Reason:
First, silica gel itself is a good insulator, with a very high resistance and non-conductivity. The volume resistivity of the precipitated gel reaches 1 * 1014 Ω * cm. The volume resistivity of the gas phase gel is 10-100 times higher than that of the precipitated gel, reaching 1 * 1015-16 Ω * cm due to the higher purity, less impurities and finer particle size of the raw gas phase silica. Therefore, silica gel can be used to produce some electrical insulation products, such as silica gel wires, silica gel insulators, lightning arresters, and cable accessories, which has made great contributions to the protection of everyone's life and property. However, everything has its advantages and disadvantages. Because of the high resistance, it is difficult to transmit the static electricity generated by the silicone product due to friction and other reasons. All of them are gathered on the surface of the silicone, resulting in a series of problems.
Second, in the high humidity environment, a layer of "water film" is formed on the surface of the silica gel product, which reduces the resistivity and makes the static electricity dissipate rapidly along the surface and the air. In autumn and winter, due to the dry weather, the moisture is greatly reduced, and the air conductivity is greatly reduced. The static electricity can only be dissipated internally. The dissipation speed of the electric charge is very slow, and the static electricity lasts for a long time.
Third, in autumn and winter, people wear thick clothes. A large number of chemical fiber clothes generate static electricity when rubbing. Static electricity may also be transferred from the surface of the human body to the surface of silica gel, or from the surface of silica gel to the surface of the human body, which cannot be dissipated quickly.
Since the electrostatic problem of silicone products is so serious, how to effectively solve it?
One way is to put several high-power humidifiers in the production and use sites of silica gel products to improve the air humidity, so that the static electricity can be quickly transferred out by the moisture in the air.
Another way is to use anti-static silicone rubber to reduce the resistance of the silicone rubber, improve the conductivity of the silicone rubber and dissipate the static electricity as soon as possible.
Antistatic silicone rubber is a special branch of silicone rubber, which can be roughly divided into commodity grade and electronic grade. The anti-static silicone rubber of daily use grade has no accurate resistivity index, but requires small static electricity, no dust absorption, and the surface of the silicone product can be kept clean. Electronic-grade anti-static silicone rubber, which is used in the processing and manufacturing of expensive and precise electronic products, or directly used in precision electronic products, such as mobile phones, tablets, etc., generally requires a resistivity of 106-109, which cannot be too large. A power greater than 9 can easily generate static electricity, absorb dust and impurities, and cannot be too small. A power less than 6 can become a similar conductive product, It is easy to cause damage to components of precision electronic products.
For silicone rubber, please check the details:
https://www.siliconerubbers.net/product-ultra-low-harness-htv-silicone-rubber.html 
