HDPE Geomembrane, abbreviated as HDPE Geomembrane, is a geosynthetic material produced from high-density polyethylene resin through blow molding, coating and other processes. It has excellent chemical stability, corrosion resistance, weather resistance, mechanical strength, as well as good impermeability, and is widely used in fields such as landfill sites, tailings ponds, hydraulic engineering, and agricultural anti-seepage.
Good anti-seepage performance:
HDPE geomembrane has extremely low water permeability, which can effectively prevent the infiltration of water, chemicals, and other particles, ensuring the safety and reliability of anti-seepage engineering.
Strong chemical stability:
HDPE geomembrane has excellent chemical stability and can resist the erosion of most chemical substances, including acids, alkalis, salts, etc.
Good weather resistance:
HDPE geomembrane can withstand ultraviolet radiation and temperature changes in the natural environment without significantly reducing its performance due to aging.
Safety:
HDPE geomembrane does not contain harmful substances and will not pose a threat to the environment and human health.
Puncture resistance:
HDPE geomembrane has good puncture resistance and can resist sharp objects that may occur during construction.
Joint stability:
The joints of HDPE geomembrane are treated with special techniques to ensure the anti-seepage performance at the joints.
Good weather resistance:
HDPE geomembrane can withstand ultraviolet radiation and temperature changes in the natural environment without significantly reducing its performance due to aging.
High mechanical strength:
HDPE geomembrane has good tensile strength and puncture resistance, and can adapt to various complex geological and environmental conditions.
Biological erosion resistance:
It has good resistance to the erosion of microorganisms and plants in the soil.
Landfill geomembrane eith smooth surface Specifications(CJ/T 234-2006)
| Ltem |
Value |
| 0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| Minimum density (g/cm2) |
0.939 |
| Dimensional Stability(%) |
±2 |
| Yield strength(N/mm) |
11 |
15 |
18 |
22 |
29 |
37 |
44 |
| Breaking strength(Nmm) |
20 |
27 |
33 |
40 |
53 |
67 |
80 |
| Yield elongation(%) |
12 |
| Elongation(%) |
700 |
| Right angle tear strength(N) |
93 |
125 |
156 |
187 |
248 |
311 |
374 |
| Puncture Strength(N) |
240 |
320 |
400 |
480 |
640 |
800 |
960 |
| hEnvironmental stress cracking(single incision constant load stretching)(h) |
300 |
| Carbon Black |
|
|
|
|
|
|
|
| Carbon Black Content(range)(%) |
2.0-3.0 |
| Carbon Black Dispersion |
9 out of 10 observation areas should belong to level - or level 2, and those belonging to level 3 should not be more than once |
| Oxidation Induction Time (OIT) |
|
|
|
|
|
|
|
| min Standard OIT |
100 |
| min High Pressure OIT |
400 |
| 85'C oven aging(minimum average) |
|
|
|
|
|
|
|
| Baking 90d,the standard OlT reservation(%) |
55 |
| Baking 90d,the standard OIT reservation(%) |
80 |
| After UV irradiation 1600h,standard OIT reservations |
50 |
| 1600h after ultraviolet irradiation,high pressure OIT trservations |
50 |
| -70'C Embrittlement of lowtemperature impact |
pass |
| g·cm/(cm·s·Pa)Water vapor permeability |
≤1.0×10-13 |
The origin of HDPE geomembrane can be traced back to the 1950s, when polyethylene materials began to be synthesized and used for various industrial applications. With the development of materials science and the increasing demand for civil engineering, polyethylene geomembrane began to be widely used in anti-seepage engineering in the 1970s. HDPE geomembrane has been widely used in construction projects such as landfills, sewage treatment facilities, reservoirs, channels, roads, and railway foundations due to its high density and uniform thickness, which can provide excellent waterproof and pollution prevention performance.
HDPE composite HDPE film is also known as high-density polyethylene film, HDPE geotextile film, HDPE anti-seepage film. HDPE film is a plastic roll material composed of HDPE, which is a high crystallinity, non-polar thermoplastic resin. The surface of the original HDPE is milky white, with a certain degree of translucency in the thin section. PE has excellent resistance to most household and industrial chemicals.
Production process of HDPE geomembrane
High density polyethylene (HDPE) geomembrane is a waterproof and anti-seepage material widely used in civil engineering, environmental protection, water conservancy, agriculture and other fields. The following is a detailed introduction to the blow molding production process of HDPE geomembrane:
Raw material preparation: Firstly, it is necessary to prepare high-density polyethylene particles, which are the main raw materials for producing HDPE geomembranes. HDPE particles shall have good thermal stability, aging resistance and puncture resistance.
