Fluorinated surfactants have an irreplaceable role in many fields because of their unique properties of high surface activity, good heat resistance, strong chemical stability and water and oil repellency. However, their high production cost, poor solubility and low temperature resistance limit their application to some extent. As a special type of surfactant, silicon-containing surfactants have excellent ability to reduce surface tension, good wettability and biodegradability, and are green surfactants with little environmental pollution, but their resistance to chemical media is poor. Fluorosilicone products combine the flexible curl of silicone main chain and the low surface tension of fluorine to form an interpenetrating network structure, which improves the disadvantages of fluorine and silicon materials such as difficult to cure at room temperature, poor adhesion and general strength, and achieves a complementary effect in performance. Therefore, fluorosilicone products have more unique and excellent performance than ordinary materials, and have been widely used in textile, military, automotive and other fields. Translated with www.DeepL.com/Translator (free version)
Usually fluorosilicone surfactants are polyether-modified fluorosilicone oils with the molecular structure of Si-O-Si as the main chain, fluoroalkyl groups at the side chain or both ends, and hydrophilic polyether chains at both ends or side chains.
Application of fluorosilicone surfactants
Applications in the textile industry
Organofluorosilicone surfactants are commonly used in the textile industry as finishing agents, which not only enhance the oil, stain and static resistance of textiles, but also improve their softness.
Applications in the rubber industry
By adding fluorosilicone surfactants, which can be used as coupling agents, surface modifiers and mold release agents, not only the weather resistance, resilience and mold release properties of silicone rubber are organically integrated into the rubber, but also the solvent and oil resistance properties of fluorosilicone rubber are cleverly combined with it, making fluorosilicone rubber have more very unique and excellent practical properties.
Application on oil field
Fluorosilicone surfactants have excellent properties of both fluorine compounds and silicone compounds, and they are used as oil repellents, crude oil emulsion breakers, acid corrosives, crude oil trapping agents, oil fire extinguishing agents, and fuel efficiency enhancers in oil fields, which can not only improve the efficiency of oil and gas extraction, but also improve the quality and performance of oil and gas, while fluorosilicone surfactants have a wide range of applications in emergency treatment of oil spills on the sea surface, reducing the viscosity of crude oil and regulating the acidity and alkalinity of crude oil.
Application in building materials
Fluorosilicone surfactant is often used as an additive in coatings, cement, concrete, masonry and other building materials for its advantages of low surface tension, low solubility, easy dispersion, low dosage, good foaming and non-toxic and non-hazardous. Fluorosilicone is a new type of fluorosilicone material, which can be used as defoamer in coatings even at low concentration. In addition, fluorosilicone surfactant can effectively reduce the surface tension gradient of coatings when evaporating and enhance the leveling of coatings, thus making the coating film more uniform.
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