Long chain alkyl silicone oil and methyl silicone oil are significantly different in several ways. Here's a breakdown of the differences:
Chemical structure
Long chain alkyl silicone oil: Long chain alkyl silicone oil is a modified polyorganosiloxane whose molecular structure contains a longer alkyl branch chain and a Si-O-Si main chain. This structure gives long chain alkyl silicone oils unique physical and chemical properties.
Methyl silicone oil: methyl silicone oil is dimethyl dichlorosilane as the main raw material, through hydrolysis synthesis to silicone oxygen (Si-O) bond as the main chain, silicon atoms directly connected to methyl organic-inorganic compounds. Its molecular structure is relatively simple, mainly circular or linear structure.
Physical property
Long chain alkyl silicone oil: long chain alkyl silicone oil is usually colorless or light yellow transparent viscous liquid, with high viscosity and good lubricity, mold release, hydrophobicity, antifouling and other characteristics. Its high flash point indicates that its thermal stability is good.
Methylsilicone oil: Methylsilicone oil is also a colorless transparent viscous liquid, but its viscosity range may vary depending on the specific product. Methyl silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity and physiological inertia, and the surface tension is small.
Application field
Long chain alkyl silicone oil: Because of its excellent lubricity and other physical properties, long chain alkyl silicone oil is widely used in shampoo, cream and other cosmetic lubricants, as well as plastic, rubber, metal products release agent. In addition, it can also be used as a material for high-grade lubricants, greases, and additives for high-grade paints, inks, and coatings.
Methyl silicone oil: Methyl silicone oil has a wide range of applications, including insulation, lubrication, shock-proof, dust-proof oil, dielectric fluid and heat carrier; As a defoamer, defilm agent and additive for paint and daily cosmetics; It can also be used for soft finishing of fabrics and other fields.
Sum up
There are significant differences between long chain alkyl silicone oil and methyl silicone oil in chemical structure, physical properties and application fields. Long chain alkyl silicone oil plays an important role in cosmetics, release agents and other fields because of its unique molecular structure and excellent properties. Methyl silicone oil is widely used in many industrial fields because of its excellent heat resistance and electrical insulation. Both have their own merits and play an irreplaceable role in different fields.
