Development Compounding and Evaluation of Phosphazene Rubber for Helicopter Seal Applications

Abstract

A polyphosphazene copolymer, (NP (OCH2CF3)2 - NP (OCH2C3F6CF2H)2) sub x was compounded with a variety of black and non-black reinforcing fillers, curing agents and other rubber additives. Optimum properties were obtained using silicas, silane treated clays, or combinations of these, in conjunction with peroxide curing agents. Tensile strengths of 116 Kg/cm (1650 psi) were achieved and lip seals were molded and gave evidence of potential use. The cured rubber was flexible to -54C and showed good resistance to temperatures up to 150C.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1974
Accession Number
ADA013373

Entities

People

  • Angus Wilson

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Curing Agents
  • Elastomers
  • Engineering
  • Low Temperature
  • Magnesium Compounds
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanics
  • Methanols
  • Military Research
  • Mixing
  • Organic Chemistry
  • Physical Properties
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.

Technology Areas

  • Microelectronics