HDPE Sheet for Farm Pond
1. More reliable anti-seepage effect: The anti-seepage performance of geomembranes is more stable and not affected by environmental fluctuations, ensuring long-term anti-seepage effect of the project.
2. Wide adaptability: It can be laid in complex terrains and adapted to different engineering shapes through cutting and splicing
3. High environmental safety: Using environmentally friendly polymer materials, which are non-toxic and will not cause pollution to soil and water bodies, especially suitable for scenarios with high environmental requirements such as sewage treatment and drinking water engineering.
4. Extend the service life of the project: By blocking infiltration and reducing the erosion of liquid on the engineering structure, the risk of structural damage is reduced, thereby extending the service life of the project.
Product Introduction:
HDPE Sheet for Farm Pond is an impermeable thin film material made from polymer materials, mainly used in engineering scenarios such as anti-seepage, isolation, and reinforcement. Its core function is to block the permeation path of liquids (such as water, sewage, chemical solutions, etc.) through its own impermeability, while also possessing certain mechanical properties such as tensile and tear resistance, which can adapt to the deformation requirements of different engineering environments.
Common raw materials include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), ethylene vinyl acetate copolymer (EVA), etc. According to engineering requirements, different types of films can be made through processes such as blow molding, rolling, and composite (such as composite with geotextile to form geotextile bags).
Main Features
1. Excellent anti-seepage performance: The molecular structure is dense and can effectively prevent the infiltration of liquids such as water, oil, and chemical solutions. The permeability coefficient is usually less than 1 × 10 ⁻¹⁰ cm/s.
2. Stable physical and mechanical properties: It has high tensile strength, tear strength, and puncture resistance, and can adapt to the deformation of engineering foundations (such as settlement and tension) without breaking.
3. Strong environmental resistance: it has certain corrosion resistance to acid, alkali, salt and other chemicals, and has good weather resistance (UV resistance, anti-aging), which can be used in the open air for a long time.
4. Convenient construction: The material is lightweight and can be connected by welding (hot air welding, hot melt welding) or adhesive methods, with high joint strength and fast construction efficiency.
5. Good economy: Compared with traditional anti-seepage materials such as clay and concrete, geomembranes have a shorter construction period, lower material costs, and easier maintenance in the later stage, with a high comprehensive cost-effectiveness.
Product Parameters:
Metric | ASTM | unit | Test value | Minimum test frequency | ||||||
test method | 0.75 mm | 1.00 mm | 1.25 mm | 1.50 mm | 2.00 mm | 2.50mm | 3.00 mm | |||
Minimum average thickness | D5199 | mm | 0.75 | 1 | 1.25 | 1.5 | 2 | 2.5 | 3 | Per volume |
Minimum value (any one of 10) | -10% | -10% | -10% | -10% | -10% | -10% | -10% | |||
minimum density | D 1505/D 792 | g/cm3 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 90,000 kg |
Minimum average tensile performance (1) | D638 Type IV | |||||||||
Breakage strength, | N/mm | 20 | 27 | 33 | 40 | 53 | 67 | 80 | 9,000 kg | |
yield strength | N/mm | 11 | 15 | 18 | 22 | 29 | 37 | 44 | ||
Strain extension, | % | 700 | 700 | 700 | 700 | 700 | 700 | 700 | ||
yield extension | % | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||
Minimum strength of right-angle tear | D 1004 | N | 93 | 125 | 156 | 187 | 249 | 311 | 374 | 20,000 kg |
Minimum puncture strength | D4833 | N | 240 | 320 | 400 | 480 | 640 | 800 | 960 | 20,000 kg |
Constant tensile load stress cracking (2) | D5397 | hour | 300 | 300 | 300 | 300 | 300 | 300 | 300 | Based on GRI GM-10 |
Carbon black content | D 1603(3) | % | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 9,000 kg |
Carbon black dispersion | D5596 | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | 20,000 kg | |
Oxygen induction time (OIT) (5) | 90,000 kg | |||||||||
(a) Standard OIT | D3895 | minute | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
（b） high-handed OIT | D5885 | minute | 400 | 400 | 400 | 400 | 400 | 400 | 400 | |
85℃ Oven aging (minimum average) (5)(6) | Per formula | |||||||||
(A) Standard OIT is retained after 90 days | D 5721 | % | 55 | 55 | 55 | 55 | 55 | 55 | 55 | |
(B) High voltage OIT is retained for 90 days | D 3895 D5885 | % | 80 | 80 | 80 | 80 | 80 | 80 | 80 | |
Ultraviolet resistance (7) | Per formula