Certain characteristics of fracture of polypropylene under the influence of aggressive media, temperature, and mechanical loads

Abstract

This article describes a method of determining the long-term strength of plastics under a combined influence of mechanical loads (uniaxial tension), temperature, and aggressive media. Data are reported on the time-to-rupture of polypropylene in air, water, sulfuric and hydrochloric acids, and a 10% NaOH solution at 20–140° C at stresses of up to 0.6 UTS.