INTERFACIAL INTERACTION IN COMPOSITE STRUCTURES.
Abstract
A program to examine the fundamental phenomena occurring at the interface of glass-resin composites is continued. The role of water at the interface is being studied by drawing E-glass rod from a melt in an anhydrous atmosphere and using it as a reference material with which to compare E-glass rods subjected to aging, treatments with A-1100 silane, water and binder. Model glass-epoxide composites were constructed and examined gravimetrically and radiographically for diffusion of water through them. The influence of the variables mentioned above is also examined by modulus of rupture tests, scintillation counting, and exposure of radiographic emulsions following treatments with tritiated water. A-1100 treated E-glass, when made into a glass-epoxy composite, permits water transport along the interfacial zone. Pre-exposure of the glass to air, water vapor, liquid water, or binder did not permit transport of water in the interfacial zone. The modulus of rupture of E-glass rods decreased slightly with exposure to water or other liquids, but was unaffected by exposure to the atmosphere. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 19, 1967
- Accession Number
- AD0665697
Entities
People
- Robert L. Patrick
- William S. Layne