With the country's attention to environmental protection, the application of desiccant will bring both economic and social benefits, and it will be more widely used, and the development prospect of desiccant is very broad. China's desiccant sub-industry is also very mature. Among all desiccant types, silica gel is an environmentally friendly and safe desiccant. Li Ying Da silica gel desiccant is insoluble in water and all organic solvents, non-toxic, tasteless and stable in physical properties. The desiccant does not react with all chemicals except strong acid and hydrochloric acid. In addition, silica gel is the only desiccant that can directly contact drugs and food according to the British FDA certification.

According to reports, all desiccants will reach an adsorption balance with the external environment at a certain temperature. If the temperature changes, the desiccants will further release or absorb water, thus achieving a new adsorption balance. Usually, when the temperature increases, the desiccants will release water, and when the temperature decreases, the desiccants will absorb water. In insulating glass, when the temperature changes, the desiccant of insulating glass will also release and absorb water accordingly. For the desiccant with weak deep drying ability, the adsorption balance changes greatly with the temperature. For the desiccant with strong deep drying ability,