Accession Number : ADA307387

Title :   Sliding of Poly(Vinyl Chloride) on Metals Studied by Auger Electron Spectroscopy.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Pepper, Stephen V.

PDF Url : ADA307387

Report Date : JAN 1974

Pagination or Media Count : 24

Abstract : The sliding of poly(vinyl chloride) on nickel, iron, and S-Monel has been studied by Auger Electron Spectroscopy. Polymer was not transferred to the metals, rather, shear appeared to take place at the interface. The metal was progressively chlorinated as the polymer made multiple passes on the surface. The thickness of this chlorine film was the order of one atomic layer. Electron-induced desorption studies indicate that the chlorine is chemisorbed to the metal. These results are interpreted as evidence for mechanically induced and/or thermal degradation of the polymer during sliding. Degradation products of HCl and Cl2 which chemisorb to the metal are evolved near the interface.

Descriptors :   *METALS, *AUGER ELECTRON SPECTROSCOPY, *SLIDING CONTACTS, *POLYVINYL CHLORIDE, SHEAR PROPERTIES, THICKNESS, DEGRADATION, LAYERS, POLYMERS, FILMS, IRON, ELECTRONS, NICKEL, TRANSFER, DESORPTION, ATOMIC PROPERTIES, THERMAL DEGRADATION, CHLORINE, CHEMISORPTION.

Subject Categories : Polymer Chemistry
      Inorganic Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE