What is silicone?

Aug 12, 2025 Leave a message

Silicone seems to be a rather mysterious and sophisticated thing to many people. As a practitioner with nine years of experience in the silicone industry, I will do my best to explain silicone clearly to everyone. There are three most fundamental raw materials for silicone: Metallic silicon, methanol and hydrogen chloride.

First, let methanol react with hydrogen chloride to form chloromethane (CH3Cl), and then let silicon react with chloromethane. The main products obtained include methyltrichlorosilane (Si CH3Cl3), dimethyldichlorosilane (Si (CH3) 2Cl2), trimethylchlorosilane (Si (CH3) 3Cl), and tetrachlorosilane (Si Cl4). Hydrolyze these chlorosilanes to obtain various silanols. Just replace the chlorine atoms (Cl) in the chlorosilanes with hydroxyl groups (OH).

 

All these hydroxyl groups are reactive. Their reactivity, combined with the four-directional characteristics of silicon atoms, gives rise to the myriad variations of organosilicon.