Product Name and Structure
Silicone oil D4, also known as octamethylcyclotetrasiloxane, is a cyclic organosiloxane compound. Its molecular structure is a stable ring, with silicon atoms and oxygen atoms arranged alternately to form a ring, and methyl groups attached to silicon atoms. This structure gives it unique physical and chemical properties.
From the perspective of chemical composition, it is centered on silicon, oxygen acts as a bridge to connect silicon atoms, and methyl groups surround silicon atoms, affecting the interaction between molecules.


Intermediates
In the field of organosilicon chemistry, D4 is an important intermediate. It can be converted into other organosilicon compounds through a variety of chemical reactions. For example, under the action of a catalyst, it can undergo polymerization reactions with other siloxanes to generate polysiloxanes of different molecular weights and structures. It can also react with some compounds with active groups to introduce active groups into the organosilicon molecular chain, further expanding its chemical properties and application range.


Uses
In the field of personal care, D4 is often used in skin care products and cosmetics. Because it has good lubricity and spreadability, it can make the product texture more delicate and smooth, and enhance the use experience. At the same time, it can also form a protective film on the skin surface, which plays a role in moisturizing and waterproofing. In industry, it can be used to make silicone oil, silicone rubber and other materials. As one of the raw materials of silicone oil, it can give silicone oil excellent high and low temperature resistance, chemical stability, etc., and is widely used in mechanical lubrication, electronic and electrical insulation and other fields. In the textile industry, after adding silicone oil additives made of D4, textiles can obtain softness, antistatic and other properties.