Research & Development

Study on tribological properties of inorganic fullerene-like tungsten disulfide as lubricant additive of PAO6

  • Wenting CHEN ,
  • Guangsheng LIU ,
  • Xiaorong CHEN ,
  • Zhen LI ,
  • Minli ZENG ,
  • Nannan WANG
Expand
  • College of Resources,Environment and Materials,Guangxi University,Nanning 530004,China

Received date: 2021-03-31

  Online published: 2022-03-14

Abstract

Inorganic fullerene-like tungsten disulfide(IF-WS2) particles were synthesized by rotating chemical vapor depo-sition,and characterized with X-ray diffractometer(XRD),scanning electron microscope(SEM) and transmission electron microscope(TEM).Surfactants span80 and IF-WS2 were uniformly dispersed in PAO6 oil with vigorous ultrasonic treatment. The effect of addition content,temperature and loading on the antifriction and anti-wear properties of IF-WS2/PAO6 were studied.Moreover,the dispersion and stability of IF-WS2 particles in PAO6 and the effect of IF-WS2 on the oxidation resis-tance of PAO6 were investigated.The results demonstrated that the synthesized IF-WS2 was an irregular hollow cage structure with average size of around 100~200 nm.Under the load of 392 N,optimal addition amount of IF-WS2 of 0.25%,and test temperature of 75 ℃,the average friction coefficient of IF-WS2/PAO6 decreased by 15.3%.When the test temperature was 100 ℃,the average friction coefficient decreased by about 27%,and the wear scar diameter decreased by 43.4%.Under different load and test temperature of 100 ℃,the average friction coefficient decreased firstly and then increased with the increase of load,and the wear scar diameter increased continuously.Dispersion and stability tests showed that span80 effectively improved the dispersion of IF-WS2 particles in PAO6,and the dispersion stability of 0.25% IF-WS2/PAO6 was the best after stewing for 192 h.Additionally,the oxidation stability test proved that adding IF-WS2 particles reduced the antioxidant capacity of PAO6 by 31%.

Cite this article

Wenting CHEN , Guangsheng LIU , Xiaorong CHEN , Zhen LI , Minli ZENG , Nannan WANG . Study on tribological properties of inorganic fullerene-like tungsten disulfide as lubricant additive of PAO6[J]. Inorganic Chemicals Industry, 2022 , 54(1) : 45 -50 . DOI: 10.19964/j.issn.1006-4990.2021-0204

References

[1] HOLMBERG K, ERDEMIR A. Influence of tribology on global en-ergy consumption,costs and emissions[J]. Friction, 2017, 5(3):263-284.
[2] 江泽琦, 方建华, 陈波水, 等. 磁场中含氯化石蜡润滑油的摩擦学性能研究[J]. 合成润滑材料, 2017, 44(1):7-9.
[3] ISABEL D B B M, MOGNE T L, MARTIN J M, et al. Lubrication of carbon coatings with MoS2 single sheet formed by MoDTC and ZDDP lubricants[J]. Lubrication Science, 2006, 18(3):141-149.
[4] NOSONOVSKY M, BHUSHAN B. Green tribology:principles,re-search areas and challenges INTRODUCTION[J]. Philosophical Transactions of the Royal Society A:Mathematical Physical and Engineering Sciences, 2010, 368(1929):4677-4694.
[5] 马珂. 微纳米润滑添加剂的研究[D]. 大连:大连海事大学, 2009.
[6] 王丽, 罗婷, 陈新春, 等. 球形微纳米颗粒的制备及其作为润滑油添加剂的抗磨减摩性能研究进展[J]. 中国粉体技术, 2020, 26(1):53-60.
[7] HOLMBERG Kenneth, KIVIKYTÖ-REPONEN Päivi, HÄRKISAARI Pirita,et al.Global energy consumption due to friction and wear in the mining industry[J]. Tribology International, 2017, 115:116-139.
[8] DAI W, KHEIREDDIN B, GAO H, et al. Roles of nanoparticles in oil lubrication[J]. Tribology International, 2016, 102:88-98.
[9] LIU Lei, ZHOU Wei. MoS2 hollow microspheres used as a green lu-bricating additive for liquid paraffin[J]. Tribology International, 2017, 114:315-321.
[10] QUAN Xin, ZHANG Songwei, HU Ming, et al. Tribological proper-ties of WS2/MoS2-Ag composite films lubricated with ionic liquids under vacuum conditions[J]. Tribology International, 2017, 115:389-396.
[11] RABASO P, VILLE F, DASSENOY F, et al. Boundary lubrication:Influence of the size and structure of inorganic fullerene-like MoS2 nanoparticles on friction and wear reduction[J]. Wear, 2014, 320:161-178.
[12] TANNOUS J, DASSENOY F, LAHOUIJ I, et al. Understanding the tribochemical mechanisms of IF-MoS2 nanoparticles under bound-ary lubrication[J]. Tribology Letters, 2011, 41(1):55-64.
[13] SHAHAR C, ZBAIDA D, RAPOPORT L, et al. Surface functionali-zation of WS2 fullerene-like nanoparticles[J]. Langmuir, 2010, 26(6):4409-4414.
[14] WU J F, ZHAI W S, JIE G F. Preparation and tribological proper-ties of WS2 nanoparticles modified by trioctylamine[J]. Journal of Engineering Tribology, 2009, 223(4):695-703.
[15] WU J, ZHAI W, JIE G. Preparation and tribological properties of tungsten disulfide hollow spheres assisted by methyltrioctylammo-nium chloride[J]. Tribology International, 2010, 43(9):1650-1658.
[16] CHEN Yan, RENNER Peter, LIANG Hong. Dispersion of nanopar-ticles in lubricating oil:A critical review[J]. Lubricants, 2019, 7(1).Doi: 10.3390/lubricants7010007.
[17] LU Z, CAO Z, HU E, et al. Preparation and tribological properties of WS2 and WS2/TiO2 nanoparticles[J]. Tribology International, 2018, 130:1-30.
[18] WU X, GONG K, ZHAO G, et al. MoS2/WS2 quantum dots as high-performance lubricant additive in polyalkylene glycol for steel/steel contact at elevated temperature[J]. Advanced Materials In-terfaces, 2018, 5(1).Doi: 10.1002/admi.201700859.
[19] FANG X, WANG N, CHANG H, et al. Continuous production of IF-WS2 nanoparticles by a rotary process[J]. Inorganics, 2014, 2(2):313-333.
[20] 谢凤, 葛世荣, 李新年, 等. 表面活性剂在润滑油中对纳米石墨分散稳定性的影响[J]. 润滑与密封, 2012, 37(4):1-5.
[21] 刘中常. 纳米材料中纳米粒子团聚的原因及解决方法[J]. 价值工程, 2017(13):157-158.
Outlines

/