Methylphenyl silicone oil has higher viscosity temperature coefficient, lower freezing point and flash point than dimethyl silicone oil with the same viscosity. The viscosity of anti compression property changes faster under pressure. Low phenyl silicone oil has remarkable low temperature resistance, and also has fluidity at - 70 ℃. With the increase of phenyl mole fraction, the high temperature resistance, irradiation resistance, lubricity and solubility in organic solvents of silicone oil are improved; But the low temperature resistance decreased. Silicon oil with high phenyl mole fraction
Oxidation occurs when heated above 250 ℃, and viscosity increases; In particular, silicone oil with 50% phenyl mole fraction can be used for hundreds of hours at 300~350 ℃ by adding stabilizer
IOTA BJ550 Polyphenylmethyldimethylsiloxane -IOTA (phenylsilicone.com)
