Polyether L-62 is a nonionic polyoxyethylene polyoxypropylene block copolymer (Poloxamer 182), with excellent emulsifying, wetting, dispersing, and low-foaming properties as its core advantages, widely used in various industrial fields such as metalworking, cleaning, textiles, and daily chemicals.
Detailed Description
Polyether L-62 (Poloxamer 182) belongs to the class of poloxamer nonionic surfactants, formed by block copolymerization of polyoxyethylene (EO) and polyoxypropylene (PO). Its unique EO-PO-EO triblock structure imparts amphiphilicity—the balance between hydrophilic and hydrophobic groups enables excellent adsorption and oriented arrangement at the oil/water interface, thus exhibiting superior emulsifying, wetting, dispersing, and leveling properties.
As a nonionic surfactant, Polyether L-62 exhibits excellent chemical stability, resistant to acids, alkalis, and hard water, maintaining stable surface activity under complex water quality conditions and a wide pH range. Its appearance is a colorless to light yellow transparent liquid, easy to handle and compound at room temperature. Particularly notable is its low-foaming property—extremely low foam under dynamic conditions such as spraying, high-pressure cleaning, and metalworking, along with defoaming and foam-suppressing abilities. This characteristic makes it irreplaceable in industrial low-foam cleaning agents and defoamer formulations.
Furthermore, Polyether L-62 has good toxicological safety, with an acute oral toxicity LD₅₀ (rat) >2000 mg/kg, no classification for mutagenicity, carcinogenicity, or reproductive toxicity, meeting the compliance requirements for cosmetic ingredients and pharmaceutical excipients, and can be safely used in personal care and pharmaceutical formulations.
Technical Parameters
| Parameter | Value |
|---|
| Product Name | Polyether L-62 |
| Aliases | Poloxamer 182, Pluronic L-62, Poloxamer 182 |
| CAS Number | 9003-11-6 |
| Ionic Type | Nonionic |
| Appearance | Colorless to light yellow transparent liquid |
| Acid/Alkali/Hard Water Resistance | Excellent |
| HLB Value | Not available (please consult the technical department of Guoli Chemical for details) |
| Cloud Point | Not available (please consult the technical department of Guoli Chemical for details) |
| Hydroxyl Value | Not available (please consult the technical department of Guoli Chemical for details) |
| Flash Point | > 150 °C (closed cup) |
Application Suggestions
Based on the low-foaming, emulsifying, and wetting properties of Polyether L-62, the following application scenarios are recommended:
- Metalworking Fluids: As a low-foam lubricating and cooling component in cutting and grinding fluids, effectively suppressing foam generation during processing and improving workpiece surface finish.
- Industrial Low-Foam Cleaners: Provide excellent wetting, penetration, and detergency under spray and high-pressure cleaning conditions while maintaining very low foam.
- Defoamers and Antifoams: As a core raw material or synergistic component in water-based defoamer systems, providing foam breaking and long-lasting foam suppression.
- Textile Auxiliaries: Used in scouring agents and leveling agent formulations to improve fabric wetting and permeability, aiding uniform dyeing.
- Cosmetic Emulsifiers: Suitable for creams, lotions, and other formulations, providing gentle emulsification and a soft skin feel.
- Pesticide Soluble Concentrates: Enhance emulsification, dispersion, and wetting/spreading of pesticide formulations in water, improving efficacy.
- Pharmaceutical Excipients: Used for solubilization of poorly soluble drugs and for adjusting dissolution and release properties of suppository bases.
Precautions
- Safety Protection: This product is classified under GHS as skin irritant (H315), eye irritant (H319), and respiratory irritant (H335). Wear protective gloves, safety goggles, and a face shield when handling, and use in a well-ventilated area.
- Storage Conditions: Store in a cool, dry, well-ventilated warehouse, away from ignition sources and heat. Keep containers tightly sealed and avoid mixing storage with oxidizing agents and acids.
- First Aid Measures: In case of skin contact, rinse immediately with plenty of water. For eye contact, flush with running water for at least 15 minutes and seek medical attention. If inhaled, move quickly to fresh air.
- Ecological Impact: Harmful to aquatic life with long-lasting effects (H412). Dispose of waste properly and avoid discharge into water bodies.
