HDPE Smooth Geomembrane The Durable and UV-Resistant Material for Tailings Dam Seepage Prevention and Landfill
Product Introduction
Smooth geomembrane, also known as smooth geosynthetic membrane, is a widely used waterproof and barrier type of geosynthetic material made from high molecular polymer as the basic raw material. Here is a detailed introduction to smooth geomembranes:
Material Composition and Properties
The smooth surface geomembrane uses high-quality original high-density polyethylene (HDPE) as the impervious base material. In the production process, a certain amount of carbon black, antioxidants, anti-aging agents, ultraviolet absorbers and color masterbatches are added using a special formula. It is then mass-produced by a highly automated geomembrane equipment using a three-layer co-extrusion blow molding technology.
Function and Application
Text: Smooth geomembrane has extremely low permeability, excellent chemical resistance and UV resistance, and offers a high cost-performance ratio, making it the preferred material for impervious projects in civil engineering. It is widely used in water conservancy, environmental protection, municipal engineering, aquaculture, sewage treatment, tailings dam seepage prevention, landfill, landscape gardening, and hydraulic engineering.
Environmental friendliness
High-quality native plastics and carbon black particles do not contain any preservatives and do not pollute water and soil, so the smooth geomembrane has good environmental protection.
To sum up, the smooth surface geomembrane plays an important role in modern engineering construction due to its excellent waterproof and seepage-proof performance and wide applicability.
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
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0.75mm
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1.00mm
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1.25mm
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1.50mm
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2.00mm
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2.50mm
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3.00mm
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Remark
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Item
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|
Thickness (mm)
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0.75mm
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1.00mm
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1.25mm
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1.50mm
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2.00mm
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2.50mm
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3.00mm
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|
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Density (g/c㎡,≥)
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0.940
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|
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Tensile Properties
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Yield Strength (N/mm,LD/TD)
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11
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15
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18
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22
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29
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37
|
44
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|
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Breaking Strength (N/mm,LD/TD)
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20
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27
|
33
|
40
|
53
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67
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80
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|
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Yeild Elongation Rate (%)
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10-16
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|
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Breaking Elongation Rate (%)
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≥700
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|
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Rectangular Tear Strength (N)
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93
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125
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160
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190
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250
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315
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375
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|
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Puncture Strength (N)
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240
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320
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400
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480
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640
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800
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960
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|
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Environmental Stress Crack Resistance (h)
(A single point of incision constant tensile method)
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≥500
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Carbon Black
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Carbon Black Content(Rang) (%)
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2.0~2.8
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|
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Carbon Black Dispersion
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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)
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≥100
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|
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High Pressure OIT (min)
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≥400
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85℃ Oven Ageing (Minimum Average)
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90 days after baking, the standard OIT retention(%)
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≥55
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90 days after baking, the hight pressure OIT retention(%)
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≥80
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The Anti-UV Strength
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Ultraviolet irradiation after 1600 hours, the standard OIT retention(%)
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≥50
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-70℃ The Low Temperature Embrittlement Performance impact
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Pass
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Water Vapor Penetration Coefficient g.cm (cm2.s.Pa)
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≤1.0X10-13
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Dimensional Stability
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±2.0
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Product Specification and Technical Index
(According to the Latest National standard: GH-1 & GB/T 17643-2025)
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Specification
Item
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0.30
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0.50
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0.75
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1.00
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1.25
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1.50
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2.00
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2.50
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3.00
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Remark
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Thickness (mm)
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0.30
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0.50
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0.75
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1.00
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1.25
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1.50
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2.00
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2.50
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3.00
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|
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Density (g/c㎡,≥)
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≥0.94
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Tensile Yield Strength (N/mm, ≥,LD/TD)
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4
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7
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10
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13
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16
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20
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26
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33
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40
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Tensile Breaking Strength (N/mm, ≥,LD/TD)
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6
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10
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15
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20
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25
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30
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40
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50
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60
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Yield Elongation Rate (%,≥,LD/TD)
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-
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-
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-
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1-16
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Breaking Elongation Rate (%,≥,LD/TD)
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≥600
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Rectangular Tear Load (N,≥,LD/TD)
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34
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56
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84
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115
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140
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170
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225
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280
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340
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|
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Puncture Strength (N,≥)
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72
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120
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180
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240
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300
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360
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480
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600
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720
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|
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Carbon Black Content (%)
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2.0~2.8
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|
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Carbon Black Dispersion
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Less than 1date of Grade 3 out of 10 data, grade 4,grade 5 is not allowed
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