Smooth Geomembrane
1. Complete width and thickness specifications.
2. Excellent resistance to environmental stress cracking and excellent chemical resistance.
3. Excellent chemical corrosion resistance.
4. Large temperature range and long service life.
5. Used in landfills, tailings storage sites, channel seepage control, dam seepage control and subway projects.
Product description
HDPE geomembrane is a waterproof barrier type material produced from (medium) high density polyethylene resin. (Geomembrane with a density of 0.94g/cm3 or more).
HDPE geomembrane is called "High Density Polyethylene Membrane", which has excellent resistance to environmental stress cracking, low temperature, aging and corrosion resistance, as well as a wide range of operating temperature (-60--+60) and long service life (50 years).
It is widely used in the seepage control of domestic waste landfill, solid waste landfill seepage control, sewage treatment plant seepage control, artificial lake seepage control, tailings treatment and other seepage control projects.
HDPE geomembrane as a new type of material, with excellent seepage control, anti-corrosion performance, good chemical stability, and can be processed according to the actual engineering needs of the characteristics and functions, has been widely used in water conservancy engineering embankments, dams, reservoirs, seepage control, but also in the channel, cistern, sewage ponds, swimming pools, housing buildings, underground buildings, landfills, environmental engineering, etc., as seepage control, corrosion, leakage control, moistureproof material use. It is also used as anti-seepage, anti-corrosion, anti-leakage and moisture-proof material in channels, cisterns, swimming pools, house buildings, underground buildings, garbage dumps and environmental engineering. Developed countries from the 1930s onwards, began to widely use the technology, China also from the 1980s in various projects to gradually promote the use of HDPE geomembrane.
Product Parameter
serial number | Indicato | Test Value | |||||||
0.75mm | 1.00mm | 1.25mm | 1.50mm | 2.00mm | 2.50mm | 3.00mm | |||
1 | Minimum density,g/cm3 | 0.939 | |||||||
2 | Tensile properties | ||||||||
Yield strength (stress),N/mm | 11 | 15 | 18 | 22 | 29 | 37 | 44 | ||
Rupture strength (stress),N/mm | 20 | 27 | 33 | 40 | 53 | 67 | 80 | ||
Yield elongation, % | 12 | ||||||||
Elongation at break, % | 700 | ||||||||
3 | Tear strength at right angles, N | 93 | 125 | 156 | 187 | 249 | 311 | 374 | |
4 | Puncture strength, N | 240 | 320 | 400 | 480 | 640 | 800 | 960 | |
5 | Resistance to environmental stress cracking (single point incision constant load tensile method), hr |
300 | |||||||
6 | Carbon black | ||||||||
Carbon black content (range),% | 2.0-3.0 | ||||||||
Carbon black dispersion | 9 out of 10 observations should be class 1 or class 2, and no more than 1 should be class 3. | ||||||||
7 | Oxidation Induction Time (OIT) | ||||||||
Standard OIT,min, | 100 | ||||||||
High pressure OIT,min | 400 | ||||||||
8 | 85. C oven aging (min average) | ||||||||
Retention % of standard OIT after 90 d of baking | 55 | ||||||||
Retention % of high pressure OIT after 90d of baking | 80 | ||||||||
9 | UV resistance | ||||||||
After UV irradiation 1600hr, standard; % retention of OIT; | 50 | ||||||||
Retention % of high pressure OIT after UV irradiation 1600hr; | 50 | ||||||||
10 | -70℃low-temperature impact embrittlement performance | Passing | |||||||
11 | Water vapor permeability parameter，g·cm（cm2· s ·Pa） | ≤1.0*10-13 | |||||||
12 | Dimensional stability % | ±2 | |||||||
Product Performance
1、HDPE geomembrane is a kind of flexible waterproof material with high impermeability coefficient (1×10-17 cm/s);
2, HDPE geomembrane has good heat resistance and cold resistance, its use of environmental temperature of high temperature 110 ℃, low temperature -70 ℃;
3, HDPE geomembrane has good chemical stability, can resist strong acid, alkali, oil corrosion is a good anti-corrosion materials;
4, HDPE geomembrane has a high tensile strength, so that it has a high tensile strength can meet the needs of high-standard engineering projects;
5, HDPE geomembrane has a strong weather resistance, has a strong anti-aging properties, can be used for a long time exposed and maintain the original performance;
6, the overall performance of HDPE geomembrane, HDPE geomembrane has a strong tensile strength and elongation at break, so that HDPE geomembrane can be used in a variety of different harsh geological and climatic conditions. It has strong strain to adapt to uneven geological settlement.
Product Use
1, landfill, sewage or slag treatment seepage control.
2, river embankment, lake dam, tailing dam, sewage dam and reservoir, channel, liquid storage pool (pit, mine).
3, subway, basement and tunnel, tunnel seepage control lining.
4, roadbed and other foundation salt seepage control.
5, embankment, dam front horizontal seepage control cover, foundation vertical seepage control layer, construction cofferdam, waste yard.
6 seawater, freshwater farms.
7, roads, highways, railroads, foundations, expansion of soil and waterproof layer of humid loess.
8, Roof seepage control.
