The hygroscopic effect of silica gel powder is usually very good, because silica gel itself has a high specific surface area and a large number of tiny pores, which can effectively absorb moisture in the air. The hygroscopic effect of silica gel powder is mainly reflected in the following aspects:
High hygroscopicity: silica gel powder can absorb moisture in the air, and its hygroscopic capacity increases with the increase of environmental humidity. In a humid environment, silica gel powder can quickly absorb moisture and keep dry.
Renewability: After silica gel powder absorbs moisture, it can usually release the absorbed moisture by heating or exposing it to a dry environment, which makes silica gel powder have the characteristics of regeneration and can be used repeatedly.
Stability: Silica gel powder has stable performance during multiple moisture absorption and dehumidification processes, and will not lose its effect due to excessive moisture absorption like some other hygroscopic materials.
Moisture absorption rate: Because silica gel powder has small particles and a relatively large surface area, it absorbs moisture quickly and can absorb moisture in the environment in a short time.
In general, silica gel powder has excellent hygroscopic effect and is a common and effective desiccant material, which is widely used in various moisture-proof and moisture-proof fields.
