Compared with the same series of polyoxyethylene oleate products from Guoli Chemical (such as A-103, A-110), A-105 has a highly optimized number of polyoxyethylene (EO) adducts. Its HLB value is precisely controlled at 10.5, which is the golden balance point between hydrophilicity and lipophilicity, meaning it can efficiently act on both oil and water phases simultaneously. In contrast, products with lower EO addition may be too lipophilic and lack sufficient water solubility, while those with higher addition may make the system overly hydrophilic, weakening the emulsifying grip on oils. The molecular structure design of A-105 ensures that when handling mineral oils, animal and vegetable oils, and organic solvents, it can generate extremely fine and highly stable emulsions, significantly reducing the total amount of emulsifier required in the formulation.
Another outstanding advantage of A-105 is its extremely high monoester content (≥90%) and very low levels of free alcohol and diester by-products. In the production of nonionic surfactants, excessive diester content can reduce interfacial activity, while free alcohol may cause odor or irritation issues. Through precise production control, A-105 maximizes effective active components, significantly enhancing wetting and dispersing performance. At the same time, its low-foaming characteristic is a major highlight, effectively preventing equipment failure and efficiency loss caused by foam accumulation in industrial cleaning and metalworking fluid circulating washing scenarios.
In terms of safety and environmental protection, A-105 has excellent hard water resistance and insensitivity to calcium and magnesium ions. It does not produce precipitation or lose activity in hard water systems, ensuring continuity in industrial processes. Its low toxicity, low irritation, and excellent biodegradability make it suitable not only for demanding industrial textile and metalworking applications but also fully compatible with mild cosmetic creams and lotion formulations, achieving true multi-field coverage.
| Performance Indicator | Polyoxyethylene Oleate A-105 (OEO-105) Characteristics | Industry Advantage Interpretation |
|---|---|---|
| HLB value | 10.5 | Ideal range for O/W emulsifiers, with wide applicability and excellent emulsion stability for various oils and fats. |
| Monoester content | ≥90% | Extremely high active ingredient content, greatly reducing by-product interference and ensuring consistent emulsification efficiency between batches. |
| Cloud point (1% aqueous solution) | 72~76°C | Suitable for medium to high temperature processes, ensuring it does not precipitate prematurely during heating cleaning or processing, maintaining system stability. |
| Foaming characteristic | Low foam | In industrial cleaning and metalworking fluids (cutting fluids), foam issues can be avoided without adding large amounts of defoamer. |
| Surface tension (1% aqueous solution) | 30~32 mN/m | Excellent wetting and spreading ability, quickly carrying liquids or active ingredients into fine gaps or fabric fibers. |
| Acid-base stability | Acid-resistant, not alkali-resistant | Chemically very stable in acidic and neutral formulations; in strong alkaline formulations, attention is needed as ester bond hydrolysis may occur. |
| Appearance and form | Light yellow to yellow liquid or paste | Light color, no negative impact on fragrance or color formulations, good fluidity, convenient for automated pumping operations. |
Based on the HLB value and high emulsification efficiency of A-105, the following scenarios are recommended for application optimization: