| 摘要 |
<p>Industrial polyolefin piping system with improved stiffness, impact strength for use at high service temperature, comprising single- or multilayer pipes, fittings, chambers, valves and vessels, consisting of beta -nucleated propylene homopolymers with an IR tau >0.98 having a tensile modulus≥1500 MPa, a Charpy impact strength, notched, at +23 DEG C≥30 kJ/m<2> and a Vicat B temperature >90 DEG C and a Heat Distortion Temperature >100 DEG C. The industrial polyolefin piping system is suitable for chemical plant constructions comprising single- or multilayer pipes, fittings, chambers, valves and vessels with improved stiffness, impact strength and high service temperature, preferred for conveyance of natural gas, dangerous liquids and/or toxic liquids.</p> |
