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1. Surfactant
Alfa Chemistry

2. Overview1
Classification Of Surfactant2
Applications3
Contact us4
Contents

3. Overview
Surface tension
Two liquids
A gas and a liquid,
A liquid and a solid

4. 2 Overview
A surfactant contains both a component and a water-
soluble component
Surfactants will diffuse in water and adsorb at
interfaces between air and water or at the interface
between oil and water, in the case where water is
mixed with oil. The water-insoluble hydrophobic
group may extend out of the bulk water phase, into the
air or into the oil phase, while the water-soluble head
group remains in the water phase. 。
Amphiphilic
Activity
Hydrophobic groups Hydrophilic groups

5. 2 Overview
The hydrophobic tails of the surfactant ions remain
inside the oil because they interact more strongly with
oil than with water.
The hydrophilic heads of the surfactant molecules
coating the micelle interact more strongly with water,
so they form a hydrophilic outer layer that forms a
barrier between micelles.
Hydrophobic tails
Hydrophilic Head

6. Classification
Of Surfactant
1
2
3
4
Nonionic Surfactant
Anionic Surfactant
Cationic Surfactant
Amphoteric Surfactant

7. 1 Nonionic Surfactant
Water-solubility
The water-solubility of the oxygen
groups is the result of hydrogen
bonding.
Hydrogen bonding
Hydrogen bonding decreases with
increasing temperature, and the
water solubility of nonionic
surfactants therefore decreases
with increasing temperature.

8. 2 Anionic Surfactant
Sulfate Sulfonate Phosphate
Ammonium
lauryl
sulfate
Sodium
lauryl
sulfate
Sodium
laureth
sulfate
Carboxylate
Sodium
myreth
sulfate

9. 3 Cationic Surfactant
01 02 03Amine salt type Quaternary ammonium
salt type
Heterocyclic type

10. 4 Amphoteric Surfactant
Cationic part
Primary, secondary, or tertiary
amines or quaternary
ammonium cations
Anionic part
Be more variable
 Phospholipids phosphatidylserine
 Phosphatidylethanolamine
 Sphingomyelins

11. Applications
1
2
3
4
Solubilization
Wetting agents
Foaming and defoaming
Sterilization

12. 1 Solubilization
Electrolyte
Inorganic
additives
Organic
additives
Temperature
Structural
characteristics

13. 2 Wetting agents
The purpose of adding surfactants is to increase the adhesion and
deposition of the drug, and to increase the activity of active
ingredient in the presence of moisture.

14. 3 Foaming and defoaming
Oil-soluble
celluloses
Steroid
hormones
Insoluble
drugs
Indispensable
emulsifiers
Suspending
agents
Foaming
agents

15. 4 Sterilization
Preoperative skin
disinfection
Mucosal disinfection Device disinfection Environmental
disinfection

16. Alfa Chemistry
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Price
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to
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17. CONTACT US
Email
info@alfa-chemistry.com
Telephone
1-201-478-8534
1-516-662-5404
Fax
1-516-927-0118
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