Effect of chlorinated water on the fatigue crack growth resistance of polyethylene compounds with recyclate content for pipe applications
Sprache des Vortragstitels:
Plastic Pipes XX
Sprache des Tagungstitel:
The present paper aims to study the effect of chlorinated water on the slow crack growth performance of compounds containing recycled high-density polyethylene (rPE HD). Commercially available rPE HD, produced from post-consumer waste, was compounded with PE pipe grade PE100 RC in several mixing ratios. The compounds, as well as the recyclate, the PE100 RC, and an injection-molding pipe grade PE80-IM were tested in terms of fatigue crack growth at 23 °C and 60 °C in water and chlorinated water to determine the influence of a harsh environment on the fatigue crack growth performance. The recyclate showed a higher dependence on temperature and chlorine content than PE100 RC. All results of the compounds showed a clear dependence on the recyclate content. One compound performed better than PE80 IM in both, water and a chlorinated water environment.