Coconut diethanolamide, or cocamide diethanolamine (cocamide
DEA), is the common structural basis of many surfactant, often an ingredient in
personal care products such as shampoo and soap. Coconut diethanolamide
contains a hydrophobic hydrocarbon tail and a hydrophilic head, which makes it
an excellent surfactant. It is a viscous liquid and is used as a foaming agent
in bath products like shampoos and hand soaps, and in cosmetics as an
emulsifying agent. The chemical formula is CH3(CH2)nC(=O)N(CH2CH2OH)2, where n
can vary depending on the source of fatty acids.
Coconut diethanolamide is a diethanolamide made from the
reaction of the mixture of fatty acids from coconut oils with diethanolamine.
Added in shampoo and hand cleaner, it can not only stabilize
foam and thicken the liquid, but also will reduce the irritation to skin. It
will soften fiber textile. Therefore it is especially suitable for washing
animal's fiber, such as hair and thread, etc. Its applications are in liquid
detergent, shampoo, dishware detergent, liquid soap, fiber modifier, wool
cleaner and metal rinse, etc.
Cocamide DEA has good wetting, cleaning, dispersing, resistance
to hard water and antistatic performances. Especially, it has perfect
thickening, foaming, foam-stabilizing and derusting abilities. Compounded with
other anionic surfactants, such as LAS, the foaming ability will be obviously
improved, and foam is more affluent, stable and long standing. Washing effect
is also enhanced.