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
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
Distribution Statement : APPROVED FOR PUBLIC RELEASE