After regenerating color-changing silicone, natural cooling should be used. Letting it stand in the oven for 30-60 minutes will quickly and safely cool it, avoiding damage to the microporous structure or particle breakage due to sudden cooling.
1. Optimal Cooling Method: Natural Cooling in the Oven
Operating Procedure:
After baking, turn off the oven power;
Keep the oven door closed and let the silicone stand in a sealed environment for 30-60 minutes;
Once the temperature drops to room temperature, remove it within 5 minutes and seal it for storage.
Advantages: Uniform cooling, avoids temperature shocks, and protects the structural integrity of the silicone.
2. Why Can't Forced Rapid Cooling Be Used? Risk Description
Micropore Collapse: Sudden cooling can cause uneven shrinkage of the silica framework, leading to the rupture or collapse of some micropores.
Particle Cracking: Excessive temperature differences may cause surface cracks in the particles, reducing adsorption efficiency.
Performance Degradation: Structural damage directly affects moisture absorption capacity and the number of regeneration cycles.
Experience Tips: Forced airflow or cold water cooling may cause a 10-15% performance decrease after the first regeneration.
3. Key Post-Cooling Procedures: Immediately Seal to Prevent Moisture:** Even after cooling, silica gel readily absorbs moisture from the air.
It is recommended to use aluminum foil self-sealing bags or food storage containers with sealing strips to ensure moisture isolation. A small amount of fresh desiccant can be placed in the container to aid drying and extend the effective time.
Practical Tips: Label the "Regeneration Date" and "Number of Cycles" for easy tracking of lifespan.
