Polyether L-44 is a nonionic surfactant composed of ethylene oxide (EO) and propylene oxide (PO) block copolymers. With its excellent emulsifying, wetting, dispersing properties and low foaming characteristics, it is widely used in multiple industries. Its chemical stability is outstanding, capable of withstanding acids, bases, and hard water environments, and it can be well compounded with anionic, cationic, and other nonionic surfactants, greatly expanding its application range.
In the polyurethane field, Polyether L-44 plays a core auxiliary role; in industrial cleaning and metalworking, it solves foam problems in many processes with its low foaming properties; while in pesticides and daily chemicals, it offers advantages in emulsification enhancement and mild skin affinity, respectively. The following details its specific uses and process value by industry.
| Application Industry | Specific Process/Use | Function Description |
|---|---|---|
| Polyurethane Industry | Flexible foam, rigid foam, semi-rigid foam formulations | As an efficient foam stabilizer, it provides emulsification, nucleation, and cell refining functions, ensuring uniform and stable foam and improving cell structure uniformity. |
| Polyurethane coatings, adhesives, and elastomers | Acts as a leveling agent and wetting agent, reducing system surface tension, improving substrate wetting, reducing surface defects such as shrinkage holes and orange peel, and enhancing coating or bonding interface quality. | |
| Industrial Cleaning | High-pressure spray cleaning, circulating cleaning processes | Used as a low-foaming surfactant, it effectively controls foam generation even under high shear conditions such as high-pressure spraying and stirring, while providing good emulsifying and cleaning ability. |
| Metalworking Fluids | Cutting fluids, grinding fluids, rust preventive fluids | Provides lubrication, wetting, and cleaning effects, helping to extend tool life and improve workpiece surface quality, with synergistic anti-rust effects. |
| Pesticide Formulations | Emulsifiable concentrates (EC), microemulsions (ME), oil-in-water emulsions (EW) | As a pesticide emulsifier, it enhances the wetting and spreading ability of the spray solution, improves the emulsification stability and dilution dispersibility of the formulation, thereby increasing the utilization efficiency of the active ingredient. |
| Personal Care Products | Creams, lotions, facial cleansers | As a mild emollient component, it provides a smooth skin feel; low skin irritation, non-sensitizing, good biocompatibility, suitable for various cosmetic formulations. |
In formulation design, it is recommended to adjust the dosage of Polyether L-44 according to different application scenarios:
The above dosages are empirical reference ranges; actual formulations should determine the optimal addition through experimentation. (Data source: Guoli Chemical product database and industry application experience)