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MPEG-550
Jienuo
Product Advantage
Stable Technical Performance
MPEG-550 maintains consistent quality: its hydroxyl value (93–113 mgKOH/g) and pH (5.0–7.0) stay within strict ranges, ensuring reliable results in production. It resists heat and low volatility, reducing batch-to-batch variations for manufacturers.
Strong Compatibility
As a non-ionic surfactant, it mixes well with most organic/inorganic materials (e.g., detergents, coating components). This versatility eliminates compatibility issues in complex formulations, saving R&D time.
Multi-Functional Properties
It delivers emulsification, dispersion, wetting, and thickening effects in one product. For example, it enhances stability in cosmetics (e.g., lotions) while improving flow in industrial coatings—reducing the need for multiple additives.
Safe & Easy Handling
Non-toxic and odorless, MPEG-550 meets industrial safety standards. Its liquid/paste form at room temperature simplifies measuring and mixing, boosting operational efficiency.
Technical Specifications
Technical Parameter | Specification for MPEG-550 |
Chemical Composition | Methyl ether-ethylene oxide copolymer |
Type | Non-ionic polymer |
Appearance (at 25°C) | Colorless to pale yellow liquid or paste |
Molecular Weight (approx.) | 550 |
Hydroxyl Value | 93–113 mgKOH/g (tested by standard titration method) |
pH Value (1% aqueous solution) | 5.0–7.0 (neutral range, stable in most formulations) |
Solubility | Soluble in water, ethanol, and most common organic solvents |
Volatility | Low (minimal evaporation under normal storage conditions) |
Thermal Stability | Stable at temperatures ≤ 120°C (no decomposition under typical processing temperatures) |
Compatibility | Compatible with most organic/inorganic materials, non-ionic/anionic surfactants |
Toxicity | Non-toxic, odorless (meets industrial safety standards for technical-grade chemicals) |
Product Uses
Personal Care Products
It serves as a base material and viscosity regulator in shampoos, lotions, and skin care items. Its mild, non-irritating nature improves product texture while enhancing ingredient dispersion.
Industrial Formulations
In coatings and inks, MPEG-550 acts as an emulsifier to stabilize mixtures and improve application smoothness. It also functions as a processing aid in textile dyeing, enhancing wetting and color uniformity.
Chemical Intermediates
It can be used as a precursor in polymer synthesis (e.g., for concrete admixture monomers), leveraging its precise molecular weight (≈550) to control final product performance.
Handle MPEG-550 at room temperature (25°C) for easy pouring. Mix it into formulations gradually (stirring at 20–30 rpm) to ensure uniform dispersion—avoid high-speed stirring that may introduce air bubbles. For aqueous systems, dissolve in water first; for organic systems, pre-mix with ethanol or compatible solvents.
FAQ
What is the shelf life of MPEG-550?
It has a 2-year shelf life when stored in a cool, dry, and ventilated area (avoid direct sunlight and moisture).
Can MPEG-550 be used in food-contact products?
This grade is technical-grade; confirm with suppliers for food-grade variants if needed.
How to store MPEG-550?
Use sealed plastic drums (20kg net) and keep away from heat sources. Do not expose to extreme temperatures (below 0°C may cause solidification, which is reversible with gentle heating).
