Accession Number:

ADD020447

Title:

Method for Improving Acoustic Impedance of Epoxy Resins

Descriptive Note:

Patent application, Filed 11 June 2010

Corporate Author:

NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI

Personal Author(s):

Report Date:

2010-06-21

Pagination or Media Count:

17.0

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.

Subject Categories:

  • Plastics
  • Elastomers and Rubber
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE