Fatty amine polyoxyethylene ether AC-1860 (CAS No.: 26635-92-7) is a nonionic surfactant with an HLB value as high as 18. It appears as a light yellow to yellowish-brown solid at room temperature (melting point approximately 35~45°C), easily soluble in water and organic solvents. Due to the presence of tertiary amine groups in its molecular structure, it can protonate in acidic media, exhibiting cationic characteristics, which makes it outstanding in emulsification, dispersion, leveling, and other fields.
Pretreatment Before Use: Since the product is solid or paste, it is recommended to first heat AC-1860 to 40~50°C to melt and fluidize it, or pre-dissolve it in warm water (about 50~60°C) with stirring to prepare a 10%~20% stock solution, then add it to the formula system as needed. The cloud point of this product is above 100°C, offering excellent high-temperature resistance and suitability for harsh process conditions such as high-temperature and high-pressure dyeing. Its low-foaming property makes it particularly suitable for use in circulating pump or jet systems, avoiding foam issues.
Key Points for Addition Sequence: When preparing emulsions or dispersions, AC-1860 is usually first dissolved in the aqueous phase, stirred evenly, and then the oil phase is added for emulsification; in textile leveling applications, it is recommended to thoroughly mix the product with the dye bath before adding the dye to achieve the best retarding effect. The product has excellent resistance to acids, alkalis, and hard water, maintaining stable surface activity within the pH range of 3~12.
| Application Field | Recommended Dosage (based on total formula weight) | Key Usage Methods |
|---|---|---|
| Textile Leveling Agent | 1%~3% | Pre-dissolve in the dye bath, add before dyeing, can be used with electrolytes like sodium sulfate |
| Industrial Liquid Detergent | 2%~5% | Used as main surfactant or compounding component, synergistic with anionic surfactants |
| Metalworking Fluid | 1%~3% | As emulsifier and corrosion inhibitor component, first dissolve in water phase then add oil phase for emulsification |
| Pesticide Emulsifiable Concentrate/Emulsion in Water | 3%~8% | Compounded with anionic emulsifiers (e.g., calcium salt) to improve emulsion stability |
| Chemical Fiber Spinning Oil | 5%~15% | Compounded with smoothing agents and antistatic agents to provide bundling and antistatic properties |
| Leather Degreasing Agent | 1%~2% | Used with alkaline auxiliaries, treated in warm water bath |
| Pigment/Filler Dispersion | 0.5%~2% (based on pigment weight) | Added during grinding stage to provide wetting and dispersion stability |
Note: The above dosages are general industry experience values derived from product performance parameters in the Guoli Chemical product database. The specific formula needs to be optimized through small-scale experiments to determine the best dosage.
| Parameter Item | Typical Value |
|---|---|
| Appearance | Light yellow to yellowish-brown solid (melting point approximately 35~45°C) |
| HLB Value | 18 |
| Ion Type | Nonionic (cationic in acidic media) |
| Active Content | ≥99% |
| pH Value (1% aqueous solution) | 6.0~8.0 |
| Cloud Point (1% aqueous solution) | >100°C |
| Surface Tension (1% aqueous solution, 25°C) | Approximately 30 mN/m |
| Critical Micelle Concentration (CMC, 25°C) | Approximately 0.001 g/L |
| Foam Characteristic | Low foaming |
| Alkali Resistance | Excellent |
| Solubility | Easily soluble in water and organic solvents |
| Tertiary Amine Content | ≥95% |
| Hydroxyl Value | 36~40 mg KOH/g |
| Acid Value | ≤1 mg KOH/g |
Key Points for Maximum Performance: With an HLB value of 18, AC-1860 falls into the high hydrophilicity range, making it particularly suitable for O/W (oil-in-water) emulsion systems. If strong polar oil phases need to be emulsified or microemulsions prepared, it can be compounded with low HLB emulsifiers (such as fatty alcohol polyoxyethylene ether series) to achieve wider adaptability by adjusting the compounding ratio. Under acidic conditions, the cationic property brought by protonation of its tertiary amine groups can be used for directional adsorption on negatively charged surfaces like leather and metal, enhancing treatment effects.
Typical Compounding Schemes: In pesticide emulsifiable concentrates, it is often compounded with calcium dodecylbenzene sulfonate (emulsifier 500#) in a ratio of 1:1~1:3; in textile leveling agents, it can be used synergistically with Peregal O or dispersant NNO; in metal cleaners, compounding with phosphate ester surfactants can simultaneously improve detergency and anti-rust performance.