Ultrasonic Production of Nano-Size Dispersions and Emulsions

By T. Hielscher. 2005

168 citations recorded by the source corpus.

Ultrasound is a well-established method for particle size reduction in dispersions and emulsions. Ultrasonic processors are used in the generation of nano-size material slurries, dispersions and emulsions because of the potential in the deagglomeration and the reduction of primaries. These are the mechanical effects of ultrasonic cavitation. Ultrasound can also be used to influence chemical reactions by the cavitation energy. This is sonochemistry. As the market for nano-size materials grows, the demand for ultrasonic processes at production level increases. At this stage, energy efficiency becomes important. Since the energy required per weight or volume of processed material links directly to the equipment size required, optimization of the process efficiency is essential to reduce investment and operational costs. Furthermore it is required to scale the lab and bench top configurations to this final level without any variations in the process achievements. Scale up by power alone will not do this.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/5a4595deea9875435a6a34bb095656bf1b737302

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Citations in the corpus

• Carbon nanotube (CNT) incorporated cementitious composites for functional construction materials: The state of the art (2019, background): “The converted mechanical vibrations are then transferred into the fluid from the probe creating pressure waves, which increases the temperature of the fluid by cavitation [84].”
• Preparation of Nanoparticle Dispersions from Powdered Material Using Ultrasonic Disruption (2012, background): “The following table offers a general guideline of starting points for power, time and volume selection (12).”
• An Overview of Ultrasound-Assisted Food-Grade Nanoemulsions (2013, unknown): “These waves induce a motion in the medium particles through a series of compressions and rarefactions under fluctuating pressure, thus leading to acoustic cavitation phenomena [43, 81].”