High Density Polyethylene Lagoon Lined with HDPE Geomembrane 1mm
2mm 1.5mm
Product Introduction:
Geomembrane is a waterproof barrier material made of high molecular
polymers (such as polyethylene, polyvinyl chloride, etc.), mainly
divided into:
1. Single material geomembrane
- LDPE geomembrane (low-density polyethylene): thickness 0.2-3.0mm,
good flexibility, suitable for scenes with large deformation.
- HDPE geomembrane (high-density polyethylene): thickness 2.5-9.0mm,
tensile strength up to 20-40MPa, strong chemical corrosion
resistance, often used in large projects such as landfills and
artificial lakes.
- EVA geomembrane (ethylene-vinyl acetate copolymer): outstanding low
temperature resistance, suitable for use in cold areas.
2. Composite geomembrane
It is made of plastic film and non-woven fabric, with both
anti-seepage and reinforcement functions. Common types include one
cloth and one membrane, two cloths and one membrane, etc., with
stronger puncture resistance.
Key performance advantages
1. Corrosion resistance
It can resist corrosion by chemical substances such as acid,
alkali, and salt, and is suitable for scenes such as sewage
treatment pools and chemical waterproofing.
2. Anti-aging and durability
- The service life can reach more than 50 years under light-proof
conditions. Austrian research cases show that the stability of
polypropylene materials can exceed 100 years.
- Wide operating temperature range (-70℃ to 110℃), adaptable to
extreme environments.
3. Mechanical properties
The elongation at break can reach 300%-700%, the tensile strength
is up to 40MPa, the tear resistance is strong, and the warp knitted
composite structure can further disperse the stress.
Typical application scenarios
1. Water conservancy projects
Reservoir and dam anti-seepage (such as Zhoutou Reservoir uses
two-cloth-one-film composite geomembrane).
Riverway restoration and water storage tank anti-seepage.
2. Environmental protection projects
- Anti-seepage of landfill bottom layer (HDPE membrane above 2.0mm is
recommended, with bentonite waterproof blanket).
- Anti-seepage of biogas tanks and oxidation ponds (black film biogas
tank technology is mature and low cost).
3. Agriculture and breeding
- Anti-seepage of fish ponds and lotus ponds (special membrane for
lotus ponds can increase production by 30%-50%).
- Anti-seepage of irrigation channels to reduce water loss.
Key points for construction and selection
1. Base treatment
Sharp objects need to be removed and the surface needs to be
leveled and compacted. The slope design is recommended to be 1:1.0
to prevent sliding.
2. Jointing process
Hot-melt welding is the main method. The joint strength must reach
more than 80% of the parent material to avoid leakage caused by
manual bonding.
3. Protective layer design
- The diameter of the covering layer particles must be ≤6mm
(calculation formula: d≤kσ/P, safety factor k is 5).
- Non-woven geotextile + silty clay layered covering is recommended,
with a thickness of ≥200mm.
| No. | Properties | Test Method | Test Value |
| 1 | Thickness(mm) | ASTM D5199 | 0.50 | 0.75 | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 |
| 2 | Density (g/cm2) | ASTM D1505 | 0.939 |
| 3 | Tensile Propeties | | |
| Yield Strength(N/mm) | ASTM D6693 | 7 | 11 | 15 | 18 | 22 | 29 | 37 | 44 |
| Break Strength(N/mm) | 13 | 20 | 27 | 33 | 40 | 53 | 67 | 80 |
| Yield Elongation % | Type IV | 12 |
| Break Elongation % | 700 |
| 4 | Tear Resistance/N | ASTM D1004 | 62 | 93 | 125 | 156 | 187 | 249 | 311 | 374 |
| 5 | Puncture Resistance/N | ASTM D4833 | 160 | 240 | 320 | 400 | 480 | 640 | 800 | 960 |
| 6 | Stress Crack resistance/hr | ASTM D5397 (App.) | 300 |
| 7 | Carbon Black | |
| Carbon Black Content % | ASTM D1603 | 2.0-3.0 |
| Carbon Black Dispersion | ASTM D5596 | Carbon black dispersion(only near spherical agglomerates)for 10
different views 9 in categories 1 or 2 and 1 in category 3 |
| 8 | Oxidative Induction Time(OIT) | |
| Standard OIT/min | ASTM D3895 | 100 |
| High Pressure OIT/min | ASTM D5885 | 400 |
| 9 | Oven Aging at 85°C | |
| Standard OIT-% retained after 90 days | ASTM D3895 | 55 |
| High pressure OIT-% retained after 90 days | ASTM D5885 | 80 |
| 10 | UV Resistance | |
| Standard OIT retained after 1600 hrs | ASTM D3895 | 50 |
| High pressure OIT retained after 1600 hrs | ASTM D5885 | 50 |
| 11 | Low tempreture impact brittle property at -70°C | _ | Pass |
| 12 | Permeability g·cm/(cm2)·Pa | _ | ≤1.0×10-13 |
| 13 | Dimensional Stability/% | _ | ±2 |
Packing and Delivery
Package:
1.With plastic roll core inside
2.Two layer PP woven bags
3.With 2 unloading belts
Transportation:we support ship,air,expressage and land transportation.
Welcome to Contact With Yixing Shenzhou !!!
