Overview
Linoleamide is a fatty acid amide derived from linoleic acid, a polyunsaturated omega-6 fatty acid. It is widely used in industrial and cosmetic applications due to its lubricating and emulsifying properties. As a non-ionic surfactant, it reduces friction and improves processing efficiency in plastics and coatings. Unlike simpler fatty acid amides, linoleamide's unsaturated structure enhances its compatibility with polymers and organic matrices. It is synthesized through the reaction of linoleic acid with ammonia or amines, yielding a waxy solid with low toxicity and high stability under typical processing conditions.
Physical and Chemical Properties
Linoleamide appears as a white to off-white waxy solid with a melting point range of 45-50°C. Its molecular structure includes two double bonds (at the 9 and 12 positions), contributing to its reactivity in oxidation reactions and its flexibility as a plastic additive. The compound is hydrophobic, dissolving readily in organic solvents like ethanol and acetone but insoluble in water. Its non-ionic nature makes it compatible with a wide range of formulations without disrupting ionic balances. Thermal stability is moderate, with decomposition occurring above 200°C, making it suitable for most industrial processing temperatures.
Main Applications
In plastics manufacturing, linoleamide acts as a slip agent and anti-blocking agent, reducing surface friction in polyolefin films and molded parts. It is also used as a lubricant in PVC processing and as a dispersant for pigments. The personal care industry employs linoleamide in creams and lotions for its emulsifying properties and skin-conditioning effects. In industrial applications, it serves as a corrosion inhibitor and mold-release agent. Emerging uses include bio-based lubricants and sustainable polymer additives, aligning with green chemistry trends.
Safety and Storage
Linoleamide is generally regarded as safe for industrial use, with no significant acute toxicity reported. However, dust inhalation should be avoided, and PPE (gloves, safety glasses) is recommended during handling. Storage requires protection from moisture and oxidation. Keep containers tightly sealed in a cool, dry environment away from strong oxidizers. Shelf life typically exceeds two years when stored properly. Spills should be contained with inert absorbents and disposed of following local regulations for non-hazardous waste.
B2B Procurement Guide
When sourcing linoleamide, prioritize suppliers that provide detailed certificates of analysis (CoA) specifying purity (95% minimum) and residual solvent levels. Bulk purchases (500kg+) often reduce costs by 10-15%, but verify storage capacity to avoid degradation. For specialty applications (e.g., cosmetics), request food-grade or USP-grade variants. Spot-check shipments for consistency in color and odor, as impurities may indicate improper storage or aging. Leading manufacturers are located in China, India, and the EU, with prices typically ranging from $10-$20/kg for standard grades.
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