Study on the relationships between the oil HLB value and emulsion stabilization.

Area of Science:

• Colloid and Surface Science
• Materials Science

Background:

• Emulsion stability is crucial in various industrial applications.
• Understanding the role of the hydrophilic-lipophilic balance (HLB) value is key to controlling emulsion properties.

Purpose of the Study:

• To investigate the relationship between oil HLB value and emulsion stabilization.
• To determine the optimal emulsification system for enhanced stability.

Main Methods:

• Determined optimal emulsifier ratios (Tween 80: Span 80).
• Measured emulsion properties including particle size, stability, interfacial tension, and zeta potential.
• Utilized laser particle analyzer, stability analyzer, and interfacial tensiometer.

Main Results:

• The optimal ratio of Tween 80 to Span 80 was found to be 5:5.
• Emulsion stability was maximized when the HLB value of the emulsification system closely matched the HLB value of the oil.
• Closer HLB values led to more compact surfactant arrangement at the oil-water interface, resulting in smaller emulsion droplets.

Conclusions:

• Matching HLB values of the emulsifier system and oil is critical for achieving optimal emulsion stability.
• Smaller emulsion droplet size, a consequence of matched HLB values, significantly contributes to enhanced emulsion stability.
• This research offers valuable insights for effectively adjusting and improving emulsion stability through HLB value optimization.