Microencapsulation
Formation of colloidal components starting from a liquid-liquid phase separation
Microencapsulation by coacervation consists of the formation of oil-containing droplets..
This process occurs when a homogeneous solution containing charged molecules undergoes a liquid-liquid phase separation, which results in most cases from the association of molecules of opposite charge; the shell of the droplets forms thanks to a cross-linker.
1. Dissolving polymer, 2. Formation of immiscible phases, 3. Depositing of liquid coating on core material 4. Solidification of the coating
The advantages:
Characteristics