Abstract
The tensile behavior at 20 Deg of unfilled polycarbonate and polycarbonate-glass bead composites (90/10 vol %) was investigated by tensile testing with simultaneous vol. change measurements. Both the effect of the bead size and the degree of interfacial adhesion on the tensile behavior of the composites was studied. A simple model was used to obtain quant. information on the sep. contributions of several possible deformation mechanisms to the total deformation. For unfilled polycarbonate and the polycarbonate-glass bead composites with excellent interfacial adhesion, shear deformation was found to be the only significant non-Hookean deformation mechanism. Strain recovery expts. showed that shear deformation was highly elastic in character. For the composites with poor interfacial adhesion, not only shear deformation but also dewetting cavitation contributed to the non-Hookean deformation. The differences in tensile behavior between the composites with excellent and poor interfacial adhesion are explained by the different mechanisms for shear band formation at excellently and poorly adhering glass beads. [on SciFinder (R)]
| Original language | English |
|---|---|
| Pages (from-to) | 2389-2400 |
| Journal | Journal of Applied Polymer Science |
| Volume | 30 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1985 |