High Frequency Ultrasonic Treatment Technology For Suspension And Dispersion Of Pigment Solid Particles

Hangzhou Shengtu Technology Co., Ltd. is one of the leading manufacturers and suppliers of high frequency ultrasonic treatment technology for suspension and dispersion of pigment solid particles in China. Welcome to buy high quality customized products at low price from our factory. Contact us for more details.

 

 

 

Ultrasonic high-frequency processing is an effective method to suspend and disperse solid pigment particles, improving pigment dispersion and uniformity within liquid media. Widely adopted across the coatings and ink industries, this technology delivers notable performance benefits.

 

This ultrasonic high-frequency treatment effectively lessens pigment particle agglomeration and boosts dispersibility, maintaining consistent distribution in coatings or inks. Well-dispersed pigments help improve coating gloss, hiding power, and color consistency.

 

 

 

Pigment dispersion performance depends not only on ultrasonic frequency and particle size, but also on the interplay of many parameters. Key influencing factors are listed below:

 

1. Liquid medium

• Properties: Solvent viscosity, density and surface tension directly impact pigment dispersion. Low-viscosity solvents typically support better dispersion results.
• Compatibility: Matching between pigments and the liquid carrier is critical. Different media will alter the long-term dispersion stability of pigments.

 

2. Ultrasonic parameters

• Power intensity: Higher power delivers more intense cavitation to speed up dispersion. That said, excessive power may trigger overheating and degrade temperature-sensitive materials.
• Treatment duration: Optimal sonication time matters greatly. Insufficient time leads to uneven dispersion, while overly long treatment risks material breakdown.

 

3. Particle morphology and inherent properties

• Particle shape: Pigment particles may be spherical, flaky or fibrous. Their shape influences flow behaviour and dispersibility.
• Surface characteristics: Surface energy, surface modification coatings, and hydrophilic or hydrophobic traits all affect dispersion outcomes.

 

4. Additives

• Dispersants: Suitable dispersants weaken inter-particle attraction between pigment solids to facilitate separation and uniform dispersion.
• Stabilizers: Stabilizers suppress pigment sedimentation after dispersion and maintain suspension stability.

 

5. Temperature

Rising temperature usually lowers liquid viscosity and aids dispersion. However, extreme heat can cause degradation of some raw materials.

 

6. Pre-mixing procedure

Mechanical stirring prior to sonication achieves preliminary deagglomeration of pigments, helping ultrasonic treatment perform more effectively.

 

7. Ultrasonic operation mode

Ultrasound can run in continuous or pulse mode, each delivering distinct dispersion results. Pulse operation mitigates heat buildup and yields more uniform dispersion.

 

       

 

 

 

 

 

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