    Polyether Defoamer For Paper Industry


    xiamen rickman chemical technology co., ltd
    https://www.rickmanchemical.com › polyether-defoamer...
    xiamen rickman chemical technology co., ltd
    https://www.rickmanchemical.com › polyether-defoamer...
    RK-500P is a polyether ester defoamer, which suitable used in mid-low temperature conditions,. it's widely used in general industrial sewage treatment and RO ...Read more

    Non-silicone EOPO polyether Defoamer for paper making ...


    Shenyang Rise Surface Technologies Co., Ltd.
    https://www.risechemical.com › product › non-silicone-e...
    Shenyang Rise Surface Technologies Co., Ltd.
    https://www.risechemical.com › product › non-silicone-e...
    DEFOAMER ANTIFOAM CHARACTERISTICS · Excellent Foam Suppression Antifoam · High Temperature Resistance · Good Dispersion · Small Addition Amount · No Adverse ...Read more
    4.7(95)

    Polyether-Based Defoamer


    Amazon Chemicals
    https://www.amazon-chem.cn › Process Chemicals
    Amazon Chemicals
    https://www.amazon-chem.cn › Process Chemicals
    Azpc® Pe-D01 is a high-efficiency polyether defoamer designed specifically for water-based paper production processes. Developed for stable, long-lasting ...Read more

    Selection of defoamer in papermaking process


    antifoamchemical.com
    https://www.antifoamchemical.com › blog › selection-of-...
    antifoamchemical.com
    https://www.antifoamchemical.com › blog › selection-of-...
    Nov 15, 2023 — Polyether defoamer is a non-ionic surfactant with outstanding anti-foaming ability. The advantages of polyether defoamers are: 1. Polyether ...Read more

    AFP-100C Polyether Defoamer for Papermaking White ...


    Shanghai Guanru Chemical Co., Ltd.
    https://www.guanruchem.com › ... › Paper and pulp
    Shanghai Guanru Chemical Co., Ltd.
    https://www.guanruchem.com › ... › Paper and pulp
    It is primarily used in papermaking whitewater systems, effectively removing fine bubbles between fibers without affecting paper surface quality. It is widely ...Read more

    Defoamer for Paper Industry | Long-lasting Foam ...


    wotai
    https://wotaichem.com › defoamer-for-paper-industry
    wotai
    https://wotaichem.com › defoamer-for-paper-industry
    Yuanwang Company offers different defoamers tailored to various stages of foam generation, from pulping to wastewater treatment stage.Read more

    The role of polyether defoamer in the papermaking industry


    Zilibon Chemical
    https://www.zilibon.com › newShow_784
    Zilibon Chemical
    https://www.zilibon.com › newShow_784
    Polyether defoamer have excellent defoaming and anti-foaming properties. Its molecular structure contains a large number of polar groups such as long-chain ...

    Optimizing Paper Production: The Role of Polyether ...


    NINGBO INNO PHARMCHEM CO.,LTD.
    https://www.nbinno.com › ... › Polyether Defoamer
    NINGBO INNO PHARMCHEM CO.,LTD.
    https://www.nbinno.com › ... › Polyether Defoamer
    Dec 12, 2025 — These defoamers work by reducing the surface tension of the foam lamellae, causing them to rupture and the foam to collapse rapidly. One of the ...Read more

    Polyether Polyol for Defoamer


    Zibo Dexin Lianbang Chemical Industry Co., LTD
    https://en.china-polyol.com › products › defoamer
    Zibo Dexin Lianbang Chemical Industry Co., LTD
    https://en.china-polyol.com › products › defoamer
    It can also be used as an anti-foaming component in the manufacture of papermaking chemicals and for defoaming in the production and use of rosin sizing agents.Read more
    4.7 · Review by 毛敏

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