Description: hdpe geomembrane
Geomembranes are generally considered to be made from continuous, highly impermeable, extruded flexible sheets of either HDPE (High Density Polyethylene) or LDPE (Low Density Polyethylene). However, it is also possible to tightly weave small tape fibres of these polymers so as to achieve (either directly or by subsequent treatment) an impermeable membrane. Predominantly, the continuous extruded sheets are used for water containment or waste disposal linings. These inevitably involve the lining of soil slopes and, in order to increase the frictional characteristics of the membranes, so as to resist sliding, one or both sides of geomembranes can be provided with roughened or raised profile surfaces.
Feature: hdpe geomembrane
1. Chemical and biological erosion resistance
2. A wide using temperature range
3. Long service life
4. High tensile strength
5. Excellent anti-tearing capability
6. Excellent waterproof and anti-seepage capability
7. Low coefficient of thermal expansion, flexibility
Technical Specification: hdpe geomembrane
No. | Item | Test Value | ||||||
0.75mm | 1.0mm | 1.25mm | 1.5mm | 2.0mm | 2.5mm | 3.0mm | ||
1 | Minimum Density(g/cm³) | 0.94 | ||||||
2 | Tensile Properties |
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Strength at yield,N/mm | 11 | 15 | 18 | 22 | 29 | 37 | 44 | |
Strength at break ,N/mm | 20 | 27 | 33 | 40 | 53 | 67 | 80 | |
Elongation at yield,% | 12 | |||||||
Elongation at break,% | 700 | |||||||
3 | Tear Resistance N | 93 | 125 | 156 | 187 | 249 | 311 | 374 |
4 | Puncture Resistance N | 240 | 320 | 400 | 480 | 640 | 800 | 960 |
5 | Stress Crack Resistance, hrs | 300 | ||||||
6. | Carbon Black Content, % | 2.0-3.0 | ||||||
Carbon Black Dispersion | 1 or 2 | |||||||
7 | Standard OIT Min | 100 | ||||||
High Pressure OIT Min | 400 | |||||||
8. | Impact Cold Crack at -70°C | Pass | ||||||
9 | Water vapor permeability (g.cm/cm2 .s.Pa) | ≤1.0×10-13 | ||||||
10 | Dimensional Stability (%) | ±2 | ||||||
Application:
Perfect Material+Strict Operation+Qualified Products:
We make use of the most advanced threelayer blowing method duringproduction. The products can meet your requirements in different
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