对3种碳纳米材料(碳纳米管、纳米石墨及碳黑)/PTFE(聚四氟乙烯)复合材料进行了摩擦磨损性能研究,对磨损表面进行了分析.结果表明:3种碳纳米材料均可改善PTFE复合材料耐磨性,以纳米碳黑改善效果较好,其最佳添加含量为7%.纳米石墨可减小PTFE复合材料摩擦系数,碳纳米管和纳米碳黑会增大PTFE复合材料摩擦系数,且含量越高,复合材料摩擦系数增幅越大.无定形纳米碳黑对PTFE耐磨性的改善效果较好,其表面为轻微粘着磨损;结晶型纳米石墨和碳纳米管与PTFE相容性差,其表面为严重粘着磨损.
The tribological properties of PTFE composites filled with three kinds of nanostructured carbon materials (carbon nanotube, nano-carbon black and nano-graphite) were investigated. The worn surfaces of PTFE composites were examined. The results showed that the anti-wear properties for PTFE composites were improved when three kinds of carbon nano materials were filled in. The nano-carbon black was the best filler and its suitable content for PTFE composites was 7%. Nano-graphite could reduce the friction coefficient. But nano-carbon black and carbon nanotube could increase the friction coefficient for PTFE composites, especially when the content of the filler was increased. The noncrystalline carbon material (nano-carbon black) was compatible with PTFE. It can enhance the anti-wear properties betterly and the worn surface was slightly adhesion wearing. The crystalline carbon nano materials (nano-graphite and carbon nanotube) were not compatible with PTFE and it can couse serious adhesion wearing.
参考文献
| [1] | 曲建俊,李显凌,宋宝玉.碳纳米管改性聚四氟乙烯复合材料的摩擦磨损性能研究[J].摩擦学学报,2005(04):333-337. |
| [2] | Olaf Meincke;Dirk Kaempfer;Hans Weickmann;Christian Friedrich;Marc Vathauer;Holger Warth .Mechanical properties and electrical conductivity of carbon-nanotube filled polyamide-6 and its blends with acrylonitrile/butadiene/styrene[J].Polymer: The International Journal for the Science and Technology of Polymers,2004(3):739-748. |
| [3] | Chen HY;Jacobs O;Wu W;Rudiger G;Schadel B .Effect of dispersion method on tribological properties of carbon nanotube reinforced epoxy resin composites[J].Polymer Testing,2007(3):351-360. |
| [4] | S. Kanagaraj;Fatima R. Varanda;Tatiana V. Zhil'tsova .Mechanical properties of high density polyethylene/carbon nanotube composites[J].Composites science and technology,2007(15/16):3071-3077. |
| [5] | Yoshinori Takeichi;Agung Wibowo;Masahiro Kawamura;Masao Uemura .Effect of morphology of carbon black fillers on the tribological properties of fibrillated PTFE[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2008(3/4):308-315. |
| [6] | Yijun Shi;Xin Feng;Huaiyuan Wang;Xiaohua Lu .Tribological and mechanical properties of PTFE composites filled with the combination of short carbon fiber and carbon nano-fiber[J].Key engineering materials,2007(2):689-692. |
| [7] | Feng Xin;Wang Huaiyuan;Shi Yijun .The effects of the size and content of potassium titanate whiskers on the properties of PTW/PTFE composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):253-258. |
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