Overview
Oleamide additive is a fatty acid amide derived from oleic acid, commonly used as a slip and anti-blocking agent in polymer processing. It migrates to the surface of plastics and films, reducing friction and improving handling properties. Its non-toxic nature and compatibility with various polymers make it a preferred choice in packaging and industrial applications. The additive is synthesized through the reaction of oleic acid with ammonia, resulting in a waxy solid with low volatility. It is particularly effective in polyolefins like polyethylene (PE) and polypropylene (PP), where it enhances surface smoothness and prevents film sticking during production and storage.
Physical and Chemical Properties
Oleamide exhibits a melting range of 68-79°C, making it suitable for most thermoplastic processing temperatures. Its low solubility in water and high solubility in organic solvents like ethanol and acetone allow for easy incorporation into polymer matrices. The additive's molecular structure, featuring a long hydrocarbon chain and an amide group, contributes to its surface-active properties. Thermal stability is another key characteristic, with oleamide remaining effective even at elevated processing temperatures. Its density of approximately 0.9 g/cm³ ensures uniform dispersion in molten polymers, while its waxy texture facilitates handling and dosing in industrial applications.
Main Applications
The primary use of oleamide additive is in the plastics and packaging industries, where it serves as a slip agent for films and molded products. It reduces surface friction, enabling easier processing and preventing blocking (unwanted adhesion between film layers). This is particularly valuable in food packaging, shrink films, and agricultural films. In rubber manufacturing, oleamide acts as a lubricant and release agent, improving mold flow and demolding efficiency. It also finds applications in coatings and inks, where it enhances surface properties and printability. The additive's versatility extends to masterbatch formulations, where it is pre-dispersed in carrier resins for convenient use.
Safety and Storage
Oleamide is generally considered safe for industrial use, with low toxicity and minimal environmental impact. However, standard precautions should be taken to avoid dust inhalation and prolonged skin contact, as with any fine particulate material. Proper ventilation is recommended during handling and processing. Storage should be in a cool, dry environment, preferably in sealed containers to prevent moisture absorption and contamination. The material is stable under normal conditions but may degrade if exposed to excessive heat or strong oxidizing agents. Shelf life typically exceeds two years when stored correctly.
B2B Procurement Guide
When procuring oleamide additive, buyers should specify purity levels (typically 95-99%) and particle size distribution, as these factors influence performance in end applications. Technical datasheets should be reviewed for compatibility with specific polymer systems and processing conditions. Bulk purchases (tonnage quantities) often attract discounts, but sample testing is recommended to verify performance before large-scale procurement. Reputable suppliers should provide certificates of analysis (CoA) and material safety data sheets (MSDS). Consider suppliers with experience in polymer additives and those offering technical support for formulation optimization.
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