20Khz Ultrasonic Coating Efficient Suspension Dispersion

Hangzhou Shengtu Technology Co., Ltd. is one of the leading manufacturers and suppliers of 20khz ultrasonic coating efficient suspension dispersion in China. Welcome to buy high quality customized products at low price from our factory. Contact us for more details.

 

 

 

20 kHz ultrasonic high-efficiency dispersion for suspension coatings breaks down pigments and fillers down to the nanoscale to form a stable suspension system.

 

This 20 kHz ultrasonic dispersion technology improves the tinting strength and protective performance of coatings, optimises the gloss and smoothness of the cured coating film, extends the shelf stability of the coating, and inhibits pigment agglomeration and sedimentation.

 

 

 

Ultrasonic frequency and power are critical for achieving optimal dispersion results in coatings.

1. Ultrasonic frequency

 

Frequencies ranging from 20 to 100 kHz are commonly used to disperse pigment and filler particles within coating formulations.

Higher frequencies (40–80 kHz) work well for fine particles and deliver more effective breakdown and deagglomeration of clusters.

Lower frequencies (20–40 kHz) are better suited for processing larger particles.

 

2. Ultrasonic power

Dispersion performance generally improves as power increases, yet excessive power may cause localized overheating and cavitation-induced vaporization.

A power density of 300–1000 W/L is the typical recommended range.

Power settings can be fine-tuned according to the properties of raw materials and the difficulty level of dispersion.

 

3. Additional optimization parameters

Processing time: Good dispersion is normally achieved within 10–30 minutes. Extended processing may lead to localized overheating.

Temperature control: Maintain the process temperature between 30–50 °C to prevent unwanted changes to coating properties from excessive heat.

Dispersant addition: Proper dosage of dispersants further improves long-term dispersion stability.

 

In short, you can fine-tune ultrasonic frequency, power, processing time and other variables to optimize dispersion performance for different coating systems.

 

 

 

 

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