孙文东,刘晓玲,张翔,郭峰.氧化石墨烯和二烷基二硫代磷酸锌添加剂对基础油PAO10摩擦学性能的影响[J].表面技术,2022,51(7):117-126.
SUN Wen-dong,LIU Xiao-ling,ZHANG Xiang,GUO Feng.Effect of Graphene Oxide and Zinc Dialkyl Dithiophosphate on Tribological Properties of Base Oil PAO10[J].Surface Technology,2022,51(7):117-126
氧化石墨烯和二烷基二硫代磷酸锌添加剂对基础油PAO10摩擦学性能的影响
Effect of Graphene Oxide and Zinc Dialkyl Dithiophosphate on Tribological Properties of Base Oil PAO10
  
DOI:10.16490/j.cnki.issn.1001-3660.2022.07.011
中文关键词:  氧化石墨烯  二烷基二硫代磷酸锌  添加剂  摩擦学性能  成膜特性  协同效应
英文关键词:graphene oxide  zinc dialkyl dithiophosphate  additive  tribological properties  film forming characteristic  synergistic effect
基金项目:国家自然科学基金项目(51475250,51775286);泰山学者人才工程(TS20190943)
作者单位
孙文东 青岛理工大学 机械与汽车工程学院,山东 青岛 266520 
刘晓玲 青岛理工大学 机械与汽车工程学院,山东 青岛 266520 
张翔 青岛理工大学 机械与汽车工程学院,山东 青岛 266520 
郭峰 青岛理工大学 机械与汽车工程学院,山东 青岛 266520 
AuthorInstitution
SUN Wen-dong School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China 
LIU Xiao-ling School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China 
ZHANG Xiang School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China 
GUO Feng School of Mechanical and Automotive Engineering, Qingdao University of Technology, Shandong Qingdao 266520, China 
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中文摘要:
      目的 探究氧化石墨烯(GO)和二烷基二硫代磷酸锌(ZDDP)添加剂的摩擦学性能以及协同作用机理。方法 选用GO和ZDDP作添加剂,利用纳米粒度分析仪、傅里叶变换红外光谱仪(FTIR)和原子力显微镜(AFM)分别对GO的粒径、表面官能团和层数进行表征。在四球摩擦试验机上对GO的摩擦磨损性能进行初步研究,并考察了ZDDP添加剂以及ZDDP和GO混合添加剂对基础油摩擦磨损性能的影响。利用金相显微镜、扫描电子显微镜(SEM)和能谱仪对钢球磨斑直径、磨斑形貌和磨斑表面的元素进行分析。利用球–盘点接触光干涉油膜厚度测量试验台,研究了GO和ZDDP在乏油条件下对基础油成膜特性的影响。结果 GO表现出了良好的减摩抗磨性能,在0.03%时减摩抗磨效果最佳,与基础油相比,摩擦因数降低了31.9%,磨斑直径减小了约20.1%;当ZDDP质量分数为2.5%时,油样的摩擦因数约为0.067,磨斑直径约为407 μm,与PAO10纯基础油相比,分别降低了约18.5%和41.86%;当ZDDP和GO的质量分数分别为2.5%和0.01%时,油样的减摩性能得到了有效提高,摩擦因数约为0.056,与仅添加ZDDP的油样相比,摩擦因数降低了约16.7%;当卷吸速度为90 mm/s和180 mm/s时,单独添加ZDDP或添加ZDDP和GO均可有效减缓接触区内的乏油状态,提高基础油的中心膜厚。结论 GO添加剂具有优异的减摩抗磨性能。GO和ZDDP作为复配添加剂有效地减缓了摩擦对偶间的摩擦磨损,表现出了较好的协同作用。在乏油条件下,在PAO10基础油中添加GO、ZDDP以及ZDDP和GO复配添加剂时,均可不同程度地减缓接触区内的乏油状况。
英文摘要:
      To explore the tribological properties and synergistic mechanism of graphene oxide(GO) and zinc dialkyl dithiophosphate(ZDDP). GO and ZDDP were selected as additives, zetasizernano, fourier transform infrared spectroscopy(FTIR) and atomic force microscopy(AFM) were used to characterize the particle size, functional group and layer number of GO. The preliminary study on the friction and wear properties of GO using the four-ball testing machine, and the friction and wear properties of ZDDP and mixed additives of ZDDP and GO on the base oil were investigated. The diameter, morphology and surface elements of grinding spots were analyzed by metallographic microscope, scanning electron microscope(SEM) and energy spectrometer. Effects of GO and ZDDP on film forming characteristics of the base oil under starvation condition were studied with a ball-disk optical interferometer. GO shows good anti-wear performance. When the mass fraction of GO is 0.03%, the anti-friction and anti-wear performance of the oil is the best, the friction coefficient is reduced by 31.9%, and the wear scar diameter is by about 20.1%. When 2.5% of ZDDP is added to the base oil PAO10, the friction coefficient of the oil is 0.067, and the wear scar diameter is 407 μm, which is reduced by 18.5% and 41.86% respectively. When the mass fraction of ZDDP and GO is 2.5% and 0.01% respectively, the anti-friction performance of the oil is effectively improved, and the friction coefficient is about 0.056, which is reduced by about 16.7%. At the entrainment speed of 90 mm/s and 180 mm/s, central film thickness of the base oil can be increased, and oil starvation can be alleviated when ZDDP and the addition of ZDDP and GO was added. GO has excellent anti-friction and anti-wear properties. The anti-friction and anti-wear properties of the friction pairs can be improved by using blends of GO and ZDDP due to better synergistic role. Starvation conditions in the contact zone can be alleviated in different degrees when GO, ZDDP and blends of GO and ZDDP is added to the base oil PAO10.
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