Several advantages of dimethicone

Sep 5, 2019

Dimethicone generally refers to a linear silicone product that remains liquid at room temperature and is generally a colorless (or light yellow), odorless, non-toxic, non-volatile liquid. They are not high in molecular weight and are in a flowing state at normal temperature, so they are usually called silicone oil. It is generally not used simply, but is made by a special formulation, often used as an auxiliary material to produce a certain effect. In general, there are three basic forms of silicone oil on the market: pure silicone oil, solution, and emulsion.
Pure silicone oil has very strong stability, heat resistance, antifreeze, good storage, high flash point and high ignition point, and few storage and transportation problems; in fact, it is often necessary to dilute the silicone oil solution, sometimes it is desirable to add active in the solution. Auxiliary agents (catalysts, cross-linking agents, etc.) for storage and use, aliphatic, aromatic or chlorinated hydrocarbons can be used as solvents, and other types of solvents are used in special cases. The solution can only reach 35% concentration, otherwise the viscosity is too large.
A large part of dimethicone or silicone-containing products are in the form of an emulsion. Compared with solvent silicone oil, it has the advantages of being inexpensive, not easy to burn, and harmless to health. Unlike the solvent type, all silicone emulsions are “oil-in-water” heterogeneous systems. The external closed phase is the aqueous phase. The silicone oil is dispersed in the water phase with very fine droplets. It is easily diluted with water to the desired concentration. For application, the stability of the emulsion can be achieved by minimizing the droplets and stabilizing effects of the emulsifier.