Siloxane is a class of chemical compounds composed of alternating silicon and oxygen, with a general chemical structure of -Si-O-Si-, in which silicon atoms and oxygen atoms are alternately connected. Siloxane is widely present in silicone chemistry, and common siloxanes include silicone oil, silicone, silane and silicone resin. Due to its unique physical and chemical properties, siloxane has been widely used in many industries. As an important class of chemical substances, siloxane has a wide range of applications, including lubrication, cosmetics, coatings, electronics, medical treatment and environmental protection. Its unique structure and properties make it play an indispensable role in modern industry, life and technology.