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Published on: October 13, 2021
Research on the microcapsule production by high voltage pulsing method.
Er-Tong Chen1, Ting Wang, Mi Peng
1Inst. of Thermal Sci. in Medicine, Shanghai Univ. of Sci. & Technol.
Summary
High voltage pulsing shapes microcapsules, with voltage controlling diameter and frequency influencing homogeneity. Optimal pulse width ensures better microcapsule production.
Area of Science:
- Materials Science
- Chemical Engineering
Background:
- Microencapsulation is a key process for delivering active ingredients.
- Controlling microcapsule properties like size and homogeneity is crucial for performance.
Purpose of the Study:
- To investigate the influence of high voltage pulsing parameters on microcapsule production.
- To determine optimal parameters for controlling microcapsule diameter, shape, and homogeneity.
Main Methods:
- Utilized a high voltage pulsing microcapsule shaping device.
- Conducted experiments by systematically varying voltage, frequency, pulse width, and pushing velocity.
Main Results:
- Microcapsule diameter is primarily controlled by voltage, decreasing as voltage increases.
- Homogeneity is significantly improved with increased frequency.
- Pulse width affects both diameter and homogeneity; optimal range is 1/4 to 1/2 of the cycle.
Conclusions:
- High voltage pulsing is an effective method for microcapsule production.
- Precise control over voltage, frequency, and pulse width allows for tailored microcapsule characteristics.
