Polyether L-42 is a non-ionic polyoxypropylene polyoxyethylene block copolymer surfactant with extremely strong defoaming and foam suppressing functions, as well as excellent emulsifying and wetting properties.
Detailed Description
Polyether L-42 (Poloxamer 122, CAS No.: 9003-11-6) is a high-performance non-ionic surfactant produced by Guoli Chemical, appearing as a colorless to light yellow transparent liquid. Its molecular structure is a block copolymer of polyoxypropylene (PO) and polyoxyethylene (EO). By precisely controlling the PO/EO block ratio and molecular weight, the product achieves a unique functional balance - possessing excellent defoaming and foam suppressing capabilities while also offering good emulsifying, wetting, and dispersing properties.
The greatest differentiating advantage of this product lies in its synergistic performance of "low foam" and "high-efficiency wetting": it can quickly break foam and inhibit foam regeneration for a long time under both dynamic and static conditions, while significantly reducing the surface tension of the aqueous system, accelerating the spreading and leveling of water film, achieving a drying and streak-free effect. In addition, it maintains high stability in acidic, alkaline, and high-hardness water environments. The molecular structure is safe and mild, showing good synergistic compatibility with various anionic, cationic, and non-ionic auxiliaries.
Technical Parameters
| Parameter | Value |
|---|
| Product Name | Polyether L-42 |
| CAS No. | 9003-11-6 |
| Alias | Poloxamer 122 / Poloxamer 122 |
| Chemical Name | Polyoxypropylene polyoxyethylene block copolymer |
| Type | Non-ionic surfactant |
| Appearance | Colorless to light yellow transparent liquid |
| Closed Cup Flash Point | >200°C |
| Hazard Classification | Non-hazardous (non-flammable, non-explosive) |
| Biodegradability | Readily biodegradable |
| Bioaccumulation | None (Log Pow < 3) |
| Aquatic Toxicity | Low toxicity |
Application Suggestions
Polyether L-42 has a wide range of applications, with core application scenarios including:
- Low-foam/controlled-foam hard surface cleaners: For industrial and domestic spray cleaning, CIP in-place cleaning systems, utilizing its low foam and strong wetting penetration to quickly remove oil stains with easy rinsing and no residue.
- Automatic dishwasher rinse aids: As a core rinse aid, it significantly reduces the interfacial tension of water on tableware surfaces, promoting rapid water film leveling and evaporation, preventing water spots and streaks, and enhancing the brightness of utensils.
- Metalworking fluids and cutting fluids: Combining lubrication, cooling, and low-foam/foam-suppressing functions, it inhibits foam generation during high-speed cutting cycles, prevents fluid overflow and pump cavitation, and ensures processing accuracy.
- Basic components of high-performance defoamers: As the core active substance of defoamers, it instantly breaks large and small bubbles in industrial processes and provides lasting foam suppression, suitable for fermentation, papermaking, water treatment, etc.
- Wetting and dispersing agents for coatings, inks, and adhesives: It reduces dynamic surface tension, enhances the wetting and encapsulation ability of resins for pigments and fillers, improves color development and adhesion, and inhibits microbubble generation.
- Pretreatment auxiliaries for textile printing and dyeing: As a penetration promoter, it accelerates the diffusion of scouring and bleaching liquids in fibers, enhances capillary effect and whiteness, and has good compatibility with enzymes and stabilizers.
- Emulsifying and dispersing agents for pesticides: It enables spontaneous formation of stable emulsions or suspensions when high-concentration technical concentrates are diluted, enhancing wetting, spreading, and adhesion of the spray liquid, improving utilization of active ingredients.
Precautions
- It is recommended to wear chemical safety goggles and protective gloves, and appropriate work clothing during operation; avoid direct contact with skin and eyes.
- The workplace should be well-ventilated to avoid accumulation of aerosols; wash hands thoroughly after operation.
- Store in a cool, dry, well-ventilated warehouse, with a recommended temperature range of 5°C to 35°C, and prevent freezing or overheating.
- Containers must be kept sealed to prevent moisture absorption and entry of foreign matter; keep away from heat sources, sparks, and open flames.
- Should be stored separately from incompatible substances such as strong oxidizers, strong acids, and strong bases.
- In case of leakage, collect with inert absorbent materials (such as sand, vermiculite) to prevent entry into drains or water bodies.
- Although the product itself is non-flammable, irritating fumes may be generated under high fire temperatures; firefighters should wear positive-pressure self-contained breathing apparatus.
