| 摘要 |
An environment-friendly and flame-resistant composition of hydraulic working fluid is provided to improve an environment-friendly effect and to secure good flame resistance, lubricating ability, and thermal and oxidative stability by adding vegetable oil. An environment-friendly and flame-resistant composition of hydraulic working fluid is produced by adding 0.1~20wt.% of an antioxidant, 0.1~15wt.% of a wear resistant additive, and 0.1~15wt.% of a thickening agent to 50~99.9wt.% of one or at least one lubricating base oil selected from a group comprising vegetable oil and synthetic polyol ester. The vegetable oil is one of rape seed oil, canola oil, sunflower oil, caster oil, soybean oil, olive oil, jatropha curcas oil, and palm oil. The synthetic polyol ester is neopentyl glycol ester, trimethylol propane ester, or pentaerythritol ester. |
