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Title of Journal: Tribol Lett

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Abbravation: Tribology Letters

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Springer US

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1573-2711

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The Role of Functional End Groups of Perfluoropoly

Authors: Saravanan Prabakaran Sundaramurthy Jayaraman Duong Hai Minh Sujeet K Sinha
Publish Date: 2014/10/14
Volume: 56, Issue: 3, Pages: 423-434
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Abstract

In an earlier work we demonstrated the development of SU8 composites using perfluoropolyether PFPE as lubricant filler which reduced friction coefficient by ~7 times and enhanced wear life of SU8 by more than four orders of magnitude In this work we have investigated the role of chemical bonding between SU8 and PFPE molecules using two types of PFPE lubricants ie Fomblin® Zdol and Z03 in improving the tribological properties of the composite Zdol has polar –OH end groups whereas Z03 has nonpolar CF3 end groups SU8 with Zdol SU8 + Zdol films yielded ~8 times greater wear life than SU8 with Z03 SU8 + Z03 films and more by four orders of magnitude than pure SU8 The nature of the films was analyzed in detail by chemical and physical characterization techniques like Xray photoelectron spectroscopy water contact angle and thermogravimetric analysis The results validated the role of polar end functional group of Zdol in covalent binding with SU8 upon UV plasma treatment that resulted in improved tribological propertiesThis research is supported by the startup grant R265000361133 and SERC 2011 Public Sector Research Funding PSF GrantThe views expressed herein are those of the authors and are not necessarily those of the funding agencies The names of the supplier companies mentioned in the paper are for reference only and we believe same results may be obtained by the products and chemicals supplied by other companies


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Other Papers In This Journal:

  1. A Film Thickness Correction Formula for Double-Newtonian Shear-Thinning in Rolling EHL Circular Contacts
  2. An investigation into friction behaviour of dispersion-strengthened copper under severe railway braking conditions
  3. In Situ NbC Particulate-Reinforced Iron Matrix Composite: Microstructure and Abrasive Wear Characteristics
  4. The Role of Ferric Oxide Nanoparticles in Improving Lubricity and Tribo-Electrochemical Performance During Chemical–Mechanical Polishing
  5. Influence of Post-treatment on the Microstructural and Tribomechanical Properties of Suspension Thermally Sprayed WC–12 wt%Co Nanocomposite Coatings
  6. Lateral Vibration Analysis of Flexible Shafts Supported on Elliptical Journal Bearings
  7. Influence of Friction on Surface Asperity Flattening Process in Cold Uniaxial Planar Compression (CUPC)
  8. Effect of Surface Roughening of Substrate Steel on the Improvement of Delamination Strength and Tribological Behavior of Hydrogenated Amorphous Carbon Coating Under Lubricated Conditions
  9. Transmission Electron Microscopy Analysis of Mo–W–S–Se Film Sliding Contact Obtained by Using Focused Ion Beam Microscope and In Situ Microtribometer
  10. Effect of Chromium on Oxidation in Wear of Surface Nanocrystalline Martensite Steel
  11. Design of a New Tribometer for Tribological and Viscoelasticity Studies of PTFE Valve Seats
  12. Tribochemistry of Bulk Zinc Metaphosphate Glasses
  13. Simulation of Hydrocarbon Oil Contamination at the Head–Disk Interface Using Molecular Dynamics
  14. Impact Abrasive Wear Response of Carbon/Carbon Composites at Elevated Temperatures
  15. Analyzing Periodic Signals in Rotating Pin-on-Disc Tribotest Measurements Using Discrete Fourier Transform Algorithm
  16. Frictional Voltammetry with Copper
  17. Polymer-Brush Lubrication in Oil: Sliding Beyond the Stribeck Curve
  18. Explanation for the mechanical strength of amyloid fibrils
  19. Experimental investigation of frictional and viscoelastic properties of intestine for microendoscope application
  20. Dissipation of Vibration in Rough Contact
  21. Movement of Entrapped Oil Under Pure Rolling Conditions
  22. Study on Surface Asperity Flattening in Cold Quasi-Static Uniaxial Planar Compression by Crystal Plasticity Finite Element Method
  23. High-Temperature Friction and Wear of Ag/h-BN-Containing Ni-based Composites Against Steel

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