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Ultrasonic Homogenizer Uses Ultrasonic Waves To Stir in The Material To Achieve Homogenization Of The Material

Oct 12, 2023

Ultrasonic homogenizer is achieved by utilizing the principle of alternating compression and expansion between sound waves and ultrasonic waves when encountering objects. Under the action of ultrasound, during the half cycle of expansion, the material liquid undergoes tensile force and expands as bubbles; During the half cycle of compression, the bubbles contract. When the pressure changes significantly and is lower than the low pressure, the compressed bubbles will collapse sharply, leading to the phenomenon of "cavities" in the material liquid. This phenomenon disappears with the change of pressure and the imbalance of external pressure. At the moment when the "cavities" disappear, the surrounding liquid causes a significant increase in pressure and temperature, playing a very complex and powerful mechanical stirring role, To achieve homogenization. At the same time, on the interface with density differences caused by "holes", ultrasonic waves will also reflect and generate intense stirring. According to this principle, an ultrasonic homogenizer is achieved by placing an ultrasonic generator with a frequency of 20-25kHz into the material liquid or using a device that enables the material liquid to have high-speed flow characteristics, and utilizing the stirring effect of ultrasound in the material liquid to achieve homogenization.
Ultrasonic homogenizers are divided into mechanical, magnetic controlled oscillation, and piezoelectric crystal oscillation types in the form of ultrasonic generators.
The main applications of ultrasonic homogenizers are:
1. Extraction of traditional Chinese medicine, fragmentation of cells, bacteria, and viral tissues. For example, the extraction of cell contents.
2. The dispersion and homogenization of material particles, as well as the emulsification of products. For example, the dispersion of nanomaterials.
3. Accelerate dissolution, accelerate chemical reactions. For example, used in chemical synthesis.