仿生微胶囊复合水润滑轴承材料的摩擦性能研究
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摘要
水润滑尾轴承在低速重载的工况下常出现严重磨损的情况.为降低润滑不良造成的尾轴承磨损,本文中通过观察铁犁木表面结构,分析其自润滑机理,设计出仿生微胶囊复合水润滑轴承材料.复合材料以高密度聚乙烯为基底材料,含基础油的仿生微胶囊为添加剂,采用共混的方式加工成型.使用CBZ-1船舶轴系摩擦磨损试验机研究了仿生微胶囊复合材料在不同试验工况下的摩擦性能.通过分析复合材料的磨损量和表面形貌参数,得出复合材料的磨损机理.结果表明:试验工况条件下,仿生微胶囊复合材料能够提升材料的摩擦学性能,其中当仿生微胶囊质量分数为3%时提升效果最明显.该研究为仿生水润滑材料的结构设计以及性能提升等提供试验依据.
The severe abrasion wear of water-lubricated stern bearing usually occurs under the low-speed and heavyduty working conditions.In order to reduce abrasion wear caused by undesirable lubrication,the water-lubricated stern bearing composites modified with biomimetic microcapsules were designed and its microstructure and the selflubricated property of Lignum Vitae were investigated.High Density Polyethylene(HDPE) composites were prepared by blending HDPE powder and biomimetic microcapsules sealing with base oil.The tribological properties of the materials modified with biomimetic microcapsules were investigated using a CBZ-1 tribo-meter under different running conditions.The wear mechanisms of composites were obtained by analyzing the wear properties and surface morphology parameters.The results show that the biomimetic microcapsules improved the tribological properties of composites.The best tribological property is obtained for composite when microcapsules are 3%.This study provides the experimental basis to structural design and performance enhancement of the water-lubricated bearings.
The severe abrasion wear of water-lubricated stern bearing usually occurs under the low-speed and heavyduty working conditions.In order to reduce abrasion wear caused by undesirable lubrication,the water-lubricated stern bearing composites modified with biomimetic microcapsules were designed and its microstructure and the selflubricated property of Lignum Vitae were investigated.High Density Polyethylene(HDPE) composites were prepared by blending HDPE powder and biomimetic microcapsules sealing with base oil.The tribological properties of the materials modified with biomimetic microcapsules were investigated using a CBZ-1 tribo-meter under different running conditions.The wear mechanisms of composites were obtained by analyzing the wear properties and surface morphology parameters.The results show that the biomimetic microcapsules improved the tribological properties of composites.The best tribological property is obtained for composite when microcapsules are 3%.This study provides the experimental basis to structural design and performance enhancement of the water-lubricated bearings.
引文
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[17]Burgert I,Keplinger T.Plant micro-and nanomechanics:experimental techniques for plant cell-wall analysis[J].Journal of Experimental Botany,2013,64(15):4635-4649.doi:10.1093/jxb/ert255.
[18]Ma Wenlong,Lu Long,Guo Hongru,et al.Tribological behavior of Fe-Mo-Graphite and Fe-Mo-Ni-graphite composites at elevated temperature[J].Tribology,2013,33(5):475-480(in Chinese)[马文林,陆龙,郭鸿儒,等.Fe-Mo-石墨和Fe-Mo-Ni-石墨的高温摩擦磨损行为[J].摩擦学学报,2013,33(5):475-480].doi:10.16078/j.tribology.2013.05.014.
[19]Wang Zhensheng,Zhou Lanzhang,Guo Jianting,et al.Friction and wear behavior of Ni Al-Cr(Mo)-Crx Sy self-lubricating composite[J].Tribology,2010,30(6):589-595(in Chinese)[王振生,周兰章,郭建亭,等.Ni Al-Cr(Mo)-Crx Sy自润滑复合材料的摩擦磨损特性[J].摩擦学学报,2010,30(6):589-595].doi:10.16078/j.tribology.2010.06.003.
[2]Yan Xinping,Yuan Chengqing,Bai Xiuqin,et al.Research status and advances of tribology of green ship[J].Tribology,2012,32(4):410-420(in Chinese)[严新平,袁成清,白秀琴,等.绿色船舶的摩擦学研究现状与进展[J].摩擦学学报,2012,32(4):410-420].doi:10.16078/j.tribology.2012.04.016.
[3]Yan Xinping,Yuan Chengqing,Bai Xiuqin,et al.Review and prospect of marine tribology[J].Chinese Journal of Nature,2015,37(3):157-164(in Chinese)[严新平,袁成清,白秀琴,等.船舶摩擦学的发展展望[J].自然杂志,2015,37(3):157-164].
