Black Double-sided Geomembrane

I. Introduction to Structure

     Black Double-sided Geomembrane is a high-performance waterproofing material mainly made of high-density polyethylene (HDPE), with 2-3% carbon black and functional additives via five-layer co-extrusion and blow molding. It features a homogeneous core and double-sided black textured surfaces, with a thickness of 0.5-3.0mm and width up to 10m. The double-sided structure enhances friction, while carbon black ensures UV resistance and structural stability, integrating impermeability, durability and mechanical strength.

II. Physical and Chemical Parameters

III. Applications in Various Fields

1.Environmental Sanitation: Used as liners and covers for landfills, isolating leachate and preventing groundwater contamination.

2.Water Conservancy Projects: Applied in reservoirs, canals and dams for anti-seepage, reducing water loss and improving structural stability.

3.Mining Industry: Serves as anti-seepage layers for tailings ponds and heap leaching pads, resisting chemical corrosion and ensuring safe production.

4.Aquaculture: Used for fish and shrimp pond liners, preventing water leakage, improving water quality and increasing breeding efficiency.

5.Industrial Anti-seepage: Applied in chemical tanks, sewage pools and oil depots, resisting acid, alkali and organic solvent corrosion.

6.Agricultural Facilities: Used for irrigation ponds, storage tanks and greenhouse foundations, ensuring water supply and improving soil environment.

IV. Advantages Over Other Geomembranes

1.Superior UV and Aging Resistance: The double-sided black design with 2-3% carbon black provides better UV protection than white or single-sided geomembranes, extending service life.

2.Enhanced Friction Performance: Double-sided textured surface increases interface friction by 20% compared to smooth geomembranes, ideal for steep slopes and reducing slippage risk.

3.Excellent Chemical Stability: Resists a wider range of acids, alkalis and salts than LLDPE or PVC geomembranes, suitable for harsh industrial and mining environments.

4.High Mechanical Properties: Higher tensile strength and elongation than conventional geomembranes, adapting to foundation settlement and external impacts without damage.

5.Convenient Construction and Low Cost: Double-sided homogeneity simplifies welding, with higher seam strength than composite geomembranes; 10m wide design reduces seams and engineering costs.

V. Application Steps

1.Substrate Preparation: Clear the site of sharp objects, level the ground, and compact the substrate to a flat, solid surface with a roughness ≤2cm.

2.Material Laying: Unroll the membrane from the bottom to the top of the slope, ensuring full contact with the substrate; overlap adjacent membranes by 10-15cm, avoiding excessive tension.

3.Welding Seam Treatment: Use a hot wedge welder to fuse the overlaps, with a welding temperature of 250-300℃; inspect seams with a vacuum box to ensure no leaks.

4.Anchor and Fixation: Secure the membrane edges with anchor trenches or concrete anchors, with an anchorage depth ≥30cm; fix at slopes and corners to prevent displacement.

5.Protection and Maintenance: Cover the membrane with a protective layer (geotextile or soil) to avoid mechanical damage; inspect regularly after construction and repair damages promptly.

VI. Advantages of Haoyang Environmental

     Haoyang Environmental has an annual geomembrane production capacity of 300,000 tons, with 20+ automated production lines, including a world-leading 10m wide five-layer co-extrusion line. As a national high-tech enterprise, it has a CNAS-certified laboratory and 70+ patents, with R&D investment accounting for over 6.8% of revenue. Its products feature high friction, UV resistance and corrosion resistance, widely used in key projects and exported to 70+ countries, providing one-stop technical services.

VII. Future Development and Application

    With global environmental protection emphasis, Black Double-sided Geomembrane will see wider applications in environmental governance, water conservancy and new energy fields. Future trends include formula optimization for higher durability and lower carbon footprint, and intelligent production for consistent quality. As infrastructure investment grows and environmental standards improve, it will become a core material for global anti-seepage projects, driving the industry’s sustainable development.