
Best LLDPE Geomembrane Manufacturer
2025-09-19 23:21
The properties differences between HDPE geomembrane and LLDPE geomembrane are as follows:
Properties | Test Method | Test Value-GM13 1.0mm HDPE geomembrane | Test Value-GM17 1.0mm LLDPE geomembrane |
Tensile properties- Break elongation | ASTM D6693 | 700% | 800% |
Puncutre Resistance | ASTM D4833 | 320N | 250N |
Tear resistance | ASTM D1004 | 125N | 100N |
Oven aging at 85℃- Standard OIT(min.ave.)-% retained after 90 days | ASTM D3895 | 55% | 35% |
UV resistance- Standard OIT (min.ave.)-% | ASTM D3895 | 50% | 35% |
The break elongation of LLDPE is higher than that of HDPE, which proves that its flexibility in the practical application of landfill capping is better than that of HDPE, and it is more adaptable to uneven settlement in the landfill than HDPE. In terms of design and application, it is also safer.
The stress crack resistance of LLDPE geomembrane is better than HDPE geomembrane, because LLDPE geomembrane has lower density and better flexibility, so there will be no environmental stress cracking resistance problem. For this reason, in the standard of GRI GM17 of LLDPE geomembrane, the indicator of stress cracking resistance is not even included in the indicator category.
In other properties, such as puncutre resistance, tear resistance, oven aging and UV resistance, HDPE geomembrane is better than LLDPE geomembrane.