Accession Number : ADA263646

Title :   Effect of Water Immersion on Fiber/Matrix Adhesion in Thermoplastic Composites.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTU RES AND MATERIALS DIRECTORATE

Personal Author(s) : Juska, Thomas

Report Date : MAR 1993

Pagination or Media Count : 27

Abstract : Continuous fiber reinforced thermoplastics were tested for the effect of water immersion on fiber/matrix adhesion. The materials evaluated were E/PPS, AS4/PPS, E/J2, AS4/J2, S2/PEEK, AS4/PEEK, S2/PEKK, AS4/PEKK, and S2/VECTRA. These materials were tested in uniaxial compression, transverse flexure, and short beam shear, both dry and water-conditioned. Scanning electron microscopy was used to assess the quality of the fiber/matrix bond. The carbon reinforced materials retained adhesion after water immersion. However, the glass reinforced thermoplastics were in general degraded by water, which hydrolyzed the fiber/matrix bond and significantly reduced mechanical properties.... Glass reinforced thermoplastics, Fiber reinforced thermoplastics, Scanning electron microscopy.

Descriptors :   *ADHESION, *FIBERS, *IMMERSION, *WATER, *THERMOPLASTIC RESINS, COMPRESSION, ELECTRON MICROSCOPY, MECHANICAL PROPERTIES, SCANNING, TRANSVERSE, COMPOSITE MATERIALS, GLASS REINFORCED PLASTICS, CARBON REINFORCED COMPOSITES, DEGRADATION, HYDROLYSIS, SHEAR PROPERTIES.

Subject Categories : Plastics
      Laminates and Composite Materials
      Mechanics
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE