【摘要】：近年來,由于全球石油能源危機并且價格持續(xù)走高,保護環(huán)境呼聲日益強烈,潤滑劑對環(huán)境的危害引起越來越多學者的關(guān)注。為了減少環(huán)境的污染,改善潤滑劑的生態(tài)效能,做到使用性能與生態(tài)效能的合理平衡,環(huán)境友好型添加劑成為研究熱點。本文以合成酯為基礎油、聚四氟乙烯脂為基礎脂,3種喬木類植物(銀杏、圓柏、香樟)和3種灌木類植物(爬地柏、沙冬青、衛(wèi)矛冬青)葉表蠟質(zhì)作添加劑,通過氣質(zhì)聯(lián)用(GC-MS)分析了6種植物葉表蠟質(zhì)的主要成分。用高速往復摩擦磨損試驗機評價了植物葉表蠟質(zhì)在鋼-鋁和鋼-鋼摩擦副下的摩擦學性能。用掃描電子顯微鏡(SEM)觀察分析了磨痕表面形貌以及使用二次離子飛行質(zhì)譜(TOF-SIMS)分析了磨痕表面陰陽離子的質(zhì)量。結(jié)果表明:1、通過GC-MS分析了6種植物葉表蠟質(zhì)的主要成分,發(fā)現(xiàn)植物葉表蠟質(zhì)提取物中含有大量的脂肪醇以及少量脂肪酸和脂肪酯等有機物。2、研究表明,銀杏、爬地柏、圓柏等葉表蠟質(zhì)作為潤滑油添加劑和潤滑脂添加劑對鋼-鋁、鋼-鋼摩擦副顯示了一定的減摩和抗磨性能。3、鋁塊磨斑表面TOF-SIMS分析表明,磨斑表面附著的陰離子和鋁發(fā)生反應,在滑動面形成一層摩擦化學反應膜,起到潤滑作用。4、通過ANSYS有限元軟件對本次試驗摩擦磨損過程進行仿真,分析了接觸區(qū)域的應力分布,推測出鋁塊磨損的過程。
[Abstract]:In recent years, due to the global oil energy crisis and the rising price, environmental protection voice is increasingly strong, lubricant harm to the environment has attracted more and more scholars' attention. In order to reduce environmental pollution, improve the ecological efficiency of lubricants, and achieve a reasonable balance between performance and ecological efficiency, environment-friendly additives have become a research hotspot. In this paper, synthetic ester was used as base oil, polytetrafluoroethylene (PTFE) as base lipid, three tree species (ginkgo biloba, juniper, camphor) and three kinds of shrub plants (cypress repens, holly, holly) as additive. The main components of waxy on leaves of 6 species of plants were analyzed by GC-MS (GC-MS). The tribological properties of plant blade surface wax quality under steel-aluminum and steel-steel friction pairs were evaluated by high speed reciprocating friction and wear tester. The surface morphology of wear mark was observed by scanning electron microscope (SEM) and the mass of anion and anion on wear mark surface was analyzed by secondary ion flight mass spectrometry (TOF-SIMS). The results showed that: 1, the main components of six kinds of plant leaf wax were analyzed by GC-MS, and it was found that there were a lot of fatty alcohols, a few fatty acids and fatty esters in the extracts from the leaves of plants. As lubricating oil additives and lubricating grease additives, the waxy surface of cypress showed certain antifriction and antiwear properties to steel-aluminum, steel-steel friction pairs. 3. The TOF-SIMS analysis of the surface of the wear spot of aluminum showed that the anions attached to the surface of the wear spot reacted with aluminum. The friction and wear process of the test was simulated by ANSYS finite element software, the stress distribution in the contact area was analyzed, and the wear process of aluminum block was inferred.
【學位授予單位】：華北電力大學(北京)
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TH117.22

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