Utrasonic topic: "Ultrasonic Deagglomeration"
Deagglomeration describes the process of breaking up or dispersing particles which have agglomerated, aggregated, or formed clusters. Interparticle forces can be classified into two groups: Adhesive forces such as van der Waals, electrostatic and magnetic attraction, mechanical interlocking and chemical bonds require no material bridge between the particles. Solid bridges, capillary bonding forces and immobile
liquid bridges are based on the formation of solid connections between particles.
Ultrasonic deagglomeration and dispersing is a powerful method to break particle agglomerates and aggregates into individual particles and results in uniformly dispersed suspensions. An important application field of ultrasonic dispersers is the dispersion of nanoparticles such as carbon nanotubes, silica, alumina, titanium dioxide or magnetite.
Acoustic cavitation, the working principle behind ultrasonic deagglomeration and milling, creates intense hydraulic shear forces, which overcome the interparticle bondings and promote deagglomeration of agglomerated particles to mono-dispersed nanoparticles.
Read more about ultrasonic dispersing, deagglomeration and wet-milling of nano-particles!
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High-performance adhesives are composed from epoxy, silicone, polyurethane, polysulfide, or acrylic systems containing various (nano-)fillers and additives, which give the adhesive special performance such as bond strength, light weight, durability, heat-resistance, and sustainability. Efficient and reliable mixing is required to…https://www.hielscher.com/high-performance-adhesive-formulations-improved-by-ultrasonic-dispersion.htm
High power ultrasonication can efficient and reliably break-up particle agglomerates and even disintegrate primary particles. Due to its high-performance dispersion performance, probe-type ultrasonicators are used as preferred method to create homogeneous nanoparticle suspensions. Reliable Nanoparticle Dispersion by Ultrasonication Many industries…https://www.hielscher.com/reliable-nanoparticle-dispersion-for-industrial-applications.htm
Silica nanoparticles such as fumed silica (e.g. Aerosil) are a widely used additive in various industries. In order to obtain fully functional nanosilica with the desired material characteristics, the silica nano-particles must be deagglomerated and distributed as single-dispersed particles. Ultrasonic…https://www.hielscher.com/ultrasonic-deagglomeration-of-silica-nanoparticles.htm
Zeolites including nano-zeolites and zeolite derivatives can be efficiently and reliable synthesized, functionalized and deagglomerated using high-performance ultrasonication. Ultrasonic zeolite synthesis and treatment excels conventional hydrothermal synthesis by efficiency, simplicity, and simple linear scalability to large production. Ultrasonically synthesized zeolites…https://www.hielscher.com/synthesis-and-functionalization-of-zeolites-using-sonication.htm
Ultrasonic mixers are a reliable tool to homogenize, disperse, and emulsify liquid paint formulations. Ultrasonic homogenizers not only produce highly stable, uniform paint emulsions and dispersions, but ultrasonicators are also used to mill and grind pigments, nanomaterials and primary particles.…https://www.hielscher.com/high-performance-paint-homogenizers.htm
Ultrasonically assisted dyeing of fibers and fabrics improves the penetration of the dye into the fiber pores and increases colour strength and colour fastness significantly. Ultrasonic dyeing is a rapid process, which can be run under mild conditions and low…https://www.hielscher.com/improved-textile-fiber-dyeing-with-ultrasonics.htm
Graphene oxide is water-soluble, amphiphilic, non-toxic, biodegradable and can be easily dispersed into stable colloids. Ultrasonic exfoliation and dispersion is an very efficient, rapid and cost-effective method to synthesize, disperse and functionalize graphene oxide on industrial scale. In downstream processing,…https://www.hielscher.com/graphene-oxide-ultrasonic-exfoliation-and-dispersion.htm
Non-uniform particle size and inhomogeneous particle size distribution causes severe damages to the polished surface during a CMP process. Ultrasonic dispersion is a superior technique to disperse and deagglomerate nano-sized polishing particles. The uniform dispersion achieved by sonication results in…https://www.hielscher.com/ultrasonic-dispersion-of-polishing-agents-cmp.htm
To incorporate graphene into composites, the graphene must be dispersed/exfoliated as single nano-sheets uniformly into the formulation. The higher the grade of deagglomeration, the better the extraordinary material properties are exploited. Ultrasonic dispersion enables for a superior particle distribution and…https://www.hielscher.com/ultrasonic-dispersion-of-graphene.htm
Mono- and bi-layer graphene nanosheets can be produced rapidly via ultrasonic exfoliation with high throughput and at low cost. Ultrasonically exfoliated graphene can be functionalized with biopolymers in order to obtain water-dispersible graphene. By ultrasonic cavitation, the synthesized graphene can…https://www.hielscher.com/ultrasonic-exfoliation-of-water-dispersible-graphene.htm
Ultrasonic mixing and dispersion activates and intensifies the catalytic reaction in fixed bed reactors. The sonication improves the mass transfer and increases thereby efficiency, conversion rate and yield. An additional benefit is the removal of passivating fouling layers from the…https://www.hielscher.com/ultrasonically-intensified-fixed-bed-reactors.htm
Composites show unique material properties such as significantly enhanced thermo-stability, elastic modulus, tensile strength, fracture strength and are therefore widely used in the manufacturing of manifold products. Sonication is proven to produce high-quality nanocomposites with highly dispersed CNTs, graphene etc.…https://www.hielscher.com/ultrasonic-formulation-of-reinforced-composites.htm