In extremely cold natural environments, the stability of material performance becomes a key challenge. Phenyl silicone oil has become an ideal choice for many low-temperature application scenarios due to its unique molecular structure and excellent low-temperature resistance.
Phenyl silicone oil is an organic silicone material formed by replacing part of the methyl group in methyl silicone oil with phenyl. The solidification point of silicone oil with low phenyl content (5%-10%) is as low as -70℃, and it can still maintain fluidity even in extremely low temperature environments. This property enables it to function normally under severe cold conditions of minus 70℃, far exceeding the performance boundary of ordinary lubricating materials. In an ultra-low temperature environment of -120℃, phenyl silicone oil still maintains elasticity and exhibits excellent low-temperature toughness.
As the phenyl content increases, although the high temperature resistance and radiation resistance are improved, the low temperature resistance will decrease. Therefore, in extremely cold environments, the application advantages of low-phenyl silicone oil are more significant. As a potting material for electronic components, it can effectively block the invasion of cold air and ensure the stable operation of equipment at low temperatures. In the fields of spacecraft thermal insulation bonding, nuclear industry radiation protection coating, etc., phenyl silicone oil not only provides reliable physical protection, but also maintains the low-temperature stability of the material system.
This silicone oil also exhibits excellent electrical properties, and can still maintain high dielectric constant and low dielectric loss at low temperatures, making it the preferred solution for insulating impregnation agents for power capacitors in extreme environments. From the lubrication of precision instruments to the protection of polar scientific research equipment, phenyl silicone oil is continuously expanding its low-temperature application boundaries with stable performance. With the continuous advancement of materials science, phenyl silicone oil is expected to show its unique value in more extreme fields.