Geomembrane Stress Cracking Resistance Depending on the Polymer Used
This communication aims to link the influence of the HDPE polymer used within the manufacturing of the Geomembranes on the stress cracking resistance of several Geomembranes.
For this, several characteristics will be analysed such as density – directly related to the crystallinity of polymer -, the melt flow index – linked to the molecular weight of the polymer – and the molecular weight distribution of the polymer. Later on, stress cracking resistance’s tests will be made – according to ASTM D5397 standards at a single point SP-NCT- of geomembranes manufactured with these polymers and the results will be analysed.
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