通过机械共混、冷压成型、烧结的方法制备聚醚醚酮(PEEK)与纳米 SiO2颗粒共同填充改性聚四氟乙烯(PTFE)复合材料试样。利用 MRH-3型环-块摩擦磨损实验机对不同配方比例的复合材料在不同实验条件下进行摩擦学性能实验。利用扫描电镜对试样磨损后的摩擦表面形貌和钢环表面的转移膜进行观察和分析。结果表明，填充5％PEEK 的 PTFE 复合材料的摩擦系数达到最低值；10％PEEK/PTFE 复合材料中添加不同体积比的纳米 Si O 2填料可以显著地降低材料的体积磨损率，其中5％Nano-SiO2/10％PEEK/PTFE复合材料的体积磨损率最小；载荷和速度的变化对 Nano-SiO2/PEEK/PTFE 复合材料的摩擦磨损性能的影响显著，而环境温度的变化对该复合材料的摩擦系数与磨损率的影响不明显。
PEEK and nano-SiO2 particles synergetic filled PTFE composites were prepared by mechanical blend-ing-molding-sintering method.The tribological behavior of composites with different volume fraction of fillers was tested on different test conditions by a MRH-3 block-on-ring friction and wear tester.The transfer film on counterpart GCr1 5 ring was inspected and anslyzed with scanning electronic microscopy (SEM).The results demonstrated that the lowest friction coefficient was gained when the PTFE composite was filled with only 5%PEEK.The special wear rate of 10%PEEK/PTFE were decreased clearly with filled different contents of nano-SiO2 particles.The special wear rate of the sample with 5% nano-SiO2 and 10%PEEK had the lowest volume wear rete.The load and sliding speed effect significantly on the tribological behavior of nano-SiO2/PEEK/PTFE composites,but the effect of environmental temperature on the friction coefficient and wear rate of the compos-ite is not obvious.
参考文献
| [1] | Gao G .The Research on Stirling Engine Piston Rod Seal-ing Structure and Materials[D].Lanzhou:Lanzhou Uni-versity of Technology,2012. |
| [2] | Jin D H.The Stirling Engine Technologies[M].Harbin:Harbin Engineering University Press,2009 |
| [3] | J. R. Vail;B. A. Krick;K. R. Marchman;W. Gregory Sawyer .polytetrafluoroethylene (PTFE) fiber reinforced polyetheretherketone (PEEK) composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2011(11/12):737-741. |
| [4] | David L. Burris;W. Gregory Sawyer .Tribological behavior of PEEK components with compositionally graded PEEK/PTFE surfaces[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(1/2):220-224. |
| [5] | David L. Burris;W. Gregory Sawyer .A low friction and ultra low wear rate PEEK/PTFE composite[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2006(3/4):410-418. |
| [6] | Jayashree Bijwe;Sukanta Sen;Anup Ghosh .Influence of PTFE content in PEEK-PTFE blends on mechanical properties and tribo-performance in various wear modes[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2005(10):1536-1542. |
| [7] | Babu Lal;Sarfaraz Alam;G. N. Mathur .Tribo-investigation on PTFE lubricated PEEK in harsh operating conditions[J].Tribology letters,2007(1):71-77. |
| [8] | A. Avanzini;G. Donzella;A. Mazzu;C. Petrogalli.Wear and rolling contact fatigue of PEEK and PEEK composites[J].Tribology International,2013:22-30. |
| [9] | R. Schroeder;F. W. Torres;C. Binder;A. N. Klein;J. D. B. de Mello .Failure mode in sliding wear of PEEK based composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2013(1/2):717-726. |
| [10] | Min Zhi Rong;Ming Qiu Zhang;Hong Liu;Hanmin Zeng;Bernd Wetazel;Klaus Friedrich .Microstructure and tribological behavior of polymeric nanocomposites[J].Industrial Lubrication and Tribology,2001(2):72-77. |
| [11] | Zhang H;Zhang Z;Friedrich K;Eger C .Property improvements of in situ epoxy nanocomposites with reduced interparticle distance at high nanosilica content[J].Acta materialia,2006(7):1833-1842. |
| [12] | Min Zhi Rong;Ming Qin Zhang;Yong Xiang Zheng;Han Min Zeng;K.Friedrich .Improvement of tensile properties of nano-SiO_2/PP composites in relation to percolation mechanism[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(7):3301-3304. |
| [13] | Qiao H;Guo Q;Tian A et al.A study on friction and wear characteristics of nanometer Al2 O3/PEEK com-posites under the dry sliding condition[J].Tribology In-ternational,2007,40(1):105-110. |
| [14] | Farvizi M;Ebadzadeh T;Vaezi M R et al.Effect of nano Al2 O3 addition on mechanical properties and wear behavior of NiTi intermetallic[J].Materials and Design,2013,51(10):375-382. |
| [15] | Zheng-zhi Wang;Ping Gu;Xiao-ping Wu;Hui Zhang;Zhong Zhang;Martin Y.M. Chiang .Micro/nano-wear studies on epoxy/silica nanocomposites[J].Composites science and technology,2013(Apr.):49-57. |
| [16] | W. Gregory Sawyer;Kevin D. Freudenberg;Praveen Bhimaraj;Linda S. Schadler .A study on the friction and wear behavior of PTFE filled with alumina nanoparticles[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2003(5/6):573-580. |
| [17] | Li F;Hu K;Li J et al.The friction and wear character-istics of nanometer ZnO filled polytetrafluoroethylene[J].WEAR,2001,249(10-11):877-882. |
| [18] | 何春霞.不同纳米材料与石墨混合填充PTFE复合材料摩擦磨损性能[J].复合材料学报,2002(06):111-115. |
| [19] | STEVEN E. McELWAIN;THIERRY A. BLANCHET;LINDA S. SCHADLER;W. GREGORY SAWYER .Effect of Particle Size on the Wear Resistance of Alumina-Filled PTFE Micro- and Nanocomposites[J].Tribology Transactions,2008(3):247-253. |
| [20] | 杨东亚,王月,董悦,龚俊,高贵,王宏刚.不同纳米填料增强PPS-PTFE共混物的摩擦磨损性能分析[J].功能材料,2014(06):6011-6015. |
| [21] | Cai H.;Yan FY.;Xue QJ.;Liu WM. .Investigation of tribological properties of Al2O3-polyimide nanocomposites[J].Polymer Testing,2003(8):875-882. |
| [22] | Chang L;Zhang Z;Breidt C et al.Tribological proper-ties of epoxy nanocomposites:Ⅰ.enhancement of the wear resistance by nano-TiO2 particles[J].WEAR,2005,258(1-4):141-148. |
| [23] | Wang Q;Xu J;Shen W et al.An investigation of the friction and wear properties of nanometer Si3 N4 filled PEEK[J].WEAR,1996,196(1-2):82-86. |
| [24] | 杨东亚,王月,龚俊,王宏刚,任俊芳,高贵.聚苯硫醚与纳米 Al2O3填充聚四氟乙烯复合材料的摩擦磨损性能[J].润滑与密封,2013(11):72-77. |
| [25] | 杨东亚,董悦,龚俊.聚醚醚酮填充聚四氟乙烯摩擦学性能[J].润滑与密封,2013(10):60-63. |
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