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中文摘要：
以季戊四醇、丙烯酸、油酸为原料通过两步法合成一系列黏度可控的混合酯，利用红外光谱表征混合酯的化学结构，考察混合酯的黏温性能、摩擦磨损性能、热稳定性、挥发损失和铜片腐蚀性能。研究结果表明：所合成的混合酯黏度范围宽，40℃时的黏度在73—483mm^2／s之间，黏度指数约180，倾点在一36～-20℃之间；混合酯的分解温度超过400℃，挥发损失低，铜片腐蚀轻微，是一类性能优良的合成酯类油。
英文摘要：
The mixed esters were synthesized from Pentaerythritol, Oleic Acid and Acrylic, and the molecular structures of mixed esters were identified by FT-IR. The rheological property, tribological property, thermal stability, corrosion of copper and volatile loss were investigated. The results show that the mixed esters have wide viscosity, in the range of 73 - 483 mm2/s at 40 ℃ and viscosity index is about 180,pour points are between -36 - -20 ℃. The mixed esters are a class of synthetic ester oil with perfect property, which have low volatile loss and slight copper corrosion, high thermal stability with decomposition temperature being above 400 ℃.
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