Octadecyl polyoxyethylene ether AC-1812 is a multifunctional surfactant with both nonionic and cationic characteristics under acidic conditions, widely used in various industrial fields such as textile dyeing, plastics, metal processing, and pesticides.
Detailed Description
Octadecyl polyoxyethylene ether AC-1812 (CAS: 26635-75-6) is a nonionic surfactant prepared by ethoxylation (12EO) of octadecylamine. The product appears as a light yellow to yellow paste or viscous liquid with good water dispersibility. Its unique molecular structure combines a long-chain alkyl group (hydrophobic end) and a polyoxyethylene segment (hydrophilic end), granting the product excellent interfacial activity and broad functional adaptability.
The most significant feature of this product is its dual ionic nature: it behaves as a nonionic surfactant under neutral or alkaline conditions, offering excellent system compatibility; under acidic conditions, it exhibits cationic properties, showing strong affinity for negatively charged surfaces (such as fibers, metals, plastics, etc.), thereby enhancing adsorption and functionality. Additionally, the product possesses excellent resistance to acids, alkalis, hard water, and good thermal stability, making it suitable for high-temperature processes like high-temperature and high-pressure dyeing of polyester.
The AC-1812 produced by Haian Guoli Chemical Co., Ltd. integrates functions of emulsification, dispersion, antistatic properties, smoothing, and corrosion inhibition. It can reduce the need for multiple additives in formulations, lower overall costs, and improve process efficiency.
Technical Parameters
| Parameter | Description |
|---|
| Product Name | Octadecyl polyoxyethylene ether AC-1812 |
| Aliases | Octadecyl polyoxyethylene (12) ether, Polyoxyethylene (12) octadecylamine, PEG-12 Stearylamine, Ethoxylated stearylamine (12EO), Leveling agent AC-1812, Antistatic agent AC-1812 |
| CAS Number | 26635-75-6 |
| Product Type | Nonionic surfactant (cationic under acidic conditions) |
| Appearance | Light yellow to yellow paste or viscous liquid |
| Water Dispersibility | Good |
| Ionic Nature | Nonionic/Cationic under acidic conditions |
| EO Number | 12 |
| Shelf Life | Two years from date of manufacture (sealed original packaging, proper storage conditions) |
Application Recommendations
AC-1812 is used across multiple industrial fields. The main applications include:
- Textile Dyeing and Finishing: As an efficient leveling agent in high-temperature and high-pressure dyeing of polyester and its blends, improving dye dispersion, ensuring uniform color, and reducing the risk of uneven dyeing.
- Synthetic Fiber Processing: Added to spinning oils to provide antistatic properties and fiber smoothness, reducing fiber friction, improving spinnability and processing efficiency.
- Plastics Industry: As an internal antistatic agent, mixed into plastic substrates to reduce surface resistivity for long-term performance, preventing static buildup, suitable for packaging films, electronic components, etc.
- Metalworking and Rust Prevention: Used in metal surface cleaning, pickling inhibition, and anti-rust treatment, forming a protective film on metal surfaces to slow corrosion.
- Pesticide Formulations: Acts as an efficient emulsifier and dispersant in emulsifiable concentrates, microemulsions, and aqueous suspensions, enhancing formulation stability and application effectiveness.
- Leather Processing: Used for leveling in fatliquoring and dyeing processes, improving leather softness and uniform dye absorption.
- Paper Industry: Facilitates ink detachment in deinking processes of waste paper, while assisting fiber dispersion, improving pulp cleanliness and paper formation uniformity.
Precautions
- Store in a cool, dry, well-ventilated warehouse at temperatures below 35°C, avoiding direct sunlight and drastic temperature fluctuations.
- Keep containers tightly sealed; reseal immediately after opening to prevent moisture absorption or contamination.
- Store separately from oxidizers, acids, bases, flammable materials, as well as food and feed.
- It is recommended to wear dust masks, chemical safety goggles, chemical-resistant gloves, and long-sleeved protective clothing during handling.
- Maintain good ventilation in the work area; do not eat, drink, or smoke at the work site.
