EFFECTS OF WATER ON EPOXY-RESIN SYSTEMS

THE EFFECT OF CONTINUOUS IMMERSION IN WATER ON THE TENSILE STRENGTH, TENSILE ELONGATION, TENSILE MODULUS, FLEXURAL STRENGTH, FLEXURAL STRAIN, AND BOND STRENGTH OF FIVE DIFFERENT EPOXY-RESIN SYSTEMS WAS EVALUATED. THE WATER ABSORPTION OF THE FIVE SYSTEMS WAS ALSO OBTAINED. THE TEST RESULTS INDICATE THAT THE USE OF A MODIFIER IN PROPER AMOUNTS WILL PRODUCE A LARGE INCREASE IN STRENGTH AND ELONGATION AND A LARGE DECREASE IN TENSILE MODULUS AND WATER ABSORPTION. TWO OF THE MODIFIERS TESTED, POLYMIDE AND AMIDOPOLYAMIN, PRODUCED EPOXY-RESINS SYSTEMS WHICH WERE NOT DELETERIOUSLY AFFECTED BY IMMERSION. THESE ADDITIONS IN THE PROPER PROPORTIONS WILL MATERIALLY REDUCE ALL THE PHYSICAL PROPERTIES OF THE RESIN SYSTEM EXCEPT BOND STRENGTH, BUT WILL INCREASE SIGNIFICANTLY THE MODULUS OF ELASTICITY. THE TESTING ERRORS DETERMINED IN THIS INVESTIGATION ARE GIVEN AS A GUIDE FOR TESTING THE EINGINEERING PROPERTIES OF EPOXY-RESIN FORMULATIONS. /AUTHOR/

• Supplemental Notes:
  • Tech Rpt C-71-2, 58 PP
• Corporate Authors:

  U.S. Army Waterways Experiment Station

  3909 Halls Ferry Road
  Vicksburg, MS  United States  39180-6199
• Authors:
  • Husbands, T B
• Publication Date: 1971-9

Subject/Index Terms

• TRT Terms: Additives; Epoxy resins; Impacts; Physical properties; Polyamide resins; Water
• Old TRIS Terms: Water effects
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217169
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 15 1972 12:00AM