Method for Improving Acoustic Impedance of Epoxy Resins

Abstract

An epoxy and rubber microcomposite is formed by adding a carboxy-terminated or amine-terminated rubber component having a glass transition temperature less than zero degrees centigrade to a bisphenol A based epoxy resin component; heating the mixture to 150 degrees centigrade; cooling and curing with a suitable curing agent. A phase segregation occurs between the epoxy resin component and the rubber component to form discrete, spherical rubbery domains with the epoxy compound. Because the glass transition temperature of the rubbery domains is below zero degrees centigrade; the rubbery domains act as acoustic windows within the high-modulus epoxy compound.

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Document Details

Document Type
Technical Report
Publication Date
Jun 21, 2010
Accession Number
ADD020447

Entities

People

  • Thomas S. Ramotowski

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Acoustic Impedance
  • Acoustic Windows
  • Alkenes
  • Butadienes
  • Chemical Reactions
  • Composite Materials
  • Curing
  • Curing Agents
  • Glass
  • Glass Transition Temperature
  • Impedance
  • Materials
  • Physical Properties
  • Polymers
  • Resins
  • Transition Temperature
  • Transitions

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology
  • Thermal Physics or Thermal Science.