Octadecylamine polyoxyethylene ether AC-1815 (CAS: 26635-75-6) is a special nonionic surfactant. Its molecular structure contains both amine groups and polyoxyethylene chain segments (15EO). It exhibits nonionic properties under neutral or alkaline conditions, but can transform into a cationic form under acidic conditions. This unique ion characteristic conversion ability endows it with excellent emulsification, dispersion, leveling, antistatic, corrosion inhibition, and wetting functions, playing an irreplaceable role in multiple industrial fields.
In the textile printing and dyeing industry, AC-1815 is an indispensable core auxillary raw material. As a leveling agent, it exhibits excellent migration and retardation properties for acid dyes, reactive dyes, and cationic dyes, significantly reducing dyeing defects such as color spots and color differences, improving dyeing uniformity and first-pass success rate. Meanwhile, the ether bonds and amine groups in its molecular structure can impart good moisture absorption and conductivity to fabrics, effectively eliminating static electricity accumulation in synthetic fibers such as acrylic and polyester during spinning and weaving processes, reducing issues like winding and breakage.
In the field of synthetic fiber oils, AC-1815 is a key component of smoothing and bundling agents, widely used in oil formulations for fibers such as polyester, acrylic, and nylon. It can impart good cohesion and bundling properties to fibers, reduce friction coefficients between fiber and metal as well as between fibers, ensure smooth high-speed spinning and stretching processes, and provide excellent antistatic protection. In metalworking fluids, it serves as an efficient emulsifier and corrosion inhibitor, forming a firm oriented adsorption film on metal surfaces, exhibiting excellent rust prevention and corrosion inhibition capabilities for various metals such as steel, iron, copper, and aluminum, effectively extending the service life of tools and workpieces.
| Application Industry | Specific Process/Use | Core Function |
|---|---|---|
| Textile Printing and Dyeing | High-temperature leveling agent, dyeing acid, antistatic agent | Migration and retardation, static elimination, preventing color spots and color differences |
| Synthetic Fibers | Polyester/Acrylic/Nylon oil agents | Smoothing and bundling, reducing friction coefficient, antistatic protection |
| Metal Processing | Cutting fluids, grinding fluids, rust prevention fluids | Efficient emulsification, corrosion inhibition, lubrication and rust prevention |
| Pesticide Formulations | Emulsifiable concentrates, emulsion concentrates, microemulsions | Emulsification and dispersion of organophosphate/pyrethroid active ingredients |
| Daily Chemicals | Shampoo, shower gel, conditioner | Assisted emulsification, thickening, antistatic and softening |
| Coatings and Inks | Water-based and solvent-based coatings, printing inks | Pigment wetting and dispersion, preventing floating and settling |
In textile printing and dyeing applications, it is recommended to compound AC-1815 with other nonionic or anionic auxiliaries to achieve synergistic effects. Especially in high-temperature and high-pressure dyeing processes, its triple chemical resistance to acids, alkalis, and hard water maintains high activity under harsh conditions. In metalworking fluid formulations, its property of converting to cationic form under acidic conditions can be utilized to enhance adsorption film formation on metal surfaces and improve rust prevention effects. In pesticide formulations, AC-1815 shows good emulsification and dispersion capabilities for organophosphate and pyrethroid active ingredients. The recommended dosage should be determined through emulsification experiments based on the specific formulation system.
In daily chemical formulations, AC-1815 can be used as an auxiliary emulsifier and viscosity regulator, helping to stably disperse oily components such as fragrances and silicone oils, while utilizing its cationic properties to impart antistatic and softening effects to hair and skin, reducing frizz and improving dry and wet combing performance.