Accession Number : AD0665697

Title :   INTERFACIAL INTERACTION IN COMPOSITE STRUCTURES.

Descriptive Note : Final rept. 20 Nov 66-19 Nov 67,

Corporate Author : ALPHA RESEARCH AND DEVELOPMENT INC BLUE ISLAND ILL

Personal Author(s) : Layne,William S. ; Patrick,Robert L.

Report Date : 19 NOV 1967

Pagination or Media Count : 66

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)

Descriptors :   (*COMPOSITE MATERIALS, INTERFACES), INTERACTIONS, GLASS TEXTILES, REINFORCED PLASTICS, TRITIATED COMPOUNDS, EPOXY RESINS, RUPTURE, RADIOGRAPHY, SURFACE PROPERTIES, STRUCTURES, SILANES, DIFFUSION, WATER, AGING(MATERIALS)

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE