| 摘要 |
PURPOSE:To prevent the thermal decomposition of a polyol ester oil. CONSTITUTION:The title composition consists of a refrigerant comprising 1,1,1,2- tetrafluoroethane and an oil comprising a polyol ester oil compatible with the refrigerant and containing an additive comprising tricresyl phosphate having a total acid value of 0.1-1.0mgKOH/g for preventing the thermal decomposition of the polyol ester oil. This composition can prevent the corrosion of the roller and vane of a sliding member due to the thermal decomposition of the polyol ester oil to thereby prevent the wear of the roller and vane. |
