How to solve the phenomenon of poor dispersion and rapid precipitation of powder in the paint industry?

In the coating industry, poor powder dispersion and rapid sedimentation are common challenges that can affect the quality of coatings and processing efficiency. To tackle these issues, we can focus on two aspects: equipment adjustments and powder management.
 

1. Equipment Adjustments

1.1 Adjusting Processing Parameters for Improved Physical Dispersion

By adjusting parameters of mixing equipment such as mixing speed, mixing time, and the shape of the agitator, we can enhance the physical dispersion of powders, thereby improving their mixing performance. This can effectively reduce the problem of poor powder dispersion.
 

2. Powder Management

2.1. Controlling the Impact of Moisture

It's crucial to strictly control the moisture content during the transportation and storage of powders. High humidity can lead to powder agglomeration and rapid sedimentation, affecting the processing and performance of coatings. Therefore, maintaining the powder in a dry state during transportation and storage is essential.
 

2.2. Selection of Powder Specifications

Choosing powders with the appropriate particle size is essential for addressing the issue of rapid sedimentation. Powder that is too fine tends to aggregate and form sediment in the liquid, while powder that is too coarse may affect the texture and appearance of the coating. Hence, selecting the right powder specifications based on specific application requirements and processing characteristics is important.
 

2.3. Adopting Powder Surface Treatment to Enhance Compatibility

Surface treatment of powders, such as coating or modification, can increase their compatibility with liquids, thereby reducing the problem of rapid sedimentation. This treatment promotes uniform dispersion of powders in the liquid, improving the quality and stability of coatings.

In summary, by adjusting equipment parameters and optimizing powder management, we can effectively address the issues of poor powder dispersion and rapid sedimentation in the coating industry, thus improving product quality and production efficiency.