PEG600DO (polyethylene glycol 600 dioleate) is usually used as an emulsifier, dispersant or lubricating component directly added to the formulation. The specific addition method varies by application field; there is no unified precise dosage data in the database. The general recommended dosage range is 1%~10% (based on the total formulation weight), and the optimal ratio should be determined through experimental optimization.
Detailed Explanation
PEG600DO is a nonionic surfactant with an HLB value of 10~11. It can be dispersed in water and is soluble in solvents such as ethanol and acetone. In practical use, it is usually added to the oil phase and stirred evenly, then slowly added to the water phase under stirring for emulsification. For creams and lotions, PEG600DO can be blended and melted with the oil phase components at 60~75°C, then high-speed homogenized with the water phase to form a stable system after cooling. This product can be used alone as the primary emulsifier or combined with high-HLB emulsifiers (such as PEG-40 hydrogenated castor oil) to broaden the emulsification application range.
Due to the low foam characteristics and good acid and alkali resistance of PEG600DO, it can be directly added to base oil or solvent systems in metalworking fluids and industrial cleaners, stirred evenly, and then diluted with water. In textile oils, it is usually used synergistically with antistatic agents and smoothing agents, formulated into a working solution, and applied to fiber surfaces via pad or spray methods. In pesticide formulations, it is often used as a co-emulsifier for microemulsions or emulsions, and needs to be mixed and processed with the pesticide active ingredient, solvents, and other additives under shear conditions.
Technical Parameters
| Parameter | Value |
|---|
| HLB value | 10~11 |
| Critical micelle concentration | 0.01~0.1% (w\/v) |
| Cloud point | 55~65°C |
| Density (20°C) | 1.11~1.13 g\/cm³ |
| Kinematic viscosity | 150~250 mm²\/s |
| Active content | ≥99% |
| pH of 1% aqueous solution | 5.0~7.0 |
| Diester content | ≥95% |
| Acid value | ≤2 mgKOH\/g |
| Saponification value | 90~110 mgKOH\/g |
| Flash point | ＞200°C |
Application Suggestions
The following are reference usage methods and recommended dosages for various fields (source: application field descriptions in Guoli Chemical database and general formulation experience; specific amounts need to be verified through experiments):
- Cosmetic creams\/lotions: Used as primary or auxiliary emulsifier, recommended dosage 1%~5%. Add to the oil phase during operation, heat and melt at 60~75°C, then homogenize with the water phase.
- Textile chemical fiber spinning oils: Used as smoothing and antistatic component, recommended effective concentration 1%~3%, prepare working solution for pad or spray application; specific dilution ratio depends on the process.
- Metalworking fluids (cutting fluids\/grinding fluids): Used as emulsifying lubricating component, recommended dosage 3%~8%, directly mixed into base oil and then diluted with water to prepare working solution.
- Pesticide microemulsions\/emulsions: Used as emulsification adjuvant, recommended dosage 3%~10%, mixed and processed with pesticide active ingredient and solvents under shear.
- Industrial cleaners: Used in degreasing formulations, recommended dosage 1%~5%, directly added to the formulation system and stirred evenly.
Precautions
- Dissolution operation: This product can be dispersed in water but not completely dissolved. When preparing emulsions, it is recommended to first dissolve in the oil phase or solvent, then mix with water for emulsification. The oil phase temperature should be controlled at 60~75°C.
- Combination suggestion: HLB value is 10~11, suitable for O\/W emulsions; if emulsifying polar or light oils, it is recommended to combine with higher HLB emulsifiers to improve stability.
- Personal protection: It is recommended to wear chemical safety glasses and impermeable gloves (such as nitrile rubber) during operation, avoid prolonged direct skin contact, and maintain good ventilation in the workplace.
- Storage conditions: Store sealed in a cool, dry place at 5~40°C, away from strong oxidizers. After opening the lid, seal immediately and keep the container upright.
- Optimization verification: The above dosages are reference ranges. The optimal amount is affected by the oil phase type, water phase ratio, and processing technology in different formulations. It is recommended to determine the final formulation through orthogonal experiments or response surface optimization.
