摘要:以硼酸、二乙酰胺为原料,采用直接酯化法,合成水溶性的含氮硼酸酯,最佳的反应条件是:菜籽油酸二乙醇酰胺、硼酸、十二醇,按摩尔比1:1:1,反应时间为6h,反应温度为120℃。利用红外光谱仪对添加剂主要官能团进行了表征,并在四球摩擦磨损实验机上考察了在32#基础油中的摩擦性能,结果表明,含硼酸酯1.5%(wt%)时,抗磨效果最佳。测定32号基础油、添加1.5%(wt%)硼酸酯的基础油及添加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。最后测定硼酸酯与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%)硼酸酯和添加1%(wt%)T202复配时,润滑油的抗磨效果最佳。5304
关键词:硼酸酯;T202;润滑油;摩擦化学特性
Study on Synthesis and Tribological Properties of Boric Acid Ester
Abstract:The water-soluble boric acid ester containing nitrogen is the reaction of boric acid, diethylamide using esterification method directly. The best reaction condition is when rapeseed oil acid diethanol amide, boric acid and dodecanol is 1:1:1, the reaction time is 6h, the reaction temperature is 120℃. Using the infrared spectrometer product, and in four ball experimental machine of friction and wearing, determinate of boric acid ester added to 32# base oil and the friction and wear properties after the addition of boric acid ester on these properties were investigated, results showed that when the content of boric acid ester is 1.5%(wt%), wear the best. Determine the largest non-card bite load PB of 32# base oil, adding 1.5%(wt%) of boric acid ester in the 32# base oil and adding the T202 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 boric acid ester 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 boric acid ester and add 1 %(wt%) of T202 compound, the anti-wear of lubricating oil gains its best effects.
Key words: boric acid ester; T202; lubricants; tribological properties
目 录
1文献综述 1
1.1 概述 1
1.2 有机硼酸酯添加剂 1
1.2.1 含羟基化合物的硼酸酯化 1
1.2.2 含氮类化合物的硼酸酯化 2
1.2.3 含硫、磷、氯类化合物的硼酸酯化 2
1.2.4 含有多功能基团的硼酸酯 2
1.3含氮硼酸酯润滑油添加剂的摩擦性能研究 3
1.3.1 含氮硼酸酯摩擦化学机理 3
1.3.2 含氮硼酸酯摩擦性能特点 5
1.3.3 含氮硼酸酯专利 6
1.4本论文的主要工作及创新点 7
1.4.1 本课题的主要工作 7
1.4.2 本课题的创新点 8
2实验试剂与设备 9
2.1实验试剂 9
2.2实验设备 10
2.3实验仪器介绍 10
2.3.1四球机 10
2.3.2红外光谱 11
3实验方法和讨论 12
3.1 实验方法方框图 12
3.2 实验装置图 12
3.3 实验原理及内容 12
3.3.1 菜籽油酸二乙醇酰胺的合成 12
3.3.2 含氮硼酸酯的合成 13
3.4 实验结果讨论 13
3.4.1菜籽油酸二乙醇酰胺与硼酸的最佳摩尔比 14
3.4.2反应时间对收率的影响 14
3.4.3 温度对收率的影响 15 硼酸酯的合成及摩擦化学特性研究:http://www.751com.cn/huaxue/lunwen_2282.html