Creep and Stress Relaxation Evaluation of Virgin and Thermally Aged Glass-Filled Poly(butylene terephthalate) used in Automotive Electrical Connector Applications for Electrically-Powered Vehicles by Dynamic Mechanical Analysis

Abstract

Poly(butylene terephthalate) stock with 0, 15, and 30% glass fiber filler , used in the housings of electrical connectors on hybrid and electric vehicles, was examined by creep and stress relaxation for viscous deformation and modulus loss at 25, 75, 125, and 150°C. Sets of virgin and aged samples were examined within each set then compared to each other.