[4]Wang Youqiang,Li Hongqi.Characteristics and outline of the water-lubricated thordon bearings[J].Lubrication Engineering,2003(1):101-104(in Chinese)[王优强,李鸿琦.水润滑赛龙轴承及其润滑性能综述[J].润滑与密封,2003(1):101-104].
[5]Qin H L,Zhou X C,Zhao X Z.A new rubber/UHMWPE alloy for water-lubricated stern bearings[J].Wear,2015,328-329:257-261.doi:10.1016/j.wear.2015.02.016.
[6]Qin Hongling.Study on tribological problem in water-lubricated compound rubber stern tube bearing[D].Wuhan:Wuhan University of Technology,2012(in Chinese)[秦红玲.水润滑复合橡胶尾轴承摩擦学问题研究[D].武汉:武汉理工大学,2012].
[7]Guo Z W,Yuan C Q,Liu A X,et al.Study on tribological properties of novel biomimetic material for water-lubricated stern tube bearing[J].Wear,2017,376-377:911-919.doi:10.1016/j.wear.2017.01.081.
[8]Jia Z N,Hao C Z,Yan Y H,et al.Effects of nanoscale expanded graphiteon the wear and frictional behaviors of polyimidebasedcomposites[J].Wear,2015,338:282-287.
[9]Sahoo R R,Biswas S K.Effect of layered Mo S2 nanoparticles on thefrictional behavior and microstructure of lubricating greases[J].Tribology Letters,2014,53(1):157-171.doi:10.1007/s11249-013-0253-4.
[10]Shen Chenxing,Wu Zuming,Guo Zhiwei,et al.Tribological properties of new water-lubricated bearing materialsunder simulated marine environment[J].Lubrication Engineering,2017(4):1-5(in Chinese)[盛晨兴,吴祖旻,郭智威,等.模拟海洋环境下新型水润滑尾轴承材料摩擦性能[J].润滑与密封,2017(4):1-5].
[11]Shen M X,Zheng J P,Meng X K,et al.Influence of Al2O3 particles on thefriction and wear behaviors of nitrile rubber against 316Lstainlesssteel[J].Journal of Zhejiang University Science A,2015,16 (2):151-160.doi:10.1631/jzus.A1400217.
[12]Espallargas N,Vitoux L,Armada S.The wear and lubrication performance of liquid-solid self-lubricated coatings[J].Surface&Coatings Technology,2013,235(235):342-353.
[13]Guo Hongjun,Zhang Pengzhong,Mu Bo,et al.Preparation and tribological properties of MGO-micro LMs/PS composites[J].Tribology,2016,35(5):546-554(in Chinese)[郭军红,张鹏中,慕波,等.MGO-Micro LMs/PS微胶囊润滑复合材料制备及摩擦学性能[J].摩擦学学报,2016,35(5):546-554].doi:10.16078/j.tribology.2016.05.003.
[14]Khun N W,Cheng H K F,Li L,et al.Thermal,mechanical and tribological properties of polyamide 6 matrix composites containing different carbon nanofillers[J].Journal of Polymer Engineering,2015,35(4):367-376.
[15]Win Khun N,Zhang H,Yang J.Wear Resistance of Polymers With Encapsulated Epoxy-Amine Self-Healing Chemistry[J].Journal of Applied Mechanics,2015,82(5):051006.doi:10.1115/1.4030029.
[16]Khun N W,Zhang H,Sun D W,et al.Tribological behaviors of binary and ternary epoxy composites functionalized with different microcapsules and reinforced by short carbon fibers[J].Wear,2016,s350-351:89-98.
[17]Burgert I,Keplinger T.Plant micro-and nanomechanics:experimental techniques for plant cell-wall analysis[J].Journal of Experimental Botany,2013,64(15):4635-4649.doi:10.1093/jxb/ert255.
[18]Ma Wenlong,Lu Long,Guo Hongru,et al.Tribological behavior of Fe-Mo-Graphite and Fe-Mo-Ni-graphite composites at elevated temperature[J].Tribology,2013,33(5):475-480(in Chinese)[马文林,陆龙,郭鸿儒,等.Fe-Mo-石墨和Fe-Mo-Ni-石墨的高温摩擦磨损行为[J].摩擦学学报,2013,33(5):475-480].doi:10.16078/j.tribology.2013.05.014.
[19]Wang Zhensheng,Zhou Lanzhang,Guo Jianting,et al.Friction and wear behavior of Ni Al-Cr(Mo)-Crx Sy self-lubricating composite[J].Tribology,2010,30(6):589-595(in Chinese)[王振生,周兰章,郭建亭,等.Ni Al-Cr(Mo)-Crx Sy自润滑复合材料的摩擦磨损特性[J].摩擦学学报,2010,30(6):589-595].doi:10.16078/j.tribology.2010.06.003.