Cationic Surfactant
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Category：Flavors & Fragrances Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Definition & Structure
Cationic Surfactants are surface-active agents characterized by:
- Hydrophilic Head: Positively charged (e.g., quaternary ammonium, pyridinium)
- Hydrophobic Tail: Alkyl (C8–C22) or aromatic chains
Key Feature:
- Cationic charge → Strong affinity for negatively charged surfaces (e.g., hair, fabrics, bacteria)
Classification & Common Types
| Class | Structure | Example Compounds |
|---|---|---|
| Quaternary Ammonium (Quats) | R₄N⁺X⁻ (X = Cl⁻, Br⁻) | Cetrimonium chloride (CTAC) |
| Esterquats | R-COO-CH₂-CH₂-N⁺(CH₃)₃ X⁻ | Esterquat 1 (biodegradable variant) |
| Pyridinium Salts | R-N⁺-C₅H₅ X⁻ | Cetylpyridinium chloride (CPC) |
| Imidazolium Salts | R-N⁺-C₃H₃N₂ X⁻ | Didecyldimethylammonium chloride (DDAC) |
Key Properties
| Property | Advantage | Test Method |
|---|---|---|
| Antimicrobial | Effective against bacteria/viruses | ISO 20743 (antibacterial efficacy) |
| Fabric Softening | Reduces static cling in textiles | AATCC 124 (softness evaluation) |
| Surface Modification | Binds to negatively charged substrates | Zeta potential measurement |
| Emulsification | Stabilizes oil-in-water systems | HLB system (Griffin method) |
Applications
| Industry | Function | Example Use |
|---|---|---|
| Personal Care | Hair conditioners, antiseptic soaps | Behentrimonium chloride in shampoos |
| Textiles | Fabric softeners, antistatic agents | Distearyldimonium chloride |
| Healthcare | Disinfectants, surgical scrubs | Benzalkonium chloride (BAC) |
| Agriculture | Adjuvants for herbicides | Quaternary ammonium compounds |
Disclaimer:
The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.
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