Stearylamine Polyoxyethylene Ether AC-1830 (CAS: 26635-75-6) is a nonionic surfactant prepared by ethoxylation of stearylamine with ethylene oxide, incorporating 30 polyoxyethylene (EO) segments into the molecule. The product is primarily nonionic, but also exhibits weak cationic features due to the presence of tertiary amine nitrogen atoms. This unique dual-ionic structure endows it with excellent interfacial adsorption capacity and broad matrix affinity, which is hard to match by ordinary nonionic surfactants.
This product demonstrates outstanding application performance: it provides efficient emulsification and dispersion for various oils and hydrophobic substances, forming highly stable emulsion systems; maintains stable performance under acidic, alkaline, and high-hardness water conditions, showing strong adaptability to working conditions; effectively reduces interfacial tension, enhancing the spreading and penetration of liquids on solid surfaces. Moreover, it exhibits good compatibility with anionic, cationic, and nonionic surfactants, offering high flexibility in formulation design.
The product appearance varies with temperature, appearing as a light yellow to yellow paste or solid, which is a normal physical phenomenon and does not affect performance. It has a moderate HLB value and a high cloud point, and is widely used in textile printing and dyeing, agrochemical formulations, metal processing, daily chemicals, and industrial cleaning.
| Parameter Item | Parameter Value |
|---|---|
| Product Name | Stearylamine Polyoxyethylene Ether AC-1830 |
| CAS Number | 26635-75-6 |
| Aliases | PEG-30 Stearylamine, Stearylamine Polyoxyethylene Ether (30), N-Octadecyl Polyoxyethylene Amine |
| Ionicity | Nonionic (weak cationic) |
| Appearance | Light yellow to yellow paste or solid |
| EO Number | 30 |
| Initiator | Fatty amine (stearylamine) |
| pH Range | Wide range (stable under acidic and alkaline conditions) |
| Water Hardness Tolerance | Excellent (stable performance in high-hardness water) |
Textile Printing and Dyeing: Used as a leveling agent and antistatic agent, it improves dyeing uniformity, reduces color differences and defects, and minimizes static accumulation during synthetic fiber processing, enhancing spinnability and fabric hand feel. Dosage depends on specific process.
Agrochemical Formulations: Used as an emulsifier for pesticides, it allows oily pesticide active ingredients to be stably dispersed in water, forming uniform emulsions, enhancing the dispersion and adhesion of active ingredients, and improving efficacy.
Metalworking and Anti-rust: Acts as a corrosion inhibitor to form a protective film on metal surfaces, inhibiting corrosion; also serves as a lubricant component to improve lubrication during cutting, drawing, and other processes, reducing friction and processing temperature.
Daily Chemical Products: Used in fabric softeners and antistatic formulations, it adsorbs on fiber surfaces to improve fabric softness and rewettability, reduce static electricity on clothes, and impart a soft touch to textiles.
Industrial Cleaning: As a nonionic surfactant component, suitable for metal degreasing and hard surface cleaning formulations, providing excellent wetting, penetration, and emulsifying power, efficient oil removal, low foaming, and easy rinsing.