Chemical Reaction Mechanism of Polytetrafluoroethylene on Aluminum Surface under Friction Condition
作者： Tasuku Onodera , Kenji Kawasaki , Takayuki Nakakawaji , Yuji Higuchi , Nobuki Ozawa
DOI: 10.1021/JP412461Q
关键词: Chemical reaction 、 Polymer chemistry 、 Chemical engineering 、 Polymer 、 Oxide 、 Polytetrafluoroethylene 、 Aluminium 、 Catalysis 、 Fluorine 、 Tribology 、 Materials science
摘要: To develop a novel shearing resin material, it is necessary to understand the mechanism of friction-induced chemistry during friction process. For this purpose, chemical reaction polytetrafluoroethylene (PTFE) on an aluminum surface was first focused and investigated by quantum molecular dynamics method. From our simulation, atom native oxide led tribochemical reaction, which included defluorination PTFE fluoride formation. It inferred that acted as catalytic Lewis acid in fluorine removed from polymer chain. The tribological performance system reduced forming since self-lubrication inhibited interfacial electrostatic repulsion. On basis study, suggested key increase between reactive defluorinate...
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W.X. Chen, F. Li, G. Han, J.B. Xia, L.Y. Wang, J.P. Tu, Z.D. Xu, Tribological Behavior of Carbon-Nanotube-Filled PTFE Composites Tribology Letters. ,vol. 15, pp. 275- 278 ,(2003) , 10.1023/A:1024869305259
R. S. Mulliken, Electronic Population Analysis on LCAO–MO Molecular Wave Functions. I The Journal of Chemical Physics. ,vol. 23, pp. 1833- 1840 ,(1955) , 10.1063/1.1740588
R. S. Mulliken, Electronic Population Analysis on LCAO–MO Molecular Wave Functions. II. Overlap Populations, Bond Orders, and Covalent Bond Energies The Journal of Chemical Physics. ,vol. 23, pp. 1841- 1846 ,(1955) , 10.1063/1.1740589
H. Unal, A. Mimaroglu, U. Kadıoglu, H. Ekiz, Sliding friction and wear behaviour of polytetrafluoroethylene and its composites under dry conditions Materials & Design. ,vol. 25, pp. 239- 245 ,(2004) , 10.1016/J.MATDES.2003.10.009
Kentaro Hayashi, Seiichiro Sato, Shandan Bai, Yuji Higuchi, Nobuki Ozawa, Tomomi Shimazaki, Koshi Adachi, Jean-Michel Martin, Momoji Kubo, Fate of methanol molecule sandwiched between hydrogen-terminated diamond-like carbon films by tribochemical reactions: tight-binding quantum chemical molecular dynamics study Faraday Discussions. ,vol. 156, pp. 137- 146 ,(2012) , 10.1039/C2FD00125J
I. N. Bhattacharya, S. C. Das, P. S. Mukherjee, S. Paul, P. K. Mitra, Thermal decomposition of precipitated fine aluminium trihydroxide Scandinavian Journal of Metallurgy. ,vol. 33, pp. 211- 219 ,(2004) , 10.1111/J.1600-0692.2004.00686.X
Peter R Barry, Patrick Y Chiu, Scott S Perry, W Gregory Sawyer, Simon R Phillpot, Susan B Sinnott, The effect of normal load on polytetrafluoroethylene tribology. Journal of Physics: Condensed Matter. ,vol. 21, pp. 144201- ,(2009) , 10.1088/0953-8984/21/14/144201
Dag Werner Breiby, Theis Ivan Sølling, Oliver Bunk, René Bøgelund Nyberg, Kion Norrman, Martin Meedom Nielsen, Structural Surprises in Friction-Deposited Films of Poly(tetrafluoroethylene) Macromolecules. ,vol. 38, pp. 2383- 2390 ,(2005) , 10.1021/MA0492465
J. Ye, H.S. Khare, D.L. Burris, Transfer film evolution and its role in promoting ultra-low wear of a PTFE nanocomposite Wear. ,vol. 297, pp. 1095- 1102 ,(2013) , 10.1016/J.WEAR.2012.12.002
Brandon A. Krick, Jeffrey J. Ewin, Gregory S. Blackman, Christopher P. Junk, W. Gregory Sawyer, Environmental dependence of ultra-low wear behavior of polytetrafluoroethylene (PTFE) and alumina composites suggests tribochemical mechanisms Tribology International. ,vol. 51, pp. 42- 46 ,(2012) , 10.1016/J.TRIBOINT.2012.02.015