Influence of Operating Conditions on Structure and Physical Properties of Polymeric Materials

Abstract

The changes of structure and physical properties of polymeric materials that exploited in a long time with complex mechanical loads used in pipe systems for high-pressure cold water have been studied. A significant reduction in mechanical properties of polymeric materials has been established. The most typical structural defects that occur in polymer materials during manufacture and in the exploitations, using electron microscopic studies identified. Keywords: polymers, polyethylene, mechanical properties, surface structure.