TENSILE STRESS-STRAIN BEHAVIOR OF FLEXIBILIZED EPOXY ADHESIVE FILMS.

Abstract

Films of several flexibilized epoxy adhesives were cast and the tensile stress- trainbehavior was determined. The modulus of elasticity, maximum tensile stress,strain at failure and work to failure were measured. The maximum stress and themodulus of elasticity decreased in an approximately linear manner with flexibilizercontent. A POLYSULFIDE FLEXIBILIZER DEFINITELY INCREASED VALUES FOR BOTH STRAINAT FAILURE AND WORK TO FAILURE. Polyamide, flexible epoxy and mercaptan-terminated polybutadiene flexibilizers showed very little effect on strain at failure and work to failure. hese results demonstrate that the mechanical properties of epoxy adhesives can be manipulated. If the required mechanical performance for a specific end use can be defined, it should be possible to engineer a suitable epoxy formulation for specific use. (Author-PL)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1970
Accession Number
AD0704262

Entities

People

  • V. R. Soper
  • W. T. Simpson

Organizations

  • Forest Products Laboratory

Tags

DTIC Thesaurus Topics

  • Adhesives
  • Elastic Properties
  • Engineers
  • Flexural Properties
  • Mechanical Properties
  • Modulus Of Elasticity
  • Physical Properties
  • Plastic Properties
  • Polybutadiene
  • Specialty Uses Of Chemicals
  • Stresses
  • Synthetic Rubber
  • Tensile Properties
  • Tensile Stress

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Engineering.