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The dispersing and deagglomeration of solids into liquids is an important application of ultrasonic devices.If powders are wetted, the individual particles build agglomerates and are held together by attraction forces of various physical and chemical natures, including van der Waals forces and liquid surface tension.
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The dispersing and deagglomeration of solids into liquids is an important application of ultrasonic devices.If powders are wetted, the individual particles build agglomerates and are held together by attraction forces of various physical and chemical natures, including van der Waals forces and liquid surface tension.This effect is stronger for higher-viscosity liquids, such as polymers or resins.The attraction forces must be overcome in order to deagglomerate and disperse the particles into liquid media.
This includes high-pressure homogenisers, agitator bead mills, impinging jet mills and rotor-stator-mixers.
High-intensity ultrasonication is an interesting alternative to these technologies and particularly for the particle treatment in the nano-size range the only effectual method to achieve the required results.
By high-power/low-frequency ultrasound, high amplitudes can be generated.
Thereby, high-power/low-frequency ultrasound can be used for the processing of liquids such as mixing, emulsifying, dispersing and deagglomeration, or milling.
When sonicating liquids at high intensities, the sound waves that propagate into the liquid media result in alternating high-pressure (compression) and low-pressure (rarefaction) cycles, with rates depending on the frequency.
During the low-pressure cycle, high-intensity ultrasonic waves create small vacuum bubbles or voids in the liquid.
When the bubbles attain a volume at which they can no longer absorb energy, they collapse violently during a high-pressure cycle.
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Sono-20-1000 |
Sono-20-2000 |
Sono-20-3000 |
Sono-15-3000 |
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20±0.5 KHz |
20±0.5 KHz |
20±0.5 KHz |
15±0.5 KHz |
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1000W |
2000W |
3000W |
3000W |
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110/220V |
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300 degree |
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35 MPa |
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20 W/cm² |
40 W/cm² |
60 W/cm² |
60 W/cm² |
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10 L/Min |
15 L/Min |
20 L/Min |
20 L/Min |
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RPS-SONIC ultrasonic systems can be run at fairly high solids concentrations.
For example, for silica the breakage rate was found to be independent of the solid concentration up to 50 per cent by weight.Ultrasound can be applied for the dispersing of high-concentration master-batches, processing low and high viscosity liquids.
Dispersing and wet milling by ultrasonic cavitation is a proven technique to achieve evenly distributed dispersions at nano range as well as particle size reduction down to micron- and nano-size.Full control over the parameters of amplitude, pressure, temperature, viscosity and concentration allows us to find the right process adjustment regarding particle characteristics and aimed size.
With ultrasonic industrial processors in the power range between 500W up to 16kW per device it becomes possible to develop specific process setups to fulfil specific requirements.With the wide device range, all steps of development - from first testing to process optimisation and final production - are covered.
A: Now we have more than 100 products. We have a strong advantage of OEM, we can supply technical service , design service and customize service.
A: Usually we quote within 8 hours after we get your inquiry.kindly send email to admin@rps-sonic.com if you wanna get price from us.
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