Marco Michelotti, Raffaella Sartini
Papers # 2016 Berlin
Polyolefins piping systems have greatly evolved over the last decade through both material innovation and extrusion technologies which have undergone significant advancement. Though high density polyethylene and polypropylene pipes are currently estimated as the best solution for a safe fluid supply, various compounds differing in macromolecular structure or additives composition are now available to overcome previous restrictions.
Multilayer extrusion technologies and modified grades of polyethylene having specific severe requirements for resistance to slow crack growth focused for pipe laying with alternative techniques, improved resistance to chlorine disinfectants used in drinking water systems, superior temperature resistance in industrial applications and excellent behaviour for large bore ducts are some of the most state-of-the-art solutions for challenging applications.
This paper will highlight some of the key features of these recent developments which have resulted in a wide range of modern infrastructural and industrial projects across Italy for a longer service lifetime, thus establishing polyolefins as the preferred base materials for any applications under pressure in the most demanding environments.