Polyether L-42 is a polyoxypropylene polyoxyethylene block copolymer ether nonionic surfactant with excellent defoaming, foam suppression, emulsifying, wetting, and dispersing functions, widely used in multiple industrial fields such as low-foam cleaning, dishware drying, metalworking, textile printing and dyeing, and others.
Detailed Description
Polyether L-42, with chemical name polyoxypropylene polyoxyethylene block copolymer ether and CAS number 9003-11-6, also known as Poloxamer 122 and Polyether L42. The product appears as a colorless to light yellow transparent liquid, belonging to the nonionic surfactant category. Its molecular structure consists of a polyoxypropylene segment providing hydrophobicity and a polyoxyethylene segment providing hydrophilicity. This block copolymer structure endows the product with unique and controllable surface activity.
As one of the core products of Guoli Chemical, the most prominent feature of Polyether L-42 is its strong defoaming and foam suppression capabilities. It can quickly break existing foam under dynamic and static conditions and inhibit foam reformation for a long time. This characteristic makes it irreplaceable in industrial cleaning, metalworking, and other foam-prone scenarios. At the same time, it also possesses excellent emulsifying ability, wetting and penetrating properties, and pigment dispersibility, showing good compatibility with various oil phases and pigment systems.
In terms of chemical stability, Polyether L-42 remains highly stable in acidic, alkaline, and high-hardness water environments, ensuring the durability of the formulation under various harsh conditions. Its molecular structure is safe and mild, with good synergy with various anionic, cationic, and nonionic auxiliaries, allowing flexible compounding. Additionally, this product has good biodegradability and low toxicity to aquatic organisms, meeting ecological safety requirements and being an environmentally friendly auxiliary.
Technical Parameters
| Parameter | Specification Data |
|---|
| Product Name | Polyether L-42 |
| Chemical Name | Polyoxypropylene polyoxyethylene block copolymer ether |
| CAS Number | 9003-11-6 |
| Aliases | Poloxamer 122 / Polyether L42 |
| Product Type | Nonionic surfactant |
| Appearance | Colorless to light yellow transparent liquid |
| Ionicity | Nonionic |
| HLB Value | Not available |
| Cloud Point | Not available |
| pH Value | Not available |
| Flash Point | >200°C (closed cup) |
| Recommended Storage Temperature | 5°C to 35°C |
| Hazard Classification | Non-hazardous, non-flammable liquid |
| Biodegradability | Readily biodegradable, no bioaccumulation |
Application Recommendations
Polyether L-42, with its multifunctional properties, has widespread and mature applications in the following fields:
- Industrial and Household Low-Foam Cleaners: Utilizing its low-foam characteristics and strong wetting power, it can quickly penetrate and strip oil stains, easy to rinse without residue, especially suitable for automatic spray cleaning equipment and easy-rinse household formulas.
- Dishware Rinse and Drying Aids: As a key drying agent, it significantly reduces the interfacial tension of water on dishware surfaces, promoting rapid film flow and evaporation, eliminating water spots and streaks, and enhancing the brightness of glass and ceramic ware.
- Metalworking Fluids and Cutting Oils: Possessing both lubricating and cooling effects, its outstanding low-foaming property suppresses large amounts of foam generated during high-speed machining cycles, preventing liquid overflow and pump cavitation, ensuring processing stability and workpiece precision.
- High-Performance Defoamer Components: As the core active substance of defoamers, it quickly breaks foam on industrial process liquid surfaces and provides long-lasting foam suppression performance, widely used in fermentation, papermaking, water treatment, and other fields.
- Coatings, Inks, and Adhesives: Used as a wetting and dispersing agent, it effectively reduces dynamic surface tension, enhances the resin's ability to wet and encapsulate pigments and fillers, improves color uniformity and adhesion, while inhibiting micro-foam formation.
- Textile Printing and Dyeing Pretreatment: As an efficient penetration promoter, it accelerates the uniform diffusion of alkali or bleach liquor in fibers, assists in removing natural waxes and impurities, and improves scouring efficiency and whiteness after refining.
- Pesticide Formulations: Exhibits excellent emulsification and dispersion performance in emulsifiable concentrates and suspension concentrates, allowing high-concentration active ingredient formulations to spontaneously form stable emulsions upon dilution, enhancing wetting, spreading, and adhesion of the spray solution on target crops.
Precautions
- When handling, it is recommended to wear chemical safety goggles and protective gloves, and appropriate work clothing to avoid direct contact with skin and eyes.
- Ensure good ventilation at the work site, and avoid generating spray or mist during operation.
- Store in a cool, dry, and well-ventilated warehouse, keeping the container tightly sealed to prevent moisture absorption and entry of foreign objects.
- Recommended storage temperature is between 5°C and 35°C to prevent freezing or overheating that may alter product properties.
- Store separately from incompatible substances such as strong oxidizers, strong acids, and strong bases.
- In case of leakage, small amounts can be handled with inert absorbent material; for large spills, contain to prevent entry into drains and collect for disposal in accordance with local regulations.
- In case of skin contact, wash immediately with plenty of soap and running warm water; for eye contact, rinse thoroughly with clean water for at least 15 minutes and seek immediate medical attention.
