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Ultraviolet or atomic irradiation effect on the polyimide composite lubricating coating

  • Gai Zhao EMAIL logo , Qingjun Ding , Qihua Wang and Hanmin Peng
Published/Copyright: September 3, 2014
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 35 Issue 2

Abstract

The molybdenum sulfide/lanthanum fluoride/polyimide (MoS2/LaF3/PI) coating was synthesized and irradiated by ultraviolet (UV) or atomic oxygen (AO). The friction and wear behavior were evaluated sliding against GCr15 steel balls (ASTM A295:1998) using a ball-on-disk tribology test rig. This paper aims to discuss these issues. The chemical structure of the irradiated surface was examined by Fourier transform infrared (FTIR) spectroscopy. The worn morphologies of the coatings and counterpart were observed by scanning electron microscopy (SEM) to reveal the wear mechanism. Experimental results indicated that the height and position of the characteristic functional groups and the coefficient of friction of the PI coating changed and the wear rate value decreased after UV or AO irradiation. The effect of LaF3 combined with MoS2 on the tribological properties of the coating and wear mechanism under different irradiated conditions is discussed.

Keywords: atomic irradiation; friction and wear; lubrication; polymer coatings; ultraviolet
Corresponding author: Gai Zhao, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, No. 29 Yudao Street, Nanjing 210016, China, e-mail:

Acknowledgments

This work was supported by “The Fundamental Research Funds for the Central Universities” (No. NJ20140025), the Nanjing University of Aeronautics and Astronautics (No. 56YAH14001) and the National Science Foundation for Distinguished Young Scholars of China (No. 51025517).

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Received: 2014-5-28
Accepted: 2014-8-1
Published Online: 2014-9-3
Published in Print: 2015-3-1

©2015 by De Gruyter

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https://doi.org/10.1515/polyeng-2014-0144
Keywords for this article
atomic irradiation; friction and wear; lubrication; polymer coatings; ultraviolet

Articles in the same Issue

  1. Frontmatter
  2. Original articles
  3. Yield analysis of copolymers: effect of temperature, feed ratio and initiator concentration on the copolymerization
  4. Polymerization of 1,3-butadiene with neodymium chloride tripentanolate/triisobutylaluminum binary catalyst system: effect of aging time and reaction temperature
  5. Preparation and surface modification of Mg(OH)2/siloxane nanocomposite flame retardant
  6. Effect of chemical modification on slip resistance and mechanical properties of rubber
  7. Effect of curing temperature and layering pattern on performance studies: a novel hybrid composite
  8. Characterization of ultrasound-treated oil palm empty fruit bunch-glass fiber-recycled polypropylene hybrid composites
  9. Ultraviolet or atomic irradiation effect on the polyimide composite lubricating coating
  10. Nano and microstructures of SEBS/PP/wax blend membranes: SAXS and WAXS analyses
  11. Effects of added phthalate plasticizers on photodegradation of irradiated poly (α-methylstyrene) films
  12. Amino acids and poly(amino acids) as nucleating agents for poly(lactic acid)
  13. Nanostructural characterization of poly (vinylidene fluoride)-clay nanocomposites prepared by a one-step reactive extrusion process
  14. The extrusion of plasticized poly(vinyl chloride) in an extruder with a modified feed zone. Part 1: extrusion process
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