What are Nonionic Surfactants?
|21.4.2021||Posted by huanachemical under Advertising & Marketing|
Surfactants are composed of a hydrophilic group and a hydrophobic group. Unlike ionic surfactants, the hydrophilic groups of nonionic surfactants are not charged. Instead, their water-solubility is due to their covalently bonded oxygen-containing hydrophilic groups. The lack of charge contributes to a milder property, which makes nonionic surfactants suitable for use in personal care, home and agrochemical products.
Properties of Nonionic surfactants:
- Decrease surface/ interfacial tensions
- High stability, less sensitive to electrolytes
- Less sensitive to hard water, e.g., water containing Mg2+, Ca2+
- Less sensitive to acidity or alkalinity
- Nonionic surfactantis compatible with other types of surfactants
- Soluble in water or organic solvents
- Most surfactants are in liquid or thick liquid form, ease of use
Common types of nonionic surfactants:
- Ethoxylated fatty acids
- Alkoxylated fatty acids
- Ethoxylated amines
- Ethoxylated alcohol
- Alkyl ethoxylates
- Nonyl-phenol ethoxylates
- Ethoxylated sorbitan esters
- Castor oil ethoxylates
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