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纳米镍合成及其纳米润滑脂的性能研究

时间:2020-04-28 21:35来源:毕业论文
测定了纳米Ni、Ni(OH)2添加到基础油后的摩擦磨损性能及其添加量对这些性能的影响进行了考察,并选出最佳减摩抗磨的尺寸

摘要:通过控制不同类的反应条件,合成出粒径不同的纳米Ni、Ni(OH)2。使用红外光谱仪测试产物,然后在摩擦磨损试验和四球试验仪器上,测定了纳米Ni、Ni(OH)2添加到基础油后的摩擦磨损性能及其添加量对这些性能的影响进行了考察,并选出最佳减摩抗磨的尺寸。结果发现:(1)纳米镍:当醋酸镍和水合肼的摩尔比为1:9.37,反应温度为75℃,反应时间为2h时,得到的产率最高为75.34%。利用红外光谱仪分析产物,并在摩擦磨损试验机和四球试验机上,测定了纳米镍添加到基础油后的摩擦磨损性能,结果显示:含纳米镍1.5%(wt%)时,抗磨效果最佳。(2)纳米氢氧化镍:反应温度为70℃,反应时间为1h,水稀释量比为1:7时,收率较高为75.82%。利用红外光谱仪分析产物,并考察添加到基础油后的摩擦磨损性能及其添加量对性能的影响进行。结果表明,含纳米氢氧化镍1.5%(wt%)时,抗磨效果最佳。基础油的测试:1.5%(wt%)的纳米氢氧化镍加到基础油里与T202加到基础油里的最大无卡咬负荷PB,结果表明添加T202后基础油的PB值最大。最后测定纳米氢氧化镍与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%)纳米氢氧化镍时和添加1%(wt%)T202复配时,润滑油的抗磨效果最佳。48215

毕业论文关键词: 纳米镍;纳米氢氧化镍;液相还原;润滑油脂;摩擦磨损 

Study on synthesis of nano nickel

And the characteristics on its nano grease

Abstract: By controlling the reaction conditions, different classes, different particle size synthesized nano-Ni, Ni (OH)2. Using an infrared spectrometer to test the product, and then on the friction and wear tests and four-ball test instrument to measure nano-Ni, Ni (OH)2 added to the impact of friction and wear properties and amount of the base oil after these properties were investigated, and select the best anti-friction wear size. The results showed that:(1) Nano-Nickel: When the reaction temperature is 75℃, reaction time 2h, the molar ratio of nickel acetate and hydrazine hydrate is 1:9.37, the highest yield was obtained 75.34 percent. By infrared spectroscopy analysis of the product, and on the friction and wear tester and four-ball tester, determination of nickel nanoparticles added to the friction and wear properties of the base oil after results showed that: nano Nickel 1.5% (wt%), the wear is best (2): nano nickel hydroxide: reaction temperature is 70℃, reaction time was 1h, diluted with water ratio of 1:7, the higher the yield was 75.82%. The product was analyzed by infrared spectroscopy, and examine the impact of adding friction and wear properties and amount of the base oil after the performance will be. The results showed that the nano-nickel hydroxide containing 1.5% (wt%), the best anti-wear. Test base oil: 1.5% (wt%) of nano-nickel hydroxide is added to the base oil was added to the base oil and T202 in the largest non-card bite load PB, PB results show that the value of the base oil is added after T202 maximum. Finally, determine the effect of friction and chemical properties of both the amount of nano-nickel hydroxide and T202 compound after the friction and wear properties of the base oil, the results showed that when adding 1.5% (wt%) of nano nickel hydroxide and add 1 % (wt%) T202 compound, the best anti-wear effect of oil.

Key words: nickel nanoparticles; nanometer nickel hydroxide; T202; grease; antiwear

 目  录

1 绪论 1

1.1 本课题的研究背景 1

1.2 润滑油添加剂和纳米材料 2

1.3 纳米微粒作为润滑油脂添加剂的研究进展 2

1.3.1纳米单质微粒的摩擦性能 纳米镍合成及其纳米润滑脂的性能研究:/huaxue/lunwen_50745.html

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