Question

What are the advantages of emulsifier A-110, oleic acid polyoxyethylene ester, OEO-110 compared with other similar products?

Answer
According to the technical data of Guoli Chemical, the core advantages of emulsifier A-110 (oleic acid polyoxyethylene ester, OEO-110) lie in its characteristics of **"high efficiency with low dosage, broad chemical tolerance, and multi-functional integration"**, making it a very balanced non-ionic surfactant. Compared with similar oleic acid ester products on the market, A-110 has a more refined design in hydrophilic-lipophilic balance, thus showing outstanding performance in emulsification efficiency, system compatibility, and formulation simplification. The following are specific advantages: ### 1. High-Efficiency Emulsification and Low Dosage A-110 has a moderate hydrophilic chain length, capable of quickly emulsifying various animal and vegetable oils, mineral oils, and organic solvents. - **Comparative Advantage**: At the same dosage, the oil-in-water (O/W) emulsion formed by A-110 has finer particle size and higher stability. This means formulators can reduce the total amount of additives while maintaining emulsification effect, thereby controlling costs. - **Specific Data**: Its HLB value is **11-12**, critical micelle concentration (CMC) is approximately **1.3×10⁻⁴ mol/L**, and surface tension can be reduced to about **30 mN/m** (1% aqueous solution, 25°C), showing extremely high surface activity. ### 2. Broad Chemical Tolerance and High Compatibility - **Resistance to Acid, Alkali, and Hard Water**: A-110 remains structurally stable in acid, alkali, and high-hardness water, without precipitation or stratification. Although this product is not resistant to strong alkali (as indicated in the database), its chemical stability far exceeds that of ordinary ester products in conventional industrial environments with medium to low alkalinity. - **Excellent Compatibility**: As a non-ionic surfactant, it can be formulated with anionic, cationic, and other non-ionic surfactants in any proportion for synergistic effects. This provides great flexibility for constructing complex composite formulation systems, which is not available with general single-function additives. ### 3. Multi-Functional Integration, Simplifying Processes A-110 integrates functions such as **emulsification, solubilization, lubrication, and antistatic** into one, making it a "versatile" product. - **In the Textile Field**: It is not only a core emulsifying component in wool oils and spinning oils but also provides smoothness and antistatic properties, reducing fiber breakage. - **In Metalworking Fluids**: It can emulsify base oil while providing additional lubricity and extreme pressure performance to protect tools. - **In Emulsion Polymerization**: It can participate in polymerization as a reactive emulsifier, providing stability while improving the adhesion, water resistance, and film-forming properties of the final polymer. This is because its monoester content is **≥95%**, effective content **≥99%**, with very few impurities, minimizing interference with polymerization reactions. ### 4. Low Foam and Environmental Safety - **Low Foaming**: This product generates low foam during application and defoams quickly, especially beneficial for industrial cleaning and circulating systems, effectively preventing overflow and foam entrainment. - **Safety and Environmental Friendliness**: The product has an acute oral toxicity (LD₅₀, rat) **>2000 mg/kg**, which is practically non-toxic; it is also easily biodegradable, meeting increasingly stringent environmental regulations, with a large safety margin during handling and use. ### Quick Technical Parameters | Parameter Item | Technical Indicator | Advantage Interpretation | | :--- | :--- | :--- | | **Ionic Type** | Non-ionic | Extremely strong compatibility, unaffected by hard water, acid, or alkali | | **HLB Value** | 11-12 | Specifically designed for O/W (oil-in-water) systems, stable emulsification | | **Effective Content** | ≥99% | High active matter, low dosage, high efficiency | | **Monoester Content** | ≥95% | Few diester by-products, purer emulsification, especially suitable for emulsion polymerization | | **Cloud Point (1% Aqueous Solution)** | 75-85°C | Can withstand higher temperature emulsification processes | | **Appearance** | Light yellow to yellow liquid or paste | Good product consistency, easy to pump and measure | ### Application Suggestions - **Recommended Dosage**: As the main emulsifier, the recommended addition amount is **5% - 15%** of the total oil phase (substance to be emulsified) in the formulation. The optimal dosage should be determined through gradient experiments. - **Application Fields**: Textile oils, pesticide emulsifiable concentrates/water emulsions, metal cutting fluids, cosmetic creams, industrial cleaners, and acrylate/styrene-acrylic emulsion polymerization. **Precautions**: This product is not resistant to strong alkali. For applications requiring long-term exposure to high pH (e.g., pH>12) environments, a stability assessment should be conducted in advance, or other alkali-resistant emulsifiers should be considered.