MOA-7 (AEO-7), i.e., C12-14 fatty alcohol polyoxyethylene (7) ether, is a nonionic surfactant with medium to high degree of polymerization, appearing as a colorless to slightly yellowish transparent liquid or white paste. Its molecular structure contains both hydrophilic polyoxyethylene segments and lipophilic long-chain alkyl groups. This unique amphiphilic structure enables it to efficiently reduce oil-water interfacial tension, possess outstanding emulsifying capability, excellent wetting and penetration, and high detergency, while maintaining excellent chemical stability in a wide range of acidic, alkaline, and hard water environments, thus its application range is extremely broad.
In terms of core processes, MOA-7 is mainly used as an emulsifier to construct stable oil-in-water (O/W) emulsion systems, suitable for scenarios such as emulsion polymerization, pesticide formulations, cosmetic creams and lotions; as a wetting and penetrating agent, it significantly improves the spreading and penetration efficiency of liquids on solid surfaces, especially applicable in leveling and pretreatment processes in textile printing and dyeing; as an active component for detergency, it has strong decontamination and dispersing ability for mineral oils, animal and vegetable oils, and various industrial soils, widely used in metal hard surface cleaning, leather degreasing, and waste paper deinking processes.
| Industry | Specific Process/Application | Functional Role |
|---|---|---|
| Industrial & Domestic Cleaning | Laundry detergents, dishwashing detergents, hard surface cleaners, industrial heavy-duty cleaners | Core active component, providing detergency, emulsifying, and dispersing performance |
| Textile Printing & Dyeing | Leveling process, fiber pretreatment, scouring/de-oiling | Leveling agent, penetrating agent, de-oiling agent, ensuring uniform fiber treatment |
| Leather Industry | Raw hide degreasing, soaking process | High-efficiency degreasing agent, removing natural fats, providing clean hide for tanning |
| Metal Surface Treatment | Parts cleaning, degreasing and dewaxing, polishing paste removal | Effectively strips mineral oils, polishing waxes, and cutting fluids, also provides rust inhibition and corrosion protection |
| Personal Care & Cosmetics | Creams, lotions, cleansing oils, leave-on and rinse-off products | Emulsifier and solubilizer, constructing stable O/W emulsions, solubilizing fragrances and essential oils |
| Pesticide Formulations | Emulsifiable concentrates, microemulsions, aqueous emulsion formulations | Pesticide emulsifier, enhancing dispersibility and stability of active ingredients, improving efficacy |
| Emulsion Polymerization | Acrylic latex, styrene-butadiene latex synthesis | Emulsifier, providing micelle nucleation sites, ensuring stable polymerization and latex stability |
| Papermaking Industry | Waste paper deinking process | Deinking agent, promoting ink separation and suspension, preventing redeposition, improving whiteness |
| Oil Field Chemicals | Drilling fluids, produced water treatment, crude oil transportation | Emulsifier, viscosity reducer, paraffin inhibitor, improving oil-water interfacial tension |
In practical formulation design, it is recommended to adjust the dosage of MOA-7 according to specific process requirements. Generally, when used as an active cleaning component, the recommended dosage is 5%–20% of the total formulation; when used as an emulsifier, the dosage should be optimized based on the oil phase properties and required HLB value, typically in the range of 2%–8%; when used as a wetting and penetrating agent, adding 0.5%–3% can significantly improve spreading performance. The product has good compatibility and synergy with anionic, cationic, and other nonionic surfactants, and can be used in combination as needed to enhance overall performance.