Polyether modified silicone defoamer is a type of silicone oil that is embedded in a special functional group capped silicone molecule. It is then emulsified at high temperature with block polyether, silicone, hydrophobic gas silicon, emulsifier, stabilizer, etc. to form lotion defoamer.
Polyether modified silicone defoamer is a defoamer with excellent defoaming performance and wide application prospects, which introduces polyether chains onto polysiloxane chains through condensation technology, combining the advantages of polyether and organosilicon defoamers. The polyethylene oxide chains in the polyether segments of polyether modified silicon can provide hydrophilicity and foaming properties, while the polypropylene oxide chains can provide strong hydrophobicity and high permeability, which has a strong effect on reducing the surface tension of defoamers.
Because the siloxane segment is lipophilic and the polyether segment is hydrophilic in the molecule of the silicone ether copolymer, the polyether modified silicon defoamer can be used for both oil-based and water-based foaming systems, and can quickly eliminate foam, and play its role of continuous foam suppression for a long time.
Polyether modified silicone oil defoamer, based on previous generations of defoamers, strives to integrate the advantages of polyether and organosilicon, introducing polyether segments into silicone oil segments to have stronger defoaming and anti foaming properties. Polyether modified silicone oil is a new type of special silicone surfactant, which is formed by the addition reaction of polyether containing double bonds and low hydrogen silicone oil. It is a unique non-ionic silicone surfactant, which retains the high and low temperature resistance, weather resistance, demolding, hydrophobicity, and physiological inertness of silicone oil, as well as the characteristics of non irritation, high surface activity, and easy dispersion of polyether. Due to its excellent heat resistance, shear resistance, acid and alkali resistance, non-toxic and odorless properties, and stable storage, polyether modified silicone oil is widely used.
Widely used for defoaming in high-temperature dyeing and fermentation processes of polyester fabrics. In addition, it can also be used for defoaming of diethanolamine desulfurization system and various oil agents, cutting fluids, antifreeze, water-based inks and other systems. It is also suitable for defoaming of uncured resin after photosensitive resin plate making in the printing industry. It is a representative, high-performance and widely used defoaming agent product.
The difference between polyether modified silicon and polyether defoamers and organosilicon defoamers is that polyether modified silicon combines the advantages of polyether defoamers and organosilicon defoamers, and is non-toxic and harmless. Harmless to bacterial strains, with minimal addition. It is a cost-effective product. Polyether modified organosilicon is a polyether siloxane copolymer (abbreviated as silicone ether polymer) prepared from polyether segments in siloxane molecules.
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MY 245