Fluoroalkyleneether Silicate/Viton GLT Blends for Hydraulic System Seals: Synthesis, Blending, and Testing

Abstract

Fluoroalkyleneether silicate (FES) polymers (Tg's -82 deg C to - 91 deg C) were obtained from the reaction between fluoroether bis-dimethyl carbinols and bis-dimethylamino methyl-vinyl and dimethyl silane derivatives. Peroxide cure reactivity through the pendant vinyl moieties was demonstrated. In an effort to improve the low temperature flexibility of a commercial fluorocarbon elastomer (Viton GLT from DuPont), blends were prepared using the FES materials as an additive co-curing plasticizer. Temperature retraction tests demonstrated an optimum 9 degrees F improvement in low temperature flexibility. O-ring seal evaluations in Freon E6.5 fluid (chew and piston seal tests) demonstrated some seal enhancement and comparable durability in comparison to standard Viton GLT O-rings.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA084708

Entities

People

  • Alan A. Shaffer
  • Robert E. Cochoy
  • William E. Berner

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Air Force Facilities
  • Chemical Synthesis
  • Chemistry
  • Elastomers
  • Ethers
  • Fluorinated Hydrocarbons
  • High Temperature
  • Low Temperature
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • O Rings
  • Physical Properties
  • Plastic Explosives
  • Polymers
  • Resilience

Readers

  • Polymer Science and Engineering.