Basic properties and functions of surfactants

In the molecular structure of surfactant, the part that can reduce the surface tension in aqueous solution is called the active part. After the molecule dissociates in water, the active part assumes various ionic or molecular states. The active part of surfactants is composed of hydrophilic groups and hydrophobic groups (called oleophobic and hydrophilic groups in oil soluble surfactants). Hydrophobic groups usually contain cx~ C. A variety of nonpolar carbon hydrogen long-chain groups, which have the effect of repelling water. Hydrophilic groups are polar groups (such as carboxylates, sulfate salts, sulfonates, phosphates, organic amine salts, quaternary ammonium salts, polyols and long-chain polyoxyethylene, etc.), which have the effect of attracting water molecules. Table. The hydrophilic and hydrophobic groups of surfactant molecules are phenomena such as the formation of interface adsorption layer and the alignment of molecules.
Surfactants can play the role of wetting, dispersing, emulsifying, penetrating, solubilizing, foaming and washing. Surfactants are widely used in electroplating industry. Its emulsification, wetting and solubilization are used to improve the oil removal efficiency and oil removal quality of plated parts; Using its directional arrangement and adsorption on the interface between metal and solution, the crystalline structure of the coating is improved, the cathodic polarization is increased, and the dispersion ability of the coating is improved; By using its wetting effect, the precipitated hydrogen can be prevented from staying on the surface of the plated parts, so as to prevent pitting and pinholes in the coating
Guangzhou Tianying Fine Chemical Co., Ltd., founded in June 2020, is a young and dynamic company, which is committed to the research, development, production, sales and service of mild surfactants and green environmental protection industrial emulsifiers. The company is mainly engaged in daily chemical washing products (such as betaine series, amine oxide series, alkanolamide series, thickener, succinate salt series and imidazoline series products) and synthetic lotion additives (such as emulsifier products of pure styrene acrylic series lotion such as a-102, co436, cosp-1), aqueous crosslinkers, wetting agents and film-forming additives.