The composition,microstructure,mechanical and frictional properties of PTFE and its fillers were represented and analyzed by XRD,SEM,DSC,XPS and large-scale polarizing microscope.The results show that PTFE has a flocculent structure with high melt temperature and decomposition temperature,big contact angle and crystallinity,and low surface hardness,compression strength,friction coefficient,wearing capacity and surface energy.Cooling rate influenced the friction coefficient and wear resistance.Graphite and molybdenum disulfide have a flake structure,and molybdenum disulfide has a big contact angle and low surface energy.Copper powder has a globular structure and its chief component is Cu-Pb alloy,and there is a loose layer on the surface.Carbon fiber has a rod structure and there are C=Oand C-O-C polar groups on the skeleton surface.The decreasing order of water absorption capacity is graphite,carbon fiber,molybdenum disulfide,PTFE and copper powder.
参考文献
| [1] | Zhang H B .Research on the Friction and Wear Property of PTFE Compound Material[D].天津:河北工业大学,2003. |
| [2] | Dang H X;Fan Y;Oyang J L .Development Survey of Solid Lubricant in Japan[J].Solid Lubrication,1981,1:4-10. |
| [3] | Yan Z G.Lubrication Material and Technology[M].北京:中国石化出版社,2000 |
| [4] | Gong D L;Xue Q J .Transfer and Wear of PTFE and PTFE Compound Material[J].Solid Lubrication,1990,4:73-79. |
| [5] | Peng B;Zhang Y J.Test and Application of Filling PTFE Compound Material[J].Lubrication Engineering,1991(02):43-47. |
| [6] | Gong D;Zhang B;Xue Q et al.Investigation of Adhesion Wear of Filled PTFE by ESCA,AES and XRD[J].Wear,1990,137:25-29. |
| [7] | Teng F E;Wang Y M;Jiang X L.X-ray Structure Analysis and Material Property Indication[M].北京:科学出版社,1997 |
| [8] | D Briggs.Surface Analysis of Polymer[M].北京:化学工业出版社,2001 |
| [9] | Yongsok Seo .Noisothermal Crystallization Kinetics of Polyte trafluoroethylene[J].Polymer Engineering and Science,2000,40(06):1293-1297. |
| [10] | Compound Materials Research Institute of Chemical Department.Practical Handbook on Ageing Resistance of Polymers[M].北京:化学工业出版社,1999:6. |
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