The silica gel desiccant will become turbid after it absorbs moisture, indicating that it has absorbed moisture. How do we regenerate the silica gel desiccant for reuse? You can open the silica gel desiccant package, pour the desiccant into the ready-made container, put it in a microwave oven and heat the temperature between 120°C and 180°C for about 15 minutes, until the silica gel becomes transparent, dry the desiccant well Put the desiccant in a dry and sealed container to cool, and then pack the silica gel desiccant in a cloth bag after cooling, and then it can be used again. The same method of exposure and air drying is also possible, but the effect is not so good.
During the drying process of the silica gel desiccant, the temperature should be gradually increased to avoid the violent drying of the silica gel. If the temperature is too high when the silica gel desiccant is heated, the structure of the silica gel will change and the moisture absorption effect of the silica gel desiccant will be reduced. Sieve out the fine particles to make the particles uniform, and then pack them and use them again.
Silica gel desiccant is cheap and only a few cents per packet. The cost of regeneration by the above-mentioned method is higher, and after regeneration, the moisture absorption effect of silica gel desiccant is significantly reduced, and it will eventually become no moisture absorption effect, so it is generally not recommended to use it. This method regenerates.