Geomembrane For Impermeability Of Reservoir And Artificial Lake
Product Introduction
Smooth geomembrane is a type of geomaterial with a smooth surface, usually made of high-density polyethylene, which has excellent chemical resistance and environmental stress cracking resistance. It is mainly used for seepage prevention and isolation.
Product Properties
1. Impermeability: The impermeability coefficient of the smooth geomembrane is very high, which can effectively prevent the penetration of water and pollutants.
2. Chemical resistance: It can resist the attack of many chemical substances, including acids, bases and salts.
3. Resistance to environmental stress cracking: it can remain stable in harsh environments such as ultraviolet light and temperature changes.
4. Tensile strength: It has high tensile strength and elongation, and can withstand certain water pressure and adapt to foundation deformation.
Product Application
1. Landfill: Used as an impermeable layer to prevent contaminants from seeping into groundwater.
2. Tailings storage yard: prevent harmful substances in tailings from penetrating into the environment.
3. Channel seepage prevention: used in agricultural irrigation channels to reduce water loss.
4. Dam anti-seepage: enhance the anti-seepage capacity of the dam to prevent water penetration.
5. Subway engineering: waterproof layer for subway tunnels.
6. Artificial lakes and reservoirs: as impermeable layers, maintain the stability of water bodies.
Product Specification
* Thickness(mm): 0.30mm~3.00mm
* Width:1m~9m
* Roll length: 30m~100m (customized request accept)
PS: Customized request accept for all above.
(According to the Latest National standard: GH-2S & GB/T 17643-2025)
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Specification |
0.75mm |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
Remark |
|
Item |
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Thickness (mm) |
0.75mm |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
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Density (g/c㎡,≥) |
0.940 |
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Tensile Properties |
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Yield Strength (N/mm,LD/TD) |
11 |
15 |
18 |
22 |
29 |
37 |
44 |
|
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Breaking Strength (N/mm,LD/TD) |
20 |
27 |
33 |
40 |
53 |
67 |
80 |
|
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Yeild Elongation Rate (%) |
10-16 |
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Breaking Elongation Rate (%) |
≥700 |
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Rectangular Tear Strength (N) |
93 |
125 |
160 |
190 |
250 |
315 |
375 |
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Puncture Strength (N) |
240 |
320 |
400 |
480 |
640 |
800 |
960 |
|
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Environmental Stress Crack Resistance (h) |
≥500 |
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Carbon Black |
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Carbon Black Content(Rang) (%) |
2.0~2.8 |
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Carbon Black Dispersion |
Nine of 10 observation area should be grade 1 or grade 3, not more grade4,grade5 |
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Oxidative Induction Time (OIT) |
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Standard OIT (min) |
≥100 |
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High Pressure OIT (min) |
≥400 |
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85℃ Oven Ageing (Minimum Average) |
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90 days after baking, the standard OIT retention(%) |
≥55 |
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90 days after baking, the hight pressure OIT retention(%) |
≥80 |
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The Anti-UV Strength |
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Ultraviolet irradiation after 1600 hours, the standard OIT retention(%) |
≥50 |
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-70℃ The Low Temperature Embrittlement Performance impact |
Pass |
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Water Vapor Penetration Coefficient g.cm (cm2.s.Pa) |
≤1.0X10-13 |
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Dimensional Stability |
±2.0 |
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Product Specification and Technical Index
(According to the Latest National standard: GH-1 & GB/T 17643-2025)
|
Specification |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
Remark |
|
Thickness (mm) |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
|
|
Density (g/c㎡,≥) |
≥0.94 |
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Tensile Yield Strength (N/mm, ≥,LD/TD) |
4 |
7 |
10 |
13 |
16 |
20 |
26 |
33 |
40 |
|
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Tensile Breaking Strength (N/mm, ≥,LD/TD) |
6 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
|
|
Yield Elongation Rate (%,≥,LD/TD) |
- |
- |
- |
1-16 |
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Breaking Elongation Rate (%,≥,LD/TD) |
≥600 |
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Rectangular Tear Load (N,≥,LD/TD) |
34 |
56 |
84 |
115 |
140 |
170 |
225 |
280 |
340 |
|
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Puncture Strength (N,≥) |
72 |
120 |
180 |
240 |
300 |
360 |
480 |
600 |
720 |
|
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Carbon Black Content (%) |
2.0~2.8 |
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Carbon Black Dispersion |
Less than 1date of Grade 3 out of 10 data, grade 4,grade 5 is not allowed |
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