Overview
Polyether oleate is a non-ionic surfactant synthesized through the esterification of oleic acid with polyether glycols. This versatile compound combines the hydrophobic properties of oleic acid with the hydrophilic characteristics of polyether chains, making it particularly valuable in formulations requiring both lubrication and emulsification. Industrial adoption of polyether oleate has grown significantly due to its biodegradability compared to mineral oil-based alternatives. The compound's performance can be tailored by adjusting the polyether chain length, allowing manufacturers to optimize properties for specific applications ranging from heavy-duty lubricants to delicate cosmetic formulations.
Physical and Chemical Properties
The physical state of polyether oleate varies from viscous liquid to semi-solid depending on the degree of polymerization. Its viscosity typically ranges between 200-800 cP at 25°C, with higher molecular weight variants demonstrating greater thickening effects. The compound exhibits excellent thermal stability, maintaining performance up to 150-180°C without significant degradation. Chemically, polyether oleate demonstrates amphiphilic behavior due to its molecular structure. The oleate moiety provides lipophilicity while the polyether chain contributes hydrophilicity. This balance gives the compound its notable surface-active properties, with HLB values typically ranging from 8-14 depending on formulation. It shows good compatibility with most synthetic base oils and many polar solvents.
Main Applications
In metalworking fluids, polyether oleate serves as both lubricant and emulsifier, reducing friction during machining operations while maintaining stable oil-water emulsions. The textile industry utilizes it as a fiber lubricant and antistatic agent, particularly in synthetic fiber production where controlled friction is critical. The compound's emulsifying properties make it valuable in agricultural formulations, where it helps disperse active ingredients uniformly. Personal care applications include use in hair conditioners and skin creams, where it provides lubricity without greasiness. Emerging applications include biodegradable hydraulic fluids and environmentally friendly release agents for concrete forms.
Safety and Storage
While generally considered low-toxicity, polyether oleate requires standard chemical handling precautions. Skin contact may cause mild irritation in sensitive individuals, necessitating nitrile or neoprene gloves during prolonged handling. Eye protection should be worn when transferring bulk quantities. Storage recommendations include keeping containers tightly sealed in well-ventilated areas away from strong oxidizers. Bulk storage tanks should be equipped with nitrogen blanketing to prevent oxidative degradation. The material has shelf stability of 12-24 months when stored properly below 30°C. Firefighting measures for large quantities should use alcohol-resistant foam rather than water jets.
B2B Procurement Guide
Industrial buyers should specify required parameters including acid value (typically 5-15 mg KOH/g), hydroxyl value (20-100 mg KOH/g), and iodine value (40-90 g I2/100g). Viscosity requirements should be stated for critical applications, with common ranges between 200-600 cP at 40°C. Quality verification should include testing for residual catalyst content and peroxide value. For international shipments, verify whether the product is classified as hazardous material under transportation regulations. Consider suppliers who provide technical data sheets with comprehensive rheological and compatibility data. Minimum order quantities typically range from 200kg for standard grades to 1 ton for custom formulations.
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