Armeen® 18D, Molten is a distilled primary amine with a chemical structure featuring an 18-carbon hydrophobic tail. It is used as a film-forming amine for corrosion-inhibition coatings and mold release applications.
Armeen® 18D, Molten is a distilled octadecylamine (CAS number 124-30-1) derived from coconut oil, soybean oil, and tallow. It is offered in a liquid state at room temperature. It features a long, 18-carbon atom chain and is typically used as a filming amine, thickener, and boundary lubricant. As a primary amine, it is partially to completely soluble at room temperature in solvents such as methanol, ethanol, isopropanol, chloroform, carbon tetrachloride, and kerosene.
In coating applications, Armeen® 18D forms a lubricious film that repels water and imparts an organophilic characteristic. This helps protect from corrosion when applied to metal surfaces. In rubber compounding applications, Armeen® 18D is an ideal processing aid for elastomers that also provides excellent mold release properties. As Armeen® 18D is cationic, it can also impart an organophilic character to inorganic pigments, making it an ideal pigment wetting and grinding aid. The cationic nature of Armeen® 18D makes it useful as a textile finishing agent that adsorbs to organic materials, such as wool, cotton, and rayon. This amine has broad FDA approvals and can be used in applications that require food contact.
Neutralization equivalent, g/eq: 269–275
Appearance at 25°C: Liquid
Specific gravity (°C): 0.791 (60), 0.784 (70)
Chain length: C18
CAS number: 124-30-1
Solubility in water at 65°C, %: 9.3
pKb in water: 3.4
Primary Chemistry: Octadecylamine
Cationic fatty amine
Forms organophilic films that repel water
Imparts better mold release properties in rubber compounds
Facilitates easier pigment wetting and dispersion
Contains broad FDA approvals
Corrosion of metal surfaces exposed to high levels of moisture
Rubber sticking to mold during manufacturing, resulting in defects to rubber parts
Incompatibility of hydrophobic and hydrophilic materials
Rubber processing
Mold release
Pigment dispersion
Anticorrosion coatings
Metal coatings
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