HDPE Geomembrane
HDPE Geomembrane Manufacturer: Shandong Lianjie – The leading Geomembrane manufacturer in China. It is located in the High-Tech Development Zone of Tai’an City. Lianjie is a one-stop supplier of geosynthetics with 15 years of professional experience and multiple national certifications. Our HDPE Geomembrane include 100 mil(2.5 mm), 120 mil(3 mm) HDPE geomembrane, and so on. We will customize the most professional one-stop HDPE Geomembrane solution for you according to your needs!
What is HDPE Geomembrane
The price of HDPE geomembrane is not fixed and is subject to significant market fluctuations influenced by multiple factors. Currently, the mainstream quotation in the domestic market typically ranges from several yuan to over twenty yuan per square meter. Key determinants include raw material costs, product thickness, compliance standards and quality, as well as whether ancillary materials and installation (such as geotextiles and anchor trenches) are included. Therefore, a precise quotation necessitates a comprehensive assessment based on specific project requirements, such as thickness, standards, quantity, and engineering solutions.
Price of HDPE Geomembrane
The price of HDPE geomembrane is not fixed and is subject to significant market fluctuations influenced by multiple factors. Currently, the mainstream quotation in the domestic market typically ranges from several yuan to over twenty yuan per square meter. Key determinants include raw material costs, product thickness, compliance standards and quality, as well as whether ancillary materials and installation (such as geotextiles and anchor trenches) are included. Therefore, a precise quotation necessitates a comprehensive assessment based on specific project requirements, such as thickness, standards, quantity, and engineering solutions.
Our HDPE Geomembrane for Sale
HDPE Geomembrane Specification Parameter Table
Parameter | Unit | Specification Range / Typical Value | Explanation |
|---|---|---|---|
Thickness | mm | 0.75, 1.0, 1.5, 2.0, 2.5, 3.0 | Nominal thickness. This is fundamental to determining impermeability and mechanical properties. Landfills commonly use 1.5mm and above. |
Width | m | 5.0 - 9.0 | A greater width reduces the number of field seams, enhancing impermeability reliability. |
Roll Length | m | 50 - 150 | Customized based on project requirements and transportation constraints. |
Mass per Unit Area | g/m² | Calculated based on thickness and density | e.g., A 1.5mm membrane with a density of 0.94 g/cm³ has a theoretical mass of ~1410 g/m². |
Resin Type | - | High-Density Polyethylene (HDPE) | Must be made from virgin polyethylene resin; recycled materials are not permitted. |
Carbon Black Content | % | 2.0 - 3.0 | Used for UV resistance. Insufficient content will significantly reduce service life. |
Appearance | - | Black, Smooth, Free of Holes | The surface can be smooth or textured. |
Tensile Yield Strength | N/mm | ≥ 11 (MD/XD) | Key Indicator: Represents the material's tensile resistance at the yield point. |
Tensile Break Strength | N/mm | ≥ 15 (MD/XD) | Key Indicator: Represents the material's tensile resistance at the break point. |
Yield Elongation | % | ≥ 12 (MD/XD) | The material's deformation capacity at the yield point. |
Break Elongation | % | ≥ 700 (MD/XD) | Key Indicator: Reflects the material's ductility and toughness. A higher value indicates a greater ability to accommodate substrate deformation. |
Tear Resistance | N | ≥ 93 (MD/XD) | Indicates the material's resistance to the propagation of a rip or tear. |
Puncture Resistance | N | ≥ 240 | Reflects the ability to resist penetration by sharp objects; especially critical for landfills. |
Density | g/cm³ | ≥ 0.940 | Core Indicator. Higher density generally correlates with better stiffness, chemical resistance, and durability. |
Carbon Black Dispersion | Rating | ≤ 2 | Assesses the uniformity of carbon black distribution in the resin. A lower rating is better, directly impacting anti-aging performance. |
Oxidative Induction Time (OIT) @ 85°C | min | ≥ 100 | Core Durability Indicator. Measures resistance to thermal oxidative degradation, directly related to the design service life. |
Low-Temperature Brittleness @ -70°C | - | Pass | Evaluates the material's toughness at extremely low temperatures to ensure it does not become brittle and crack in cold climates. |
Water Vapor Permeability | g·cm/(cm²·s·Pa) | < 1.0 × 10⁻¹³ | Core Impermeability Indicator. The extremely low value demonstrates excellent fluid barrier properties. |
Dimensional Stability | % | ± 2.0 | Reflects thermal expansion and contraction, which affects the control of installation tension. |
UV Resistance | - | Standard OIT Retention ≥ 50% | Typically achieved by adding carbon black and anti-oxidants. Measured by the retention of properties after a specified period of UV exposure. |
the Key Strengths of HDPE Geomembrane
Impermeability
Effectively blocks the migration of liquids and gases, forming a reliable environmental barrier.
Corrosion Resistance
Exhibits strong resistance to acids, alkalis, salts, oils, and most organic solvents.
Durability
By incorporating high-quality carbon black and other UV stabilizers, it effectively resists photo-oxidative degradation.
Mechanical Properties
Possesses high tensile strength, tear resistance, and elongation at break.
HDPE VS PVC Geomembrane
HDPE Geomembrane
Advantages
- Excellent chemical resistance
- High tensile strength and tear resistance
- Good UV resistance
- Excellent performance at high and low temperatures
- Long service life (over 50 years)
Disadvantages
- Poor flexibility
- High welding requirements and specialized equipment needed
- Poor adaptability to foundation settlement
- Relatively higher cost
Typical Applications
- Landfill liners
- Wastewater treatment ponds
- Mining heap leach pads
- Hazardous waste containment
- Large reservoir and canal liners
PVC Geomembrane
Advantages
- Excellent flexibility and adaptability to ground deformation
- Easy welding and installation
- Good puncture resistance
- Relatively lower cost
- Convenient construction
Disadvantages
- Poor chemical resistance
- Moderate UV resistance
- Susceptible to microbial degradation
- Poor temperature adaptability
Typical Applications
- Artificial lakes and water features
- Roof garden waterproofing
- Tunnel waterproofing
- Small pond liners
- Temporary containment applications
Frequently Asked Questions
What are HDPE geomembranes commonly used for?
HDPE geomembranes, with their extremely low permeability coefficient, are primarily used as highly effective impermeable barrier materials.
They are most commonly employed in environmental engineering projects, such as landfills (for municipal solid waste and industrial hazardous waste) and wastewater treatment ponds, to prevent harmful leachate from contaminating soil and groundwater. Simultaneously, they are widely used in water conservancy projects, like impermeable linings for reservoirs, dams, and canals. In municipal and transportation engineering, they serve as waterproofing layers in tunnels and subways, and are used for seepage control in artificial lakes and landscape water bodies.
Their core function is to construct reliable artificial impermeable barriers in various engineering projects, ensuring environmental safety and the stability of structures.
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