Dominique JAN, Adrian POPA
Posters # 2010 Vancouver
Small-scale tests on specimens have been developed to better understand the performance of polyethylene materials at high temperature. In the frame of this study, several polymerization and catalyst technologies have been investigated in order to select the most attractive technical options for hot and cold water conveying systems. An improved resistance to the second strain mechanism involved in the dislocation of semi-crystalline structure has been achieved thanks to the particular microstructure of single-site catalyst based copolymers. The resulting materials exhibit outstanding mechanical performance during hydrostatic pressure tests at temperatures as high as 110°C.