Fracture Properties of Polyphenylene Oxide Composites,

摘要

The mechanical properties of glass bead,randomly oriented short glass fiber,and randomly oriented short graphite fiber polyphenylene oxide composites were investigated. Fracture toughness measurements were made using double edge notched tensile specimens and tensile strength,tensile strain and initial elastic modulus were measured in standard ASTM tensile tests. The fracture toughness was studied for filler types and geometry when no polymer-filler adhesion was present. When adhesion was promoted by surface treatment of the reinforcement,the fracture toughness of the treated fiber composites was compared to that of the untreated composites. The overall performance of the various systems was evaluated.