Dilatometry tests were performed on nylon-rubber blends with various rubber concentrations, particle sizes and types of impact modifier. Whereas rubber concentration and particle size do not affect the onset of voiding in the blends during a tensile test, the type of elastomer used has a considerable effect. A correlation exists between the stress at which the rubber particles cavitate (or detach from the matrix) in the tensile test and the impact behaviour of the blend. A toughening mechanism is proposed in which the cavitation stress of the rubber and the interparticle spacing play crucial roles.
- toughening mechanism
- Nylon-rubber blend
- shear yielding
- impact toughness
Borggreve, R. J. M., Gaymans, R. J., & Eichenwald, H. M. (1989). Impact behaviour of nylon-rubber blends: 6. Influence of structure on voiding processes; toughening mechanism. Polymer, 30(1), 78-83. https://doi.org/10.1016/0032-3861(89)90386-8