【摘要】 以菜籽油为原料,通过环氧化、酯交换反应对菜籽油进行改性,制备一种绿色润滑剂基础油环氧脂肪酸甲酯;并对菜籽油和改性菜籽油的结构进行红外表征;同时测定其抗氧化、摩擦、微生物降解和其他理化性能.结果表明:最终产品环氧脂肪酸甲酯的碘值为3.6;最大无卡咬负荷PB值达到333 N;运动粘度为9.6 mm2/s,且具有较强的生物降解能力.红外光谱证明了改性后的菜籽油中存在环氧键和甲酯基团.更多还原

【Abstract】 Rapeseed oil named epoxy fatty acid methyl ester was modified by epoxidation and ester exchange reaction.Then the structure of rapeseed oil and modified rapeseed oil was charactered by infrared Spectroscopy.And oxidative stability,friction,biodegradability and other physical and chemical properties were determined.The results show that the iodine value of epoxy fatty acid methyl ester of the final product obtained is 3.6,the maximum no seizure load PB is 333 N,kinematic viscosity of the product is 9.6 mm2/s,and epoxy fatty acid methyl ester has better biodegrad ability.Infrared spectroscopy proves that epoxy bond and methyl ester group are found in the modified rapeseed oil.更多还原