Development and Evaluation of Phosphonitrilic Fluoroelastomer O-Rings.

Abstract

The purpose of this investigation was to develop and evaluate phosphonitrilic fluorelastomer compounds for O-ring hydraulic seal applications. Formulations were sought which would be serviceable in hydraulic fluids over the temperature range of -80F to 400F. The polymer used in this investigation was a phosphonitrilic fluoroelastomer prepared in the Central Research Laboratories of The Firestone Tire and Rubber Company and having the formula: (P(OCH2CF3)(OCH2C4F8H)N)n. The effects of reinforcing agents, vulcanization agents and stabilizers on compound properties were investigated. Efforts were made to optimize curing times and temperatures; stress-strain properties; hardness; compression set; tear and abrasion resistance; fluid, water, steam and acid resistance, and low temperature flexibility. In addition, the Seal Group of Parker Hannifin fabricated O-ring seals from selected stocks and conducted dynamic extrusion and chew tests on the seals. In related studies experiments were conducted on the coating of stainless steel cable with phosphonitrilic fluoroelastomer compounds.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA012266

Entities

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  • Gary S. Kyker

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  • Advanced Electronics
  • Cyber
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Birds
  • Chemistry
  • Curing Agents
  • Dermatologic Agents
  • Fabrication
  • Magnesium Compounds
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Military Research
  • Physical Properties
  • Stresses
  • Tensile Strength
  • Wear Resistance

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  • Clinical Trial Research.
  • Polymer Science and Engineering.