⒈ When drying and regenerating, attention should be paid to gradually increase the temperature, so as not to cause the colloidal particles to burst due to severe drying and reduce the recovery rate.

⒉ When calcining and regenerating silicone rubber, too high temperature will cause changes in the pore structure of silicone rubber, which will obviously reduce its adsorption effect and affect the use value. For blue gel indicator or color-changing silicone rubber, the temperature of desorption and regeneration should not exceed 120 °C, otherwise the color developing effect will be lost due to the gradual oxidation of the color developer.

3. The regenerated silicone rubber should generally be sieved to remove fine particles to make the particles uniform.

Storage and packaging Silica gel has strong hygroscopic ability, so it should be stored in a dry place, and there should be a shelf between the packaging and the ground. Packaging materials include steel drums, paper drums, cartons, plastic bottles, polyethylene plastic composite bags, flexible container bags, etc. During transportation, avoid rain, moisture and sun exposure. The basic structural unit of organic silicone rubber products is composed of silicon-oxygen chains, and the side chains are connected with various other organic groups through silicon atoms. Therefore, the structure of silicone products contains both "organic groups" and "inorganic structures". This special composition and molecular structure make it integrate the characteristics of organic matter and the function of inorganic matter. Compared with other polymer materials, the most outstanding properties of silicone products are:

1. Silicone products are based on silicon-oxygen (Si-O) bond as the main chain structure, the bond energy of C-C bond is 82.6 kcal/mol, and the bond energy of Si-O bond in silicone is 82.6 kcal/mol. 121 kcal/mol, so the thermal stability of silicone products is high, and the chemical bonds of the molecules are not broken or decomposed under high temperature (or radiation exposure). Silicone is not only resistant to high temperatures, but also low temperatures, and can be used in a wide temperature range. Whether it is chemical properties or physical and mechanical properties, the change with temperature is very small.

2. The main chain of weather-resistant silicone products is -Si-O-, and there is no double bond, so it is not easy to be decomposed by ultraviolet light and ozone. Silicone has better thermal stability, radiation resistance and weather resistance than other polymer materials. The service life of silicone in natural environment can reach several decades.

3. Electrical insulation properties Silicone products have good electrical insulation properties, and their dielectric loss, withstand voltage, arc resistance, corona resistance, volume resistivity and surface resistivity are among the best in insulating materials, and their electrical properties are affected by Temperature and frequency have little effect. Therefore, they are a stable electrical insulating material and are widely used in the electronics and electrical industries. In addition to excellent heat resistance, silicone also has excellent water repellency, which is the guarantee of high reliability of electrical equipment in wet conditions.

4. Physiologically inert silicone compounds are among the most inactive compounds known. They are very resistant to biological aging, have no rejection reaction with animals, and have good anticoagulant properties.

5. The main chain of low surface tension and low surface energy silicone is very flexible, and its intermolecular force is much weaker than that of hydrocarbons. Therefore, it has lower viscosity, weaker surface tension and smaller surface energy than hydrocarbons of the same molecular weight. , the film-forming ability is strong. This low surface tension and low surface energy are the main reasons for its many applications: hydrophobicity, defoaming, foam stabilization, anti-sticking, lubrication, glazing and other excellent properties.