Ultrasonic Dispersion Ultrasonic Size Reduction For Sale

Ultrasonic Dispersion and Deagglomeration;                                                                                                                                                                                                                                                                           SONOMECHANIC  ultrasonic  homogenizers can be easily integrated for process or laboratory use. Dispersion of solids in liquid is one of the important applications of ultrasonic devices. Ultrasonic cavitation produces high forces that break down agglomerates. Mixing powders into liquids is a common method used in formulations such as paint, ink, shampoo, and beverages. Individual particles have an attractive force holding them together under various physical and chemical laws, including the “Van der Waals” law and liquid surface tension. This force is stronger in high-viscosity liquids like polymers or resins. This attractive force must be overcome to disperse particles in the liquid medium. Ultrasonic Dispersion applies mechanical stress inside liquids to break particle agglomerates. Different technologies have been used to dissolve powders in liquids, including high-pressure homogenizers, mixers, jet mills, and rotor-stator mixers. High-intensity ultrasonic processing emerges as an interesting alternative to these technologies.                                                                                                                                                When liquids are sonicated, sound waves propagate through the liquid medium creating high-pressure (compression) and low-pressure (rarefaction) cycles. This generates mechanical stress on electrostatic forces (Van der Waals force). Ultrasonic cavitation in liquids causes liquid jets at speeds of 1000 km/h (approx. 600 mph). These jets separate particles at high pressure. Smaller particles accelerate with liquid jets and collide at high speeds. This makes the ultrasonic method effective not only for dispersion and separation but also as a tool for grinding and reducing particles to micron and submicron sizes.                                                                                                 Durable and Easy Cleaning; Ultrasonic energy is transmitted into the liquid via the sonotrode. This is typically a machined titanium rotating symmetrical part. It is also the only moving/vibrating wetted part. It is the only part subject to wear and can be easily replaced within minutes. Oscillation-separation flanges allow mounting the sonotrode to open or closed pressurized vessels or flow cells in any orientation. No bearings are required. All other wetted parts are usually made of stainless steel. Flow cell reactors have simple geometries and can be easily disassembled and wiped. They have no small holes or hidden corners..-Nano Materials – Background information Nanomaterials are materials smaller than 100 nm. They are rapidly advancing into formulations of paints, inks, and coatings. Nanomaterials are divided into three broad categories: metal oxides, nanoclays, and carbon nanotubes. Metal oxide nanoparticles include nanoscale zinc oxide, titanium oxide, iron oxide, cerium oxide, and zirconium oxide, as well as mixed metal compounds such as indium-tin oxide and zirconium and titanium -tin oxide. This small scale affects many disciplines such as physics, chemistry, and biology. Paint and coating nano decorative needs (e.g., color and brightness), functional purposes (e.g., conductivity, antimicrobial), and protection of paints and coatings (e.g., scratch resistance, UV stability). TiO2 and ZnO or aluminum, cerium, especially nano-sized metal oxides, including silica and nano-sized pigments, find applications in new paint and coating formulations. When particle size decreases, chemical reactivity and interaction properties with other substances such as resin matrices change. Changes in properties lead to changes in electronic properties. Particle size reduction increases the material's surface area. Therefore, a higher percentage of atoms can interact with other substances, such as resin matrices. Surface activity is an important aspect of nanomaterials. Agglomeration and aggregation prevent surface area from contacting other substances. Only well-dispersed or single-dispersed particles allow the full potential of the material to be utilized. As a result, good dispersion reduces the amount of nanomaterials needed to achieve the same effect. Since most nanomaterials are still quite expensive, this aspect is very important for commercializing product formulations containing nanomaterials. Today, many nanomaterials are produced in dry processes. As a result, particles must be mixed into liquid formulations. Most nanoparticles form agglomerates during wetting. Especially carbon nanotubes are difficult to disperse in liquids such as water, ethanol, oils, polymers, or epoxy resins due to their very sticky nature. Conventional processing devices such as high-shear or rotor-stator mixers, high-pressure homogenizers, and colloid mills and grinders are insufficient to separate nanoparticles into individual particles. For problems smaller than a few microns and nanometers, ultrasonic cavitation is very effective at breaking down agglomerates, aggregates, and even primary particles. When used for milling, ultrasonic cavitation produces liquid jets with flow velocities up to 1000 km/h that cause particles to collide with each other. This breaks Van der Waals forces in agglomerates and even primary particles.