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Three Types Of Common Polyether Defoaming Agents
Dec 14, 2018

Polyether defoaming agents were first produced and used in 1954. They have also experienced a history of about 60 years. They are widely used for their excellent characteristics such as acid and alkali resistance and hard water, good biodegradability, tasteless, and no stimulation. In China, the research and development of polyether defoaming agent is relatively slow, and the variety of polyether defoaming agent has not changed much. Now I want to introduce you to three major polyether defoaming agents:
1, GP defoaming agent
The GP polyether defoaming agent is made of glycerol as the starting agent and is made of a mixture of propylene oxide or ethylene oxide and propylene oxide by addition polymerization. Its poor hydrophilicity is not easy to dissolve in the foaming system, so it is suitable for thin fermentation liquids. Its ability to suppress bubbles is better than that of defoaming, and it is suitable for use in basic culture fluids to inhibit the production of foams during fermentation.
2, GPE type defoaming agent
The GPE-type polyether defoaming agent is then added with ethylene oxide at the end of the polypropyl alcohol chain of the GP polyether defoaming agent to become a polyoxyvinyl propylene glycerol with a hydrophilic end. Its hydrophilicity is good, it is easy to spread out in the foaming system, has strong foam elimination ability, has a large solubility, and has a short maintenance time of foam elimination activity. It is suitable for viscous fermentation liquid.
3, GPES type defoaming agent
GPES type polyether defoaming agent A new polyether defoaming agent that is coated with a hydrophobic stearate at the chain end of a GPE type defoaming agent, forming a hydrophobic chain at both ends when the intermediate interval is hydrophilic. Chain block copolymer. The molecules of this structure are easy to accumulate in the gas and liquid interface, so the surface activity is strong and the anti-bubble efficiency is high.
Although GPE-type polyether defoaming agent and GPES polyether defoaming agent are the main ones, the defoaming agent is more and more targeted to the application system. With the development of defoaming agents in modern chemical, food, and pharmaceutical industries, new high-efficiency defoaming agent varieties become more and more urgent.

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    Add:No.127, Yanzaohang Village, Xuyuanzi Township, Qingyun County, Dezhou city, Shandong Province

    Fax:+86-531-88257710

    Mob:+8618053491991

    Email:twinklesheng@gmail.com

    Web:www.masterbatch-ls.com

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