LLDPE geomembrane is a flexible anti-seepage material made of high-quality linear low-density polyethylene resin (LLDPE) through co-extrusion blown film or calendering extrusion process. This product has good ductility, flexibility and chemical corrosion resistance, and is widely used in various anti-seepage, anti-leakage and sealing projects, especially suitable for projects with complex terrain and irregular foundations.
Product Features
Excellent flexibility: adapt to foundation settlement, irregular terrain and deformation areas;
High tensile strength: the material has good tensile properties and mechanical strength;
High elongation at break: strong ductility to avoid stress concentration cracking;
Good chemical corrosion resistance: acid, alkali, salt and oil resistant, suitable for harsh environments such as landfills and chemical pools;
Good welding performance: suitable for hot melt welding, high seam sealing;
Excellent low temperature resistance: still soft at -55℃, not easy to crack;
Convenient construction: the material is light and easy to cut, suitable for on-site laying and fast construction.
S/N
| Item | Index | ||||||
Thickness mm | 0.75 | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 | |
1 | Density g/cm3 | ≤0.939 | ||||||
2 | Breaking strength (stress) (N/mm) N/mm | ≥20 | ≥27 | ≥33 | ≥40 | ≥53 | ≥66 | ≥80 |
3 | Nominal strain at break | 800 | ||||||
4 | 2% secant modulus N/mm | 370 | 420 | 520 | 630 | 840 | 1050 | 1260 |
5 | Right-angle tear resistance N | 70 | 100 | 120 | 150 | 200 | 250 | 300 |
6 | Puncture Resistance N | 190 | 250 | 310 | 370 | 500 | 620 | 750 |
7 | Multiaxial tensile strain at break % | 30 | ||||||
8 | Resistance to environmental stress cracking h | 1500 | ||||||
9 | Carbon black content % | 2.0~3.0 | ||||||
10 | Carbon black dispersion | The number of Level 3 among 10 data is not more than one; Level 4 and Level 5 are not allowed. | ||||||
11 | Dimensional stability | ±2 | ||||||
Oxidation induction time (OIT) min | Oxidation induction time under normal pressure ≥100 | |||||||
12* | Oxidation induction time under disjoining pressure ≥400 | |||||||
13 | 85°C thermal aging (retention rate of OIT under normal pressure after 90d) % | ≥35 | ||||||
14 | Ultraviolet resistance (retention rate of OIT after 1600h ultraviolet irradiation) % | ≥35 | ||||||
Application areas
Agricultural pond/reservoir anti-seepage
Artificial lake, landscape pool, waterscape project
Sewage treatment pool, chemical waste liquid pool
Landfill anti-seepage cover
Mine tailings dam anti-seepage
Tunnels, basements, subway waterproofing layer
Rooftop greening root barrier
Fish pond, shrimp pond, aquaculture pond
Optional product types
Smooth LLDPE geomembrane: used for conventional anti-seepage and anti-leakage projects;
Single/double rough surface film: improves friction with soil, suitable for slopes;
Composite film: such as LLDPE geomembrane + non-woven fabric composite, enhances overall mechanical properties;
Green/white reflective film: facilitates identification during construction and environmental beauty;
Customized service:
Specification customization: Different thickness, color and other specifications can be customized according to customer needs.
Packaging customization: Different packaging methods can be customized according to customer needs, such as roll packaging, pallet packaging, etc.
Production scenario:
Raw material preparation: Select high-quality HDPE raw materials and undergo strict quality inspection.
Sheet production: Process HDPE raw materials into sheets.
Ultrasonic welding: Use advanced ultrasonic welding equipment to weld the sheets into a three-dimensional mesh structure.
Quality inspection: Strict quality inspection of finished products to ensure that the products meet national standards and customer requirements.
Shipping scenario:
Logistics and transportation: Use professional logistics and transportation methods to ensure that products are delivered to customers safely and promptly.
On-site guidance: Provide professional on-site guidance services to assist customers in product laying and construction.
Certificates:
Product quality certification: Passed ISO9001 quality management system certification, CE certification, etc.
Product test report: Provide product test reports issued by authoritative organizations.
FAQ
What is LLDPE geomembrane?
LLDPE geomembrane is a flexible anti-seepage membrane made of linear low-density polyethylene (Linear Low-Density Polyethylene). It has good tensile strength, flexibility and chemical corrosion resistance. It is widely used in environmental protection, water conservancy, agriculture and construction projects for anti-seepage and anti-leakage.
What are the thickness specifications of LLDPE geomembrane?
Conventional thicknesses include: 0.5mm, 0.75mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, which can be customized according to project requirements.
Can the color and size of the membrane be customized?
Yes. We provide a variety of colors (black, green, white, etc.) and widths (up to 8 meters), and also support customized lengths, rough surfaces, composite structures and other personalized services.
Can LLDPE geomembrane be used in low temperature environments?
Yes, LLDPE geomembrane has excellent low temperature resistance and can still maintain good flexibility at -55℃, which is suitable for engineering use in high-cold areas.
How is LLDPE geomembrane constructed? Does it require professional equipment?
The construction mainly uses hot melt welding technology, such as hot wedge welding machine and hot air welding gun. Although LLDPE membrane is easier to weld, it is still recommended to be installed by a professional construction team to ensure the anti-seepage performance of the seams.
0.3-3.0mm Black LLDPE geomembrane
LLDPE geomembrane is a flexible anti-seepage material made of high-quality linear low-density polyethylene resin (LLDPE) through co-extrusion blown film or calendering extrusion process. This product has good ductility, flexibility and chemical corrosion resistance, and is widely used in various anti-seepage, anti-leakage and sealing projects, especially suitable for projects with complex terrain and irregular foundations.
