Accession Number : ADA308233

Title :   Preparation and Properties of Polytetrafluoroethylene Impregnated with Rhenium Oxides.

Descriptive Note : Technical note,

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

Personal Author(s) : Leibecki, Harold F. ; Easter, Robert W.

PDF Url : ADA308233

Report Date : FEB 1973

Pagination or Media Count : 21

Abstract : The results of tests carried out to determine the properties of polytetrafluoroethylene (PTFE) impregnated with rhenium oxides are presented. The tests included measurement of physical properties of the impregnated material and investigation of the effects of preparation process variables. Based on the latter tests a mechanism to describe the permeation process is postulated which identifies the rate controlling step to be diffusion of ReF6 molecules into the solid during the initial ReF6 soak. Physical property tests indicated that the electronic conductance is increased by many orders of magnitude while the desirable properties of the PTFE remain virtually unchanged.

Descriptors :   *POLYMERS, *OXIDES, *TETRAFLUOROETHYLENE RESINS, *RHENIUM, *IMPREGNATION, TEST AND EVALUATION, ELECTRONICS, MEASUREMENT, PERMEABILITY, PREPARATION, CONDUCTIVITY, PHYSICAL PROPERTIES, MATERIALS, VARIABLES.

Subject Categories : Polymer Chemistry
      Inorganic Chemistry
      Physical Chemistry
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE