Accession Number : ADA260704


Title :   Effect of Water Immersion on Fiber/Matrix Adhesion


Descriptive Note : Research and dev. rept.


Corporate Author : NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SHIP MATERIALS ENGINEERING DEPT


Personal Author(s) : Juska, Thomas


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260704.pdf


Report Date : Jan 1993


Pagination or Media Count : 19


Abstract : A study was made on the effect of water immersion on fiber/matrix adhesion in composites. Representatives of the four main classes of continuous fiber composites were tested: glass/thermoset, carbon/thermoset, glass/ thermoplastic, and carbon/thermoplastic. Water conditioning was done by immersion in 50 deg C distilled water. The only class of composites degraded by water was glass-reinforced thermoplastics. However, carbon-reinforced vinyl esters, a subset of the carbon/thermoset class, appear to have weak fiber/matrix bonds when dry, and these bonds are further degraded by water. In both cases, immersion in water hydrolyzed the interfacial bonds and caused large, irrecoverable property reductions.


Descriptors :   *FIBERS , *WATER , *COMPOSITE MATERIALS , *ADHESION , *IMMERSION , *MATRIX MATERIALS , MECHANICAL PROPERTIES , THERMOSETTING PLASTICS , DISTILLED WATER , VINYL PLASTICS , ESTERS , CHEMICAL BONDS , GLASS , CARBON , REDUCTION , INTERFACES


Subject Categories : Physical Chemistry
      Laminates and Composite Materials
      Textiles
      Plastics


Distribution Statement : APPROVED FOR PUBLIC RELEASE