Introduction to Silica Gel Desiccant-II

1. Working principle

Adsorption desiccant: Silica desiccant is an adsorption desiccant with a large surface area and a high adsorption capacity. When exposed to humid air, it absorbs water molecules and converts into silica gel, making the surrounding environment dry.

Renewability: When the silica desiccant is full of water, it can be dried again by heating or vacuum treatment for continued use.

2. Preparation method (reference article 4)

Raw materials: including silica desiccant powder, polyvinyl alcohol and auxiliary materials (such as calcium stearate, magnesium stearate, etc.).

Steps: After the raw materials are fully mixed, they are heated and pressed into blocks in a mold, and then dried to obtain the finished product. The drying process usually adopts a vacuum drying method.

3. Summary

Silica desiccant has become an indispensable hygroscopic material in various fields due to its high hygroscopic capacity, chemical stability and safety. Whether it is industrial application or household use, it can effectively keep the environment dry and prevent items from getting damp and corrupting.