Hydrolytic Stability of Two New Polyurethane Potting Compounds

Abstract

Two new urethane potting compounds have been prepared by crosslinking an hydroxyl- terminated 1,2-polybutadiene with trifunctional isocyanates. The low volatility of the isocyanates used in the process reduces the toxicity and preparation hazards considerably. The results of tests on these compounds indicate that they have much greater hydrolytic stability than previously used materials. The electrical resistance of the samples were measured at 50 and 500 volts in order to detect any deterioration of the electrical properties of the resins during the high humidity exposure.

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Document Details

Document Type
Technical Report
Publication Date
Apr 04, 1973
Accession Number
AD0759972

Entities

People

  • Joseph M. Augl
  • Richard D. Ezell

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Connectors
  • Electrical Properties
  • Electrical Resistance
  • Environment
  • Hardness
  • High Humidity
  • Laboratory Tests
  • Materials
  • Munitions
  • Ordnance Laboratories
  • Physical Properties
  • Polybutadiene
  • Polyurethanes
  • Resins
  • Synthetic Rubber
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.