Effect of Water Immersion on Fiber/Matrix Adhesion in Thermoplastic Composites.
NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTU RES AND MATERIALS DIRECTORATE
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Continuous fiber reinforced thermoplastics were tested for the effect of water immersion on fibermatrix adhesion. The materials evaluated were EPPS, AS4PPS, EJ2, AS4J2, S2PEEK, AS4PEEK, S2PEKK, AS4PEKK, and S2VECTRA. 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 fibermatrix bond. The carbon reinforced materials retained adhesion after water immersion. However, the glass reinforced thermoplastics were in general degraded by water, which hydrolyzed the fibermatrix bond and significantly reduced mechanical properties.... Glass reinforced thermoplastics, Fiber reinforced thermoplastics, Scanning electron microscopy.
- Laminates and Composite Materials
- Physical Chemistry