Silicone oil, also known as polysiloxane, is a high molecular polymer. Silicone oil began to be used in cosmetics in 1950 and developed rapidly in cosmetics after 1970. Cosmetics containing silicone oil have the following characteristics: good lubricity, a uniform waterproof protective film on the skin, no greasy and sticky feeling, and good gloss; good anti-ultraviolet radiation performance, and will not oxidize and deteriorate under the action of ultraviolet radiation, causing skin irritation. ; Good antistatic properties. E and dustproof effect, good air permeability, no impact on perspiration after film formation, good stability, chemical inertness and supporting properties.

Silicone oil is a polyorganosiloxane with different polymer chain structures. It is a kind of silicone product with many varieties and wide application range. Classification based on the different substituents in the polysiloxane chain. Silicone oil can be divided into methyl silicone oil, hydrogen silicone oil, vinyl silicone oil and polyether modified silicone oil, phenyl silicone oil, hydroxyl silicone oil, fluorosilicone oil, amino silicone oil, ethyl silicone oil, etc.
Due to different substituents, there are many types of silicone oils, showing different boiling points and decomposition temperatures, such as boiling points, some exceeding 100 degrees, and some exceeding 300 degrees. The decomposition temperature of silicone oil is above 300℃ and can reach up to 500℃. The product of silicone oil decomposition at high temperatures is silica (SiO 2).
According to the above analysis, if the volatile organic compounds contain silicone oil, even a small amount of silicone oil brought into the catalyst will theoretically have the following effects. 1. If the boiling point of silicone oil is high and the decomposition temperature is also high, it will directly adhere to the surface of the catalyst, causing catalyst deactivation; 2. If the boiling point of silicone oil is low, it will decompose at the catalytic temperature to form silica, which will be harmful to the catalyst. The impact is smaller. Whether volatile organic compound catalysts can promote the decomposition of silicone oil has not been reported.
Activated carbon adsorption and concentration catalytic combustion technology is used. Due to the high boiling point of silicone oil, it is difficult to adsorb on the surface of activated carbon and has little impact on subsequent catalytic combustion.


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