Friction and Wear of Nine Selected Polymers with Various Fillers in Liquid Hydrogen.

Abstract

Experiments were conducted with a 0.1875-inch- (0.476-cm-) radius hemisphere of nine polymers in sliding contact with a rotating 17-4 PH disk in liquid hydrogen. Sliding velocity was 2300 feet per minute (701 m/min) at a load of 1 kilogram. Results indicate that several filled polymers show promise. Graphite-filled polyamide (nylon), graphite filled and glass-fiber-filled polytrifluorochlorethylene (PTFCE) and a 50-percent poly-tetrafluoroethylene (PTFE) - 50-percent polyparaphenyl have friction and wear similar to filled-PTFE composites commonly used in cryogenic applications.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1969
Accession Number
ADA306882

Entities

People

  • Donald W. Wisander
  • Robert L. Johnson

Organizations

  • Glenn Research Center

Tags

DTIC Thesaurus Topics

  • Adhesion
  • Composite Materials
  • Creep
  • Films
  • Flow
  • Fluoropolymers
  • Friction
  • Graphitic Materials
  • Lubricants
  • Lubrication
  • Materials
  • Materials Testing
  • Mechanical Properties
  • Physical Properties
  • Plastics
  • Resins
  • Shear Strength

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Polymer Science and Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).