摘要：通过实验的方法，确定了最适宜的合成纳米氧化铁的条件即纳米氧化铁与油酸的摩尔比为1:2，反应温度80℃，反应时间2h的条件下进行反应，得出的纳米氧化铁的亲油度最好，为56.8%。采用红外光谱对其主要官能团进行表征，测定纳米氧化铁添加到基础油后的摩擦磨损性能及纳米氧化铁的添加量对这些性能的影响进行了考察。结果表明，含纳米氧化铁1.5%（wt%）时，为最佳值。测定基础油、添加1.5%（wt%）纳米氧化铁的基础油、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最大。最后测定纳米氧化铁与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%）纳米氧化铁时和添加1%（wt%）T202复配时，润滑油的抗磨效果最佳。21007
毕业论文关键词：纳米氧化铁；合成；微乳液；T202；润滑油；抗磨减摩
Preparation of chemically-modified iron oxide nanoparticles
Abstract:Through the experimental method to determine the optimum conditions for the synthesis of iron oxide nanoparticles. The molar ratio of iron oxide nanoparticles with oleic acid was 1:2, reaction temperature 80 ℃, reaction time 2h the reaction conditions, the degree of pro-oil-derived iron oxide nano-best 56.8%. Using infrared spectroscopy to characterize its main functional groups，determinating of iron oxide nanoparticles added to the effects of friction and wear properties of the base oil and add the amount of iron oxide nanoparticles on these properties were investigated.The results show that the iron oxide nanoparticles containing 1.5% (wt%), the best value.Determination of base oil, adding 1.5% (wt%) iron oxide nanoparticles in the base oil, base oil add the T202's three largest non-card bite load PB, the results show that the base oil after adding T202 PB maximum. Final determination of iron oxide nanoparticles and T202 compound, and after the chemical properties of the friction between the base oil content on the friction and wear properties, the results show that when adding 1.5% (wt%) iron oxide nanoparticles and add 1 % (wt%) T202 compound, the best anti-wear lubricants.
Key words: iron oxide nanoparticles, synthesis, microemulsion,T202, lubricant, anti-wear frictional
目 录
1 纳米氧化铁的制备综述30
1.1纳米材料概述.30
1.2纳米微粒的基本特性.30
1.2.1表面与界面效应.30
1.2.2小尺寸效应.31
1.2.3量子效应.31
1.2.4宏观量子隧道效应 31
1.3纳米氧化铁的概述.31
1.4纳米氧化铁的制备工艺.31
1.4.1微乳液法.31
1.4.2溶胶−凝胶法 .31
1.5氧化铁磁性纳米粒子的表面修饰 .32
1.5.1无机材料修饰.32
1.5.2有机小分子材料修饰.32
1.5.3有机高分子材料修饰.32
1.5.4多功能磁性复合纳米粒子的构建.32
1.6纳米微粒表面修饰的目的及作用33
1.7纳米微粒作为润滑油添加剂的研究33
1.7.1纳米微粒作为润滑油添加剂的作用机理33
1.7.2纳米微粒作为润滑油添加剂的优势34
2 实验仪器35
2.1实验试剂与实验仪器.35
2.1.1实验试剂.35
2.1.2实验仪器.36
2.1.3实验装置图.36
2.2实验仪器介绍.36
2.2.1四球机.36
2.2.2红外光谱.37
3 实验方法.38
3.1实验目的38
3.2 纳米氧化铁的制备.38
3.2.1 实验方法框图.38
3.2.2 实验步骤.38
3.3 纳米氧化铁的摩擦磨损性能及与T202复配后的摩擦磨损性能的测定 38
4 实验结果与讨论 40 化学修饰的纳米氧化铁的制备:http://www.751com.cn/huaxue/lunwen_13002.html