LLDPE Geomembrane
Tai'an City RuiHeng Building Materials Co., Ltd is specialized in the research, development, production and sales of geosynthetic materials, plastic products and plastic machinery. Our company is devoted to geosynthetic material research and development and application.We has more than 18 years experience of geotextiles production in geosynthetic products, including geomembrane, geotextile, HDPE geomembrane, geocell, 3D geomat, geomembrane welding machine,extrusion welder and welding rod,etc. We provide complete geosynthetic solutions for ground stabilization, reinforcement and drainage, erosion control, bank and slope protection.
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Why Choose Us
Advanced Materials
We manufacture custom geomembrane liners made from reinforced polyethylene (RPE), reinforced polypropylene (RPP) and low density polyethylene (LDPE). Our RPE and RPP liners are stronger, provide better puncture and tear resistance, are lighter weight and have excellent UV resistance when exposed to sunlight.
Reliable Quality Control
The company has established a national-standard laboratory for in-house quality control. We built a strict quality control system in all aspects from raw materials testing,production processes to final product quality testing.
Complete Qualifications
Our factory is certificated by ISO9001, ISO14001, and OHSAS18001. All geomembranes have passed the certificates of the TUV, Soncap, SASO, BV and the test of SGS and Intertek etc.
Production Market
Our products have been widely used by clients in more than 30 countries and regions, such as Australia,Indonesia,India,Philippine, Tanzania, Zambia, Kenya, Kuwait, UAE, Spain, USA, Malaysia, Singapore, Peru, Chile, Ecuador etc. We have won the praises of customers.
Advantages of LLDPE Geomembrane
Lowest permeability
LLDPE geomembrane liner provides an effective barrier against the passage of liquids and gases. This property ensures reliable containment and prevents leakage.
Superior flexibility
LLDPE geomembrane offers supper flexibility to conform to irregular surfaces and withstand movements, settlements, and differential settlement without compromising its integrity.
Outstanding stress crack capacity
LLDPE geomembrane can resist the growth and propagation of cracks under stress. This feature contributes to its long-term performance and durability in demanding environments.
Excellent UV and chemical resistance
LLDPE geomembrane can withstand prolonged exposure to sunlight without degrading or losing its effectiveness. Additionally, it is resistant to a wide range of chemicals, ensuring its durability in chemically aggressive environments.
High puncture resistance
LLDPE geomembrane provides a strong barrier against puncture hazards, such as sharp objects, ensuring the long-term integrity of the geomembrane.
Good weldability
The LLDPE geomembrane allows for efficient and reliable seam connections during installation. This ensures the integrity of the liner system and minimizes the risk of leakage.
Easy To Install
LLDPE geomembrane is easy to install due to its flexibility, manageable weight, and weldability. Its installation process is straightforward, saving time and effort during the project.
OEM/ODM availability
LLDPE geomembrane is available with OEM/ODM options, allowing for customization based on specific project requirements. This ensures that the geomembrane can be tailored to meet the desired specifications.
LLDPE Geomembrane Specifications
|
PROPERTIES |
Test Method |
Unit |
BPM50 |
BPM75 |
BPM100 |
BPM150 |
BPM200 |
BPM250 |
|
Thickness (min. avg) |
ASTM D 5199 |
mm |
0.5 |
0.75 |
1 |
1.5 |
2 |
2.5 |
|
Thickness (lowest individual reading) |
ASTM D 5199 |
mm |
0.45 |
0.67 |
0.9 |
1.35 |
1.8 |
2.3 |
|
Density(min) |
ASTM D 1505 |
g/ cm3 |
0.92 |
0.92 |
0.92 |
0.92 |
0.92 |
0.92 |
|
Tensile Properties (min. avg) |
ASTM D 6693 |
|||||||
|
Strength at Break |
kN/m |
14 |
20 |
27 |
40 |
55 |
66 |
|
|
Elongation at Break |
% |
800 |
800 |
800 |
800 |
800 |
800 |
|
|
Tear Resistance (min. average) |
ASTM D 1004 |
N |
50 |
70 |
100 |
150 |
200 |
250 |
|
Puncture Resistance (min. avg) |
ASTM D 4833 |
N |
120 |
190 |
250 |
370 |
500 |
620 |
|
Carbon Black Content (min. avg) |
ASTM D 1603 |
% |
2 |
2 |
2 |
2 |
2 |
2 |
|
Carbon Black Dispersion (min. avg) |
ASTM D 5596 |
Cat. 2 |
Cat. 2 |
Cat. 2 |
Cat. 2 |
Cat. 2 |
Cat. 2 |
Cat. 2 |
|
Low Temperature Brittleness |
ASTM D 746 |
˚ C |
< -77 |
< -77 |
< -77 |
< -77 |
< -77 |
< -77 |
|
Oxidative Induction Time (OIT) (min. avg) |
ASTM D 3895 |
Minutes |
100 |
100 |
100 |
100 |
100 |
100 |
|
Melt Flow Index (190 ° C, 2.16kg) |
ASTM D 1238 |
G/10 min |
< 1.0 |
< 1.0 |
< 1.0 |
< 1.0 |
< 1.0 |
< 1.0 |
|
2% Modulus |
ASTM D 5323 |
kN/m |
210 |
370 |
420 |
630 |
840 |
1050 |
|
Dimensional Stability (100 ˚ C, 1 hr) |
ASTM D 1204 |
% |
± 1 |
± 1 |
± 1 |
± 1 |
± 1 |
± 1 |
|
Axi-Symmetric Break Strain |
ASTM D 5617 |
% |
56 |
56 |
56 |
56 |
56 |
56 |
|
Low Temperature Brittleness |
ASTM D 746 |
˚ C |
< – 77 |
< -77 |
< -77 |
< -77 |
< -77 |
< -77 |
Application of LLDPE Geomembrane
Landfill liners and covers
LLDPE geomembranes are widely used as liners at the base of landfills to contain leachate (contaminated liquid) and prevent it from seeping into the ground. They are also used as covers to prevent water infiltration and control gas emissions.
