Octadecylamine Polyoxyethylene Ether AC-1812 is a nonionic surfactant, appearing as a light yellow to yellow paste or viscous liquid (melting point approx. 30-40°C), and may be solid at lower room temperatures. If solidified due to low temperature before use, the packaging drum can be indirectly heated in a 35-40°C water bath. After the material softens, stir evenly before normal use. Direct open flame heating is strictly prohibited.
This product is readily soluble in water and organic solvents, with an HLB value of about 13.5, a cloud point ≥90°C, and excellent resistance to acid, alkali, and hard water. Under acidic conditions, it can protonate and exhibit cationic properties, showing strong affinity with negatively charged surfaces such as fibers and plastics. In practical use, it is usually first dispersed by stirring with warm water (40-50°C) at a ratio of 1:5 to 1:10 (product:water) to form a uniform solution, then added to the working bath or processing system, avoiding direct addition of the paste into cold water which may cause uneven dispersion.
| Parameter Item | Value Range | Remarks |
|---|---|---|
| Ion Type | Nonionic (cationic under acidic conditions) | Data source: Guoli Chemical Product Database |
| HLB Value | About 13.5 | Data source: Guoli Chemical Product Database |
| Cloud Point | ≥90°C (1% aqueous solution) | Data source: Guoli Chemical Product Database |
| Melting Point | About 30-40°C | Data source: Guoli Chemical Product Database |
| Amine Value | 70~85 mg KOH/g | Data source: Guoli Chemical Product Database |
| Tertiary Amine Content | ≥95% | Data source: Guoli Chemical Product Database |
| Active Content | ≥99% | Data source: Guoli Chemical Product Database |
| pH Value (1% Aqueous Solution) | 6.0~8.0 | Data source: Guoli Chemical Product Database |
| Solubility | Readily soluble in water and organic solvents | Data source: Guoli Chemical Product Database |
| Foam Characteristics | Low foaming | Data source: Guoli Chemical Product Database |
Textile High-Temperature High-Pressure Leveling Dyeing: As a leveling agent for polyester and its blended fabrics, it is recommended to pre-disperse AC-1812 in warm water at 40-50°C before adding to the dye bath. The reference dosage is 0.5~2 g/L of the working solution (the specific dosage should be determined by experiments according to the type of dye and dyeing depth). Its cationic characteristics under acidic conditions help to uniformly adhere to the polyester surface, with good high-temperature stability (cloud point ≥90°C), suitable for 120-130°C high-temperature high-pressure dyeing processes.
Synthetic Fiber Spinning Oil: As a component of the oil agent, it is recommended to be used in combination with other smoothing agents and coalescing agents, generally accounting for 10%-30% of the total solid content of the oil agent. It can be directly stirred and dissolved in the oil agent formulation. Its low foaming and antistatic effects help in the smooth bundling and winding of fibers during high-speed spinning.
Plastic Antistatic Treatment: When added internally to plastic substrates (e.g., PE, PP films), the recommended addition amount is 0.5%-2% of the resin weight. It can be premixed with resin particles and then extruded via twin-screw extrusion, utilizing its thermal stability to ensure uniform dispersion during processing. It can also be made into antistatic masterbatch for use, with a recommended masterbatch addition amount of 5%-10%.
Metal Cleaning and Rust Prevention: As an emulsifying and dispersing component in cleaning agent formulations, the recommended dosage is 2%-5% (based on the working solution). It can be compounded with anionic surfactants and alkaline auxiliaries, using its resistance to acid, alkali, and hard water to enhance cleaning effectiveness while also providing corrosion inhibition.
Pesticide Formulation Processing: As an emulsifying dispersant in emulsifiable concentrates or aqueous suspension concentrates, it is recommended to account for 3%-8% of the total formulation. It can be mixed evenly with the pesticide technical material and solvent. The HLB value of 13.5 is suitable for preparing O/W emulsion systems.
Leather Processing: In the fatliquoring and dyeing processes, the recommended dosage is 0.5%-2% of the weight of pelt or wet blue. Dissolve in warm water and add to the drum, compatible with its low foaming and leveling characteristics.