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摘要：用硼酸、硝酸镧、氢氧化钠、正丁醇、石油醚反应生成十二烷氧基硼酸镧。最佳反应条件是：硝酸镧与硼砂的摩尔比是1:1.58，反应温度是125摄氏度时。利用红外光谱仪分析产物，并在环-块式摩擦磨损试验机和四球试验机上，测定了十二烷氧基硼酸镧添加到基础油后的摩擦磨损性能及十二烷氧基硼酸镧的添加量对这些性能的影响进行了考察，结果表明，含十二烷氧基硼酸镧1.5%（wt%）时，抗磨效果最佳。测定基础油、添加1.5%（wt%）十二烷氧基硼酸镧的基础油及添加T202的基础油三者的最大无卡咬负荷PB，结果表明添加T202后基础油的PB值最大。最后测定十二烷氧基硼酸镧与T202复配后的摩擦化学性能以及两者的添加量对基础油的摩擦磨损性能的影响，结果表明，当添加1.5%（wt%）十二烷氧基硼酸镧时和添加1%（wt%）T202复配时，润滑油的抗磨效果最佳。10913
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关键词：润滑油添加剂，十二烷氧基硼酸镧，合成，摩擦特性，
Preparation of lanthanum borate dodecyloxy and friction characteristics
Abstract ：In this experiment, lanthanum borate dodecyloxy was synthesized by boric acid, lanthanum nitrate, sodium hydroxide, butanol, petroleum ether. The optimum reaction conditions are: lanthanum nitrate molar ratio of 1:1.58 borax, the reaction temperature was 125 degrees Celsius. Using the infrared spectrometer product, and in the ring - pieces type friction and wear tester and four ball, determinate of Lanthanum borate dodecyloxy added to base oil and the friction and wear properties after the addition of Lanthanum borate dodecyloxy on these properties were investigated, results showed that when the content of Lanthanum borate dodecyloxy is 1.5%(wt%),wear the best. Determine the largest non-card bite load PB of base oil, adding 1.5%(wt%) of Lanthanum borate dodecyloxy in the base oil and adding the T202's base oil, the results show that the base oil after adding T202,its PB is maximum. Finally, determine the friction chemical about the compound of Lanthanum borate dodecyloxy and T202 and the friction and wear performance impact of these two adding amount of base oil, the results show that when add 1.5%(wt%) of Lanthanum borate dodecyloxy and add 1 %(wt%) of T202 compound, the anti-wear of lubricating oil gains its best effects.
Keywords: lubricant additives, dodecyloxy lanthanum borate, synthetic, abrasion resistance, Friction characteristics,
目录
1．绪论 1
1.1课题目的与意义 1
1.2硼酸盐润滑油抗磨剂 1
1.2.1用途 2
1.2.2特点 2
1.3硼酸盐添加剂抗磨减压作用机理 5
1.4硼酸盐添加剂摩擦学性能 6
1.5硼酸盐添加剂制备 7
2.实验仪器试剂及方法 8
2.1四球仪 8
2.1.1四球仪简介 8
2.1.2四球仪机理 8
2.1.3四球仪常规评定指标 9
2.2红外光谱仪 10
2.3主要试剂 11
2.4实验设备 11
2.5实验装置图 12
3.十二烷氧基硼酸镧合成 13
3.1实验目的 13
3.2实验步骤 13
3.3实验方法方框图 13
3.4结果分析与讨论 14
3.4.1物料配比的影响 14
3.4.2温度的影响 15
3.5红外谱征 17
4.十二烷氧基硼酸镧摩擦特性 18
4.1结果与讨论 18
5.结论 23
致谢 24
参考文献 25
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