1. Different harm to human body

Silicone oil: Silicone oil is used as a prosthetic product for female breast enhancement. After more than 40 years of use, in the early 1990s, it was found that it may cause the decline of human immune function or cause cancer, and it was banned in Europe and the United States.
Polydimethylsiloxane: It has no obvious acute and chronic poisoning reactions to humans and mammals, and has no mutagenic or carcinogenic effects. No significant irritation or allergic reaction to eyes or skin, whether oral, inhalation or skin contact, not absorbed by the gastrointestinal tract or skin.

2. Different applications

The application range of silicone oil is very wide. It is not only used in aviation, cutting-edge technology and military technology sectors, but also widely used in various sectors of the national economy. Its application range has been expanded to construction, electronics, textiles, automobiles, machinery, leather and paper, chemical light industry, metal coatings, medicine and medicine and other fields.
The main applications of silicone oil and its derivatives are release agent, shock absorption oil, dielectric oil, hydraulic oil, heat transfer oil, diffusion pump oil, defoamer, lubricant, hydrophobic agent, paint additive, polishing agent, cosmetics and daily necessities Additives, surfactants, particulates. Lehe fiber treatment agent, silicone grease, flocculant.
Polydimethylsiloxane: widely used in cosmetics such as skin cream, hand cream, skin cleanser, sunscreen, shaving cream, deodorant, body wash, hair conditioner, etc. Defoamer. It can dissolve a variety of vitamins, hormones, fungicides and anti-inflammatory agents, and has good compatibility with various ingredients of cosmetics.
It forms a thin hydrophobic layer on the surface of the skin. It maintains vitamins and medicines on the surface of the skin for a long time, has a stable nutritional effect, and also makes hair soft and smooth, improves combing, and increases light.

3. Different physical and chemical properties

Silicone oil: It is generally a colorless (or light yellow), odorless, non-toxic and non-volatile liquid. Silicone oil is insoluble in water, methanol, glycol and ethanol. Soluble in benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene, slightly soluble in acetone, dioxane, ethanol and butanol. Low vapor pressure, high flash and fire points, and low freezing point.
Polydimethylsiloxane: colorless and clear oily liquid; odorless or almost odorless and odorless. Soluble in chloroform, ether or toluene, insoluble in water or ethanol.