Utrasonic Thema: "Emulsioun"

Eng Emulsioun ass eng Mëschung aus zwee onmëschbare Flëssegkeeten, wéi Ueleg a Waasser, wou eng Flëssegkeet als kleng Drëpsen an deem aneren verspreet ass. Emulsiounen sinn heefeg a ville Produkter a Prozesser, dorënner Liewensmëttel, Kosmetik, Medikamenter a chemesch Fabrikatioun. Fir eng stabil Emulsioun ze bilden, ass et néideg eng vun de Flëssegkeeten a ganz feine Drëpsen ze briechen an se gläichméisseg duerch déi aner ze verdeelen, wat dacks d'Benotzung vun Surfaktanten oder mechanescher Energie erfuerdert.

Ultrasonication promotes emulsification by using high-intensity, low-frequency ultrasound waves to generate intense shear forces within the liquid mixture. These sound waves create cavitation — a phenomenon characterized by minuscule bubbles that form and collapse rapidly — resulting in powerful micro-mixing that breaks down the droplets of the dispersed phase into much smaller sizes. This process leads to the formation of a fine, uniform emulsion with droplets typically in the submicron or nanometer range. Ultrasonication is highly effective in creating stable nano-emulsions without the need for excessive surfactants or energy, making it the preferred method in both laboratory and industrial applications where precision and efficiency are critical.
Liest méi iwwer Ultraschall-Emulgéierung!