Development history and prospects of anionic phosphate fluorosurfactants
Anionic surfactants are among the surfactants with the longest history, the largest yield and the most varieties. Anionic surfactants are classified into sulfonate and sulfate salts according to the structure of their hydrophilic groups, and are currently the main class of anionic surfactants. The various functions of surfactants are mainly manifested in the properties of changing the surface of the liquid, the liquid-liquid interface and the liquid-solid interface, wherein the surface (boundary) properties of the liquid are the most important. HaisenFA-6812 is a phosphate anionic fluorocarbon surfactant, soluble in water and polar solutions such as methanol, isopropanol, acetone, ethyl acetate, etc., insoluble in weak polar and non-polar solutions such as stupid, toluene and chloroform. It has high surface activity, stable chemical properties, excellent alkali resistance, and wetting and penetrating ability. Used in paints and coatings to improve the anti-staining and UV-resistance of the system. It is also applied to waxes and polishes to improve wetting and leveling properties to reduce shrinkage. Phosphate type anionic surfactants are a class of phosphorus-containing surfactants. These include alkyl polyoxyethylene ether phosphate salts and alkyl phosphate salts. Has good antistatic, emulsification, rust and dispersion properties. As a textile oil agent, metal lubricants, etc. are widely used in textile, chemical, metal processing and other departments. The preparation of alkyl phosphate salts with alcohols and phosphorus pentoxide is the most common method used in industrial production. In order to study the characteristics of phosphate esters and the needs of special applications, other methods are needed to obtain higher purity phosphate esters.
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