Oleic Acid Polyoxyethylene Ester A-105 (OEO-105) is a nonionic surfactant synthesized from natural oleic acid via ethylene oxide addition polymerization. Its molecular structure contains both ester groups and polyoxyethylene chains, endowing it with excellent amphiphilic properties, allowing it to exhibit superior interfacial activity in both aqueous and oil-phase systems. This unique structural feature determines that A-105 can be used as an efficient emulsifier, wetting agent, and dispersant in numerous industrial fields. It also has good compatibility and synergistic effects with anionic, cationic, and other nonionic surfactants.
In industrial applications, A-105 maintains stable functionality under various complex conditions due to its excellent acid-base resistance (performance does not degrade over a wide pH range) and good hard water resistance (insensitive to calcium and magnesium ions). Meanwhile, this product is a low-toxicity substance, biodegradable, and has no obvious toxic effects on aquatic organisms, meeting increasingly stringent environmental regulations. It is an ideal choice for many enterprises to achieve green formulation upgrades.
Below are the specific process applications of A-105 in various industries, covering the core functions and typical usage scenarios of the product.
| Industry | Application Process | Core Function |
|---|---|---|
| Textile Printing and Dyeing | Pretreatment scouring, level dyeing, post-finishing softening | Wetting agent, penetrant, leveling agent, dispersant, promoting uniform moisture absorption of fibers, improving dyeing uniformity and fabric hand feel |
| Metal Processing | Formulating emulsified oils, semi-synthetic and fully synthetic cutting fluids, grinding fluids | Emulsification, lubrication, anti-rust, extending tool life, improving workpiece surface finish |
| Pesticide Formulations | Processing of pesticide emulsifiable concentrates (EC), oil-in-water emulsions (EW), etc. | Emulsifying and dispersing pesticide active ingredients, enhancing the wetting and spreading ability of the spray liquid on crop surfaces |
| Industrial Cleaning | Cleaning of metal parts, degreasing of equipment surfaces | Emulsifying and removing stubborn stains such as mineral oils and animal/vegetable oils, with low foaming characteristics |
| Leather Processing | Degreasing process of raw hides | Deeply emulsifying and removing natural fats and greases within leather fibers, achieving uniform and thorough degreasing without affecting subsequent tanning |
| Cosmetics | Formulations of creams, lotions, makeup removers, etc. | Mild emulsifier and solubilizer, providing a stable emulsification system, improving skin feel, with low skin irritation |
In actual formulation development, the recommended addition amount of A-105 varies depending on the application scenario: when used as the primary emulsifier, the recommended dosage is 2% to 8% of the total formulation; as a secondary emulsifier or wetting dispersant, 0.5% to 3% can achieve significant effects. Since A-105 has synergistic effects when compounded with various ionic surfactants, it is recommended that formulators determine the optimal ratio through gradient experiments to achieve cost optimization while ensuring performance.
For different industries, A-105 can be flexibly combined with other functional additives: in metalworking fluids, it can be compounded with rust inhibitors and extreme pressure agents; in pesticide formulations, it can be used synergistically with anionic emulsifiers (such as calcium salts) to improve emulsion stability; in industrial cleaning formulations, it can be combined with alkaline auxiliaries and chelating agents to enhance detergency.