Octadecylamine Polyoxyethylene Ether AC-1812 is a multifunctional surfactant with both nonionic and cationic characteristics under acidic conditions, widely used in textile dyeing and printing, plastics, pesticides, metal processing and other fields.
Detailed Description
Octadecylamine Polyoxyethylene Ether AC-1812 (CAS No.: 26635-75-6) is a nonionic surfactant prepared by the addition reaction of octadecylamine with ethylene oxide (12EO). Its chemical name is Polyoxyethylene (12) octadecylamine, also known as PEG-12 Stearylamine, Ethoxylated Stearylamine (12EO), Leveling Agent AC-1812, Antistatic Agent AC-1812, etc. The product appears as a light yellow to yellow paste or viscous liquid with good water dispersibility.
The molecular structure of this product is unique, possessing both a long-chain octadecyl hydrophobic group and a polyoxyethylene hydrophilic chain segment. This structure endows it with dual ionic characteristics: under neutral or alkaline conditions, it exhibits nonionic nature, ensuring excellent system compatibility; while under acidic conditions, it protonates to exhibit cationic characteristics, showing strong affinity for negatively charged surfaces (such as fibers, metals, plastics, etc.), thereby achieving efficient adsorption and functional modification.
AC-1812 is produced by Haian Guoli Chemical Co., Ltd. (Guoli Chemical) and managed as a general chemical. Under original sealed, cool and dry storage conditions, its shelf life is two years from the production date. The product has excellent acid and alkali stability, outstanding hard water resistance, good thermal stability, and is suitable for harsh process conditions such as high-temperature and high-pressure dyeing.
Key Properties
- Excellent emulsifying and dispersing ability: Efficient emulsification and stable dispersion of various oil phases and hydrophobic substances
- Acid and alkali stability: Maintains stable performance over a wide pH range, adapting to acidic to alkaline working conditions
- Hard water resistance: Maintains excellent surface activity in high-hardness water environments, unaffected by calcium and magnesium ions
- Dual ionic characteristics: Nonionic nature ensures system compatibility; under acidic conditions, cationization imparts strong affinity for negatively charged surfaces
- Multifunctional integration: Combines multiple functions such as emulsification, dispersion, antistatic, smoothing, and corrosion inhibition
- Good thermal stability: Suitable for high-temperature processing techniques, such as high-temperature and high-pressure dyeing of polyester fibers
Technical Parameters
Based on Guoli Chemical's product database, the main technical parameters of this product are as follows:
| Parameter | Specification/Description |
|---|
| Chemical Name | Polyoxyethylene (12) octadecylamine / Octadecylamine polyoxyethylene (12) ether |
| CAS No. | 26635-75-6 |
| Product Type | Nonionic surfactant (exhibits cationic characteristics under acidic conditions) |
| Appearance | Light yellow to yellow paste or viscous liquid |
| EO Number | 12 |
| Water Dispersibility | Good |
| Ionic Characteristics | Nonionic (exhibits cationic under acidic conditions) |
| HLB Value | No data available |
| Cloud Point | No data available |
| Hydroxyl Value | No data available |
Application Recommendations
AC-1812 has a wide range of applications. The following are specific usage suggestions for various fields:
- Textile high-temperature and high-pressure leveling: Used as an efficient leveling agent in high-temperature and high-pressure dyeing processes for polyester and its blended fabrics, improving dye dispersion, ensuring uniform color, and reducing the risk of color spots.
- Synthetic fiber spin finish: Added to spin finish formulations to provide antistatic properties and fiber smoothness, reducing inter-fiber friction, improving spinnability and final product quality.
- Plastic antistatic treatment: Incorporated into plastic substrates via internal addition to reduce surface resistivity over the long term, preventing static accumulation, suitable for packaging films, electronic device packaging, etc.
- Metal surface cleaning and protection: Used for surface cleaning, acid pickling corrosion inhibition, and rust prevention of metal workpieces, forming a protective film to slow down corrosion.
- Pesticide formulations: Functions as an emulsifier and dispersant in pesticide emulsifiable concentrates, microemulsions, and aqueous suspensions, enhancing formulation stability and application efficacy.
- Leather processing: Used as a fatliquoring auxiliary and dye leveling agent, improving leather softness and dye uptake uniformity.
- Paper industry: Promotes ink detachment in waste paper deinking processes, while aiding fiber dispersion, improving pulp cleanliness and paper formation uniformity.
Precautions
- It is recommended to wear dust masks, chemical safety goggles, and chemical-resistant gloves, and long-sleeved protective clothing during operation.
- Keep the workplace well-ventilated. Eating, drinking, and smoking are strictly prohibited in the work area.
- Avoid contact with strong oxidizers, strong acids, and strong bases to prevent violent reactions.
- Store in a cool, dry, well-ventilated warehouse at temperatures below 35°C, away from direct sunlight and drastic temperature fluctuations.
- Keep packaging containers tightly sealed. Immediately reseal after opening to prevent moisture absorption or contamination.
- In case of skin contact, immediately wash with plenty of soap and running water for at least 15 minutes; in case of eye contact, rinse with running water for at least 15 minutes and seek medical attention promptly.
