Emulsifier S-185/O-5 (fatty alcohol polyoxyethylene ether) is a nonionic surfactant, appearing as a white to light yellow paste. With its excellent emulsifying, wetting, dispersing, and solubilizing capabilities, it has become an indispensable functional additive in many industrial formulations. This product exhibits superior chemical resistance, enduring acids, alkalis, and hard water, and shows good compatibility with anionic, cationic, and other nonionic surfactants, allowing flexible adaptation to various complex formulation systems.
Its core value lies in effectively reducing interfacial tension and enhancing the stability of multiphase systems. Whether in aqueous or oily media, S-185/O-5 can accelerate the spreading and penetration of liquids on substrate surfaces, ensuring uniform distribution of active ingredients, thereby significantly improving the performance and storage stability of end products.
The following details its specific process applications in six major fields.
| Industry Field | Specific Process/Product | Functional Role |
|---|---|---|
| Pesticide Formulations | Emulsifiable Concentrate (EC), Emulsion in Water (EW), Microemulsion (ME) | Provides excellent emulsifying and dispersing properties, enhances formulation stability, ensures uniform distribution of pesticide active ingredients during dilution and use, improving efficacy. |
| Industrial Hard Surface Cleaning | Metal cleaners, Plastic surface cleaners | Strong emulsifying and stripping ability for oil stains such as mineral oils and animal and vegetable oils, improving cleaning efficiency. |
| Metalworking Fluids | Cutting fluids, Grinding fluids, Rolling fluids | Acts as an emulsifier and lubricating component, helping form stable emulsions, reducing friction and wear, while improving cooling and rust prevention properties. |
| Textile Printing and Dyeing | Scouring agents, Leveling agents, Finishing auxiliaries | Effectively disperses oil stains and impurities on fibers, promotes uniform dye uptake, improving printing and dyeing quality and fabric feel. |
| Leather Processing | Degreasing process, Fatliquoring process | Efficiently emulsifies natural oils during degreasing; promotes uniform oil penetration during fatliquoring, enhancing leather softness and feel. |
| Coatings and Inks | Water-based coatings, Water-based inks, Pigment dispersion | Helps stabilize dispersion of resins and pigments in aqueous phase, improving leveling, storage stability, and film formation properties. |
In different processes, the recommended dosage of S-185/O-5 is typically 1% to 10% of the total formulation, which should be optimized based on the oil-to-water ratio of the system, target emulsification effect, and type of co-additives. In pesticide microemulsions, it is often compounded with anionic emulsifiers (such as calcium salts) to achieve optimal clarity and stability; in metal cleaners, it can synergize with nonionic or anionic surfactants.
Since the product is a paste at room temperature, it is recommended to preheat it appropriately (30°C to 40°C) before use for easier handling and dispersion, or use a melt-in method to add it to the formulation system.