| Structure |  |
|---|---|
| Formula |
C36H73ON
|
| CAS No. | 13276-08-9 |
| EC No. | 236-276-6 |
| Synonyms | Stearyl Stearamide; N-Octadecylstearamide; S 180; N-Stearylstearamide; Octadecyl stearamide; N-octadecylstearamide; n-octadecyl-octadecanamid |
Stearylstearamid
Stearylstearamide is a fatty acid amide compound derived from stearic acid, a saturated fatty acid. Its chemical formula is C₁₈H₃₆N and it consists of two stearic acid chains (C₁₈H₃₆) bound to an amide group (-NH). It typically appears as a white, waxy solid at room temperature. Stearylstearamide is known for its non-polar, hydrophobic nature, making it useful in a variety of applications where water resistance, lubrication, and surface modification are important.
Applications
- Lubricant and Release Agent: Stearylstearamide is commonly used as a lubricant and release agent in various industrial applications. It reduces friction between surfaces and prevents sticking, making it ideal for use in the manufacture of plastics, rubber, and metals. In particular, it is used as a mold release agent in plastic injection molding and as a lubricant in metal forming processes.
- Cosmetics and Personal Care: In the cosmetics industry, stearylstearamide is used in formulations for its emollient and emulsifying properties. It helps stabilize emulsions (mixtures of oil and water) and improves the texture of creams, lotions, deodorants, and other personal care products. It contributes to a smooth, non-greasy feel and can also enhance the spreadability of products on the skin.
- Textile Industry: Stearylstearamide is used as a finishing agent in the textile industry, providing a softening effect to fabrics. It also imparts water-repellent properties and reduces static electricity buildup in textiles. It can be found in fabric softeners and other textile treatments.
- Plastic Additive: In plastics and polymer processing, stearylstearamide serves as an additive to improve the processing and performance of materials. It acts as a slip agent, reducing friction between plastic surfaces, enhancing the smoothness of the material, and improving its appearance and feel. It is commonly used in polyethylene, polypropylene, and PVC formulations.
- Stabilizer in Rubber Compounds: Stearylstearamide is used in the rubber industry to improve the processability of rubber compounds. It acts as a stabilizer, helping to prevent the degradation of the rubber during processing and enhancing its resistance to wear, heat, and oxidation.
- Corrosion Inhibition: In some formulations, stearylstearamide is used as a corrosion inhibitor. When applied to metal surfaces, it forms a protective, hydrophobic layer that helps to prevent rust and corrosion, particularly in automotive and industrial applications.
- Anti-Fog Agent: Stearylstearamide can also be used as an anti-fog agent in applications where condensation or fogging is a concern, such as in lenses or optical devices. It helps to prevent water droplets from forming on surfaces, maintaining clarity.
Shelf Life
Under proper storage conditions, the shelf life is 12 months.
Health & Safety
Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).