用MM200磨损试验机和45钢环配副,研究不同含量碳酸钙(CaCO3)晶须和10%的聚四氟乙烯(PTFE)共同填充聚醚醚酮(PEEK)复合材料的摩擦磨损性能,用扫描电镜观察磨损表面形貌并分析磨损机理.结果表明,随着复合材料中晶须含量增加,摩擦系数持续降低,最低可降到纯PEEK的1/2;复合材料的磨损率随晶须含量的增加先大幅度减小后又缓慢回升,当晶须含量为15%-20%时,磨损率降至3.3×10-7mm3/Nm,仅为纯PEEK的3.6%,20%CaCO3/10%PTFE/PEEK综合摩擦学性价比较好.CaCO3晶须增强PEEK减少了复合材料在摩擦过程中摩擦副表面粘着和剥层,阻止基体树脂的热塑性变形,同时PTFE的优先粘着转移使得复合材料在对偶件表面形成连续、均匀的转移膜,两者协同有效降低摩擦系数和磨损率,提高材料的摩擦学性能.
参考文献
| [1] | 张人佶,冯显灿.聚醚醚酮及其复合材料的摩擦学研究进展[J].材料研究学报,2002(01):1-8. |
| [2] | Floeck J.;Yuan Q.;Friedrich K. .On the friction and wear behaviour of PAN- and pitch-carbon fiber reinforced PEEK composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1999(1):304-311. |
| [3] | Davim JP.;Baptista AM.;Marques N. .Effect of carbon fibre reinforcement in the frictional behaviour of Peek in a water lubricated environment[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(2):1100-1104. |
| [4] | YU LAIGUI .Action of Transfer Film in Improving Friction and Wear Behaviors of Iron- and Copper-Filled Poly(ether ether ketone) Composites[J].Journal of Applied Polymer Science,2000(2):179-184. |
| [5] | Voort J Vande;Bahadur S .Growth and bonding of transfer film and the role of CuS and PTFE in the tribological behavior of PEEK[J].Wear,1995,181-183(01):212-221. |
| [6] | Kuo MC;Tsai CM;Huang JC;Chen M .PEEK composites reinforced by nano-sized SiO2 and Al2O3 particulates[J].Materials Chemistry and Physics,2005(1):185-195. |
| [7] | Wang Q H;Xue Q J;Liu W M .The friction and wear characteristics of SIC and PTFE filled PEEK[J].Wear,2000,243:140-146. |
| [8] | 彭旭东,马红玉,曾群峰,雷毅.无机纳米微粒及聚四氟乙烯填充聚醚醚酮复合材料的摩擦学性能[J].摩擦学学报,2004(03):240-243. |
| [9] | 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. |
| [10] | W. Hufenbacfa;K. Kunze;J. Bijwe .Sliding Wear Behaviour of PEEK-PTFE Blends[J].Journal of Synthetic Lubrication: Research, Development, and Application of Synthetic and Biodegradable Lubricants,2003(3):227-240. |
| [11] | 李武,靳治良,张志宏.无机晶须材料的合成与应用[J].化学进展,2003(04):264-274. |
| [12] | 尚文宇,谢大荣,刘庆峰,陈寿田.晶须状碳酸钙填充聚合物材料性能的研究[J].中国塑料,2000(03):24-27. |
| [13] | 刘宁,樊友兵,何党庆,尚文宇,刘斌,陈寿田.碳酸钙晶须对聚合物流变性能的影响[J].绝缘材料,2003(01):5-8. |
| [14] | Briscoe B J;Yao L H;Stolarsky T A .The friction and wear of PTFE-PEEK composites:an initial appraisal of the optimum composition[J].Wear,1986,108:357-374. |
| [15] | Rao M.;Kukureka SN.;Liao P.;Chen YK.;Hooke CJ. .The effect of PTFE on the friction and wear behavior of polymers in rolling-sliding contact[J].Polymer engineering and science,1998(12):1946-1958. |
| [16] | 章明秋;张志毅;曾汉民 等.无润滑条件下聚醚醚酮的磨损机制及其磨屑形态的研究[J].摩擦学学报,1996,16(03):226-229. |
| [17] | Z. Zhang;C. Breidt;L. Chang;K. Friedrich .Wear of PEEK composites related to their mechanical performances[J].Tribology International,2004(3):271-277. |
| [18] | Qun-Ji Xue;Qi-Hua Wang .Wear mechanisms of polyetheretherketone composites filled with various kinds of SiC[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1997(1/2):54-58. |
| [19] | Tanaka K;Uchiyama Y;Toyooka S .Mechanism of wear of polytetrafluoroethylene[J].Wear,1973,23(02):153-172. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%