silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertness and low surface tension. in terms of chemical structure, dimethicone has a special structure. the main chain is an inorganic structure and is a non-polar molecule. therefore, it is incompatible with water or substances containing polar atomic groups. therefore, dimethicone has low solubility in water and oil. , high activity can be obtained with smaller amounts of dimethicone. moreover, the surface tension is lower than that of water, surfactant and general foaming liquid, and it is easy to spread on the foaming liquid surface, so it has a strong ability to eliminate and suppress foam.
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