Double textured HDPE Geomembrane | |||||||
No. | Test item |
| |||||
Thickness(mm) | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 | |
| Texture hegiht (mm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
1 | Density g/m2 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 |
2 | Tensile Yield Strength (MD&TD) (N/mm) | ≥15 | ≥18 | ≥22 | ≥29 | ≥37 | ≥44 |
3 | Tensile Breaking Strength (MD&TD) (N/mm) | ≥10 | ≥13 | ≥16 | ≥21 | ≥26 | ≥32 |
4 | Elongation at yield (MD&TD) (%) | 12 | |||||
5 | Elongation at break(MD&TD) (%) | 100 | |||||
6 | Tear Resistance (MD&TD) (N) | ≥125 | ≥156 | ≥187 | ≥249 | ≥311 | ≥374 |
7 | Puncture Strength (N) | ≥267 | ≥333 | ≥400 | ≥534 | ≥667 | ≥800 |
8 | Tensile load stress cracking (Constant load tensile method of incision) h | 300 | |||||
9 | Carbon Black Content (%) | 2.0-3.0 | |||||
11 | Oxidative Induction Time (min) | Atmospheric oxidative induction time≧100 | |||||
High pressure oxidative induction time≧400 | |||||||
12 | 85°C heat aging (Atmospheric OIT retention after 90d) (%) | 55% | |||||
13 | UV protection (OIT retention rate after 1600 h uviolizing) | 50% |