Melt extrusion: High density polyethylene particles are heated and melted through a melt extruder to become a molten state of high-density polyethylene. Melt extruders typically include single screw extruders, twin screw extruders, and conical screw extruders. During the melting process, strict control of temperature, pressure, and screw speed is required to ensure the melting quality of high-density polyethylene.
Blow molding: Melted high-density polyethylene is blown into shape using a blow molding machine. Blow molding machines mainly include blow molding machines and blow molding machines. During the blow molding process, the melted high-density polyethylene is blown into a thin film shape through a blowing nozzle, and then the required thickness of HDPE geomembrane is produced through processes such as cooling, traction, and winding.
Welding: Weld the HDPE geomembrane to improve its anti-seepage performance. Welding methods include hot welding, ultrasonic welding, and electric fusion welding. When welding, it is necessary to ensure the firmness and sealing of the weld seam to prevent the penetration of moisture, chemicals, and other debris.
Testing and quality control: test various performance indexes of HDPE geomembrane produced, such as tensile strength, elongation at break, puncture resistance, aging resistance, etc. Ensure product quality meets national standards and customer requirements.
Packaging and storage: Pack the HDPE geomembrane that has passed the test and store it in a dry and ventilated warehouse to avoid exposure to sunlight, rain, and chemical corrosion.
Geomembrane packaging and transportation treatment
1. Products are usually packaged with PE film or woven fabric for outer packaging and tied with straps. The packaging size and container capacity of the product are different from the product specifications.
Also, we can follow up on customer on-site requirements and exchange them.
2. Container transportation, according to your project request.
3. Port: Qingdao, China.
The company is not only committed to the research and development of new geotechnical materials to ensure product technology leadership and market competitiveness, but also ensures that every batch of products can meet high standards through strict production management and quality control systems. The company has a rich product line, including but not limited to geotextiles, geotextiles, geogrids, geomembranes, drainage materials, and geotextile mats. These products are used for key functions such as anti-seepage, drainage, reinforcement, and stability in civil engineering, and also have important applications in environmental protection and water conservancy construction.
Texas Sentai Environmental Protection Technology Co., Ltd. is an enterprise dedicated to environmental protection and geotechnical materials, committed to providing customers with high-quality environmental products and professional technical services. The company is located in Dezhou City, Shandong Province, China, with a superior geographical environment and convenient transportation.
The company has a professional technical research and development team, and through continuous technological innovation and research and development, has launched a series of high-performance geosynthetic materials that meet market demand. The product is widely used in various fields such as environmental governance, land improvement, water conservancy engineering, and road construction.
Texas Sentai Environmental Protection Technology Co., Ltd. always adheres to the principle of "quality first, customer first", strictly controls product quality, and strives to provide customers with the highest quality products and services. The company has passed multiple domestic and international certifications to ensure that product quality and management system meet international standards.
The company upholds the concept of innovation, pragmatism, and win-win, and is willing to cooperate with domestic and foreign customers to jointly promote the development of environmental protection and contribute to the construction of a beautiful home.
Our service and strength
1. With a long history, rich experience in producing geotechnical materials, comprehensive product system coverage, and one-stop procurement services;
2. Senior engineers with over 10 years of experience lead our professional technical team;
3. Establish a database of test results for each batch of products, and all of our products will be tested before shipment to ensure good quality;
4. Can provide installation and technical guidance services;
5. Third party testing or inspection;
Frequently asked questions
Q1: What is your delivery time?
A1: If there is inventory, it usually takes 3-7 days. Or if the goods are out of stock, it will take 10-15 days, depending on the quantity.
Q2: Where is your company?
A2: Dezhou, Shandong Province, China. If you would like to come, please call me and I will arrange your schedule.
Q3: Are you a trading company or a manufacturer?
A3: We are manufacturers. So our prices are lower than those of trading companies.
Q4: What is your delivery method?
A4: Telegraphic transfer, PayPal
Q5: Do you provide samples? Is it free or extra?
A5: Yes, we can provide samples for free, but we do not pay for shipping.
Q6: What are your payment terms?
A6: Payment<=$10000, 100% in advance. Payment>=$1000, 30% advance T/T, balance before shipment. If you have any other questions, please contact me.
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