【摘要】 对我国 4种典型石油酸酯基本性质的研究表明 ,石油酸二元醇二酯的倾点、密度和折射率比石油酸一元脂肪醇酯大。石油酸中脂肪酸含量的增加 ,将显著升高石油酸酯的倾点。石油酸酯类油可达到多种粘度级别 (10 0℃下粘度为 3～ 17mm2 /s) ,并具有良好的粘温性能 (粘度指数为90～ 115 )和低的倾点 (- 5 8～ - 2 0℃ )。更多还原

【Abstract】 The basic properties of four domestic petroleum acid esters were determined. The pour point, density and refractive index of the petroleum acid esters esterified with dibasic alcohol were higher than those esterified with monobasic alcohol. High fatty acid contents in raw acids can raise the pour points of the esters remarkably. The petroleum acid ester oils possessed viscosity in the range of 3～17 mm 2/s at 100 ℃, their viscosity indices were between 90～115, and the pour points were in the range of -58～-20 ℃.更多还原