Pond liners
In aquaculture, agriculture, and landscaping, LLDPE geomembranes are used as pond liners to hold water in man-made ponds, lagoons, and reservoirs.
Mining operations
LLDPE geomembrane is used in mining operations for heap leach pads, tailings dams, and containment ponds to prevent the leakage of hazardous chemicals and waste materials.
Secondary containment
LLDPE geomembranes are used as liners for secondary containment systems, such as under storage tanks, to contain spills or leaks of hazardous liquids like chemicals and fuels.
Water containment
LLDPE geomembranes are employed in various water containment applications, including water reservoirs, canals, and irrigation ponds, to prevent water loss.
Environmental remediation
In environmental cleanup projects, LLDPE geomembranes are used to cap contaminated sites, preventing the spread of contaminants and protecting groundwater.
Tunnel and canal liners
LLDPE geomembranes are used to line tunnels and canals, providing a watertight barrier that prevents water infiltration or leakage.
Erosion control
LLDPE geomembranes can be used in combination with other materials to control soil erosion in various civil engineering projects.
Installation of LLDPE geomembrane
Site Preparation
The reservoir area needs to be properly prepared before installing the LLDPE geomembrane. This includes clearing the site of any debris, vegetation, or sharp objects that could potentially puncture or damage the geomembrane. The subgrade should be leveled and compacted to provide a stable foundation.
LLDPE Panels/Sheets
LLDPE geomembranes are typically supplied in large rolls or panels. These panels need to be carefully unrolled or unfolded to cover the designated area of the reservoir. Special care should be taken to avoid folds, creases, or wrinkles that could compromise the integrity of the liner.
Anchoring and Seaming
The geomembrane panels are anchored to the ground using methods such as soil cover, ballast, or anchor trenches. This helps secure the geomembrane in place and prevents uplift or movement due to water pressure. The panels are then seamed together using welding techniques appropriate for LLDPE, such as thermal fusion, hot-air welding, or extrusion welding. The seams should be strong and watertight to ensure the integrity of the liner system.
Pipe and Penetration Sealing
Special attention should be given to sealing around pipes, fittings, and other penetrations that pass through the LLDPE geomembrane. This is typically done using compatible sealing materials or techniques to prevent water leakage at these points.
Quality Control and Testing
Throughout the installation process, quality control measures should be implemented to ensure the proper installation of the LLDPE geomembrane. This may include visual inspections, leak testing, and verifying seam integrity. Any defects or issues should be addressed and rectified promptly.
Backfilling and Protection
Once the LLDPE geomembrane is installed and secured, suitable backfill material is placed on top of the liner to protect it from UV exposure, mechanical damage, and erosion. The backfill material should be carefully selected to avoid sharp objects or materials that may cause damage to the geomembrane.
The LLDPE geomembrane use calendering process, the polyethylene resin is heated to the melting point in the extruder barrel,and molten plastic is extruded and then passed through pairs of rollers that extrude the molten plastic into a sheet film. The thickness of the liner depends on the gap between the pairs of rollers. The calendering process needs four or more pairs of rollers that gradually reduce the liner thickness, polish the surface, add a textured pattern. After the liner passes through the final rollers, it is cooled and to a winding roller where it is coiled and edge trimmed.
Packaging and Shipping
We're professional LLDPE geomembrane manufacturers and suppliers in China, specialized in providing high quality products with low price. We warmly welcome you to buy LLDPE geomembrane for sale here from our factory.
Geocomposite Drainage Membrane, Composite Geomembrane Liner, Geocomposite Membrane