How to prevent the agglomeration of powder paint in summer

The powder coating has a tendency to agglomerate at a certain temperature, which is mainly caused by the resin, leveling agent and other materials in the powder coating being softened by heat, and it is also the physical property of the micronized substance.

Resin has a physical property.

Powder coating formulations The larger the amount of added material having a low glass transition temperature, the glass transition temperature of the system, the lower com" href="">coating line coatingol.

Entering the summer production stage, the rise in temperature will make it easier for powder coating products to agglomerate.

1) When selecting resins, select some resins with high glass transition temperature (Tg).

2) Reduce the use of low glass transition temperature polymers in powder coating formulation design or use good quality products, such as brighteners and matting agents, which can be used as little as possible to ensure that the glass transition temperature of the powder coating system will not decrease .

3) In terms of production, the crushed flakes from the extruded sheeting steel belt should be fully cooled before entering the grinding process.

4) When grinding powder, the feed speed should be appropriately reduced, the induced air volume should be increased, and the inlet air should be equipped with air-conditioning to control the temperature of the grinding powder.

5) Anti-caking additives, such as nano-silica or alumina C, can be added to prevent adhesion between powder particles.

6) Control the storage temperature and humidity in the workshop to avoid moisture absorption and moisture absorption of the powder.

7) Control the temperature and humidity of the workshop and the cooling water temperature of the extrusion tablet press to prevent condensation of water droplets, causing water in the tablet material.

8) Improve the air inlet of the mill and leave some gaps to prevent insufficient air inlet.

9) Agglomeration of powder when heated is a physical phenomenon caused by normal molecular thermal movement.

10) It also needs attention during transportation.

11) Remember not to stack them next to the drying tunnel.
The fluidized bucket of slight powder mass can be solved by airflow.
Soybean particles need to be sieved.
Large ones need to be returned to the factory for reprocessing and used after the experiment.