Time and temperature effects on the mechanical properties of glass-filled amide-based thermoplastics

摘要

Time-dependent mechanical design properties of four commercial thermoplastic resin systems were investigated at temperatures of 23, 100, and 150 degrees C. The test materials were glass-filled polyamides and polyphthalamides. Experiments were performed to characterize creep, creep-rupture and tensile behaviors after isothermal aging. Creep-rupture data were used to create master curves using a Sherby-Dorn analysis. Although each material possessed a different property advantage, a polyphthalamide with 33% glass reinforcement exhibited a good combination of creep resistance, strength and ductility. The reported results provide information that is critical for the design and development of structural thermoplastic components. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 11]