Stearyl Alcohol Polyoxyethylene Ether AC-1820 (CAS No.: 26635-75-6) is produced by the polymerization modification of octadecyl fatty amine with ethylene oxide. Its core advantage lies in its dual ionic property: it behaves as a stable nonionic surfactant under neutral and alkaline conditions, while in acidic media, the tertiary amine group protonates and converts it into a cationic surfactant. This characteristic provides high application flexibility in complex formulation systems, enabling it to meet the dual requirements of emulsion stability and substrate adsorption.
In the textile printing and dyeing industry, AC-1820 is a key component of leveling agents for acid dyes, effectively controlling the dye uptake rate and preventing color spots and uneven dyeing. It is especially suitable for dyeing processes of wool, nylon, and their blended fabrics. In the agricultural chemicals field, it serves as an efficient emulsifier in pesticide emulsifiable concentrates, aqueous emulsions, and microemulsion formulations, maintaining good emulsion stability even in hard water and under wide temperature conditions.
Additionally, AC-1820 combines emulsification and corrosion inhibition functions in industrial cleaning, forming a protective film on metal surfaces to inhibit acid corrosion; in the field of synthetic materials, it can be used as an antistatic agent, utilizing its cationic adsorption property to eliminate static accumulation; it is also applied in mineral flotation and asphalt emulsification processes.
| Application Industry | Specific Process/Use | Function Description |
|---|---|---|
| Textile Printing and Dyeing | Leveling agent for acid dyes, leveling agent for wool/nylon fabrics | Slows down dye uptake rate, eliminates color spots and uneven dyeing, improves dyeing uniformity and color fastness |
| Agricultural Chemicals | Pesticide emulsifier (emulsifiable concentrates, aqueous emulsions, microemulsions) | Provides excellent emulsion stability, enhances wetting, spreading, and adhesion of the spray solution on plant leaves |
| Industrial Cleaning | Industrial cleaning agents, metal parts cleaning | Strong emulsification, dispersion, and penetration performance, effectively removes oil, wax, and carbon deposits |
| Metal Processing | Cutting fluids, grinding fluids, corrosion inhibitors | Forms a protective film to inhibit corrosion of steel, aluminum, and other metals, with lubricating and anti-rust functions |
| Synthetic Materials | Antistatic agent for synthetic fibers and plastics | Reduces surface resistivity of materials, quickly dissipates static charges, provides durable antistatic performance |
| Mineral Processing | Collector for mineral flotation, froth auxiliary agent | Improves bubble attachment and mineralization effect, enhances recovery rate and grade of target minerals |
| Road Construction | Asphalt emulsifier | Promotes stable dispersion of asphalt in water, producing cationic or nonionic emulsified asphalt |
Suggestions for different application scenarios: