Class fiber-reinforced polyamide composites toughened with ABS and EPR-g-MA

A series of glass fiber-reinforced rubber-toughened nylon 6 composites was prepared. The mechanical properties and morphology of the composites toughe ned with ABS were investigated and compared with composites toughened with EPR-g-MA. A study of the mechanical properties showed that the balance of t he impact strength and stiffness for both types of systems can be significa ntly improved by proper incorporation of glass fibers into toughened nylon 6. The differences between these two types of rubber-toughened composites a re significant at a high rubber content. However, the ductility of both com posites toughened with rubber was significantly lower than that of blends w ithout glass fiber. The relationships between rubber content, nylon 6 molec ular weight, compatibilizer, processing, and mechanical properties are disc ussed. (C) 2001 John Wiley & Sons, Inc.