| 简介 |
A lubricant composition for a refrigerator and a working fluid composition for a refrigerator using the same are provided to improve compatibility with chlorine-free hydrofluorocarbon refrigerant as cyclic ether compound has an ester group in molecules and to secure a high anticorrosive effect against metal such as a rare-earth magnetic element used for the refrigerator, due to lipophilicity of an alkyl group introduced by an ester group. A lubricant composition for a refrigerator consists of ester compounds obtained from polyol and fatty acid and cyclic ether compounds of five or six-membered rings having a side chain of ester bonding, wherein the contents of cyclic ether compounds are 0.01~5wt.% for ether compounds of 100wt.%. Cyclic ether compound is cyclic acetal compound of five or six-membered rings having a side chain of ester bonding. |
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