EFFECTS OF INTERFACIAL ADHESION ON MICRODAMAGE AND RHEOLOGICAL BEHAVIOR OF GLASS BEAD FILLED NYLON-6

Model composites consisting of glass beads dispersed in a matrix of ny lon 6 with different degrees of interfacial adhesion were prepared. Th e effects of interfacial adhesion on damage generation in the glass be ad filled nylon 6 were studied by acoustic emission monitoring and sca nning electron microscopy, and the critical damage stress was measured . Improvement of the interfacial adhesion enhanced the tensile strengt h of the composite. The melt theological behaviour of the glass bead f illed nylon 6 was also investigated. It was found that the interfacial adhesion strength significantly affected the theological behaviour of the glass bead filled nylon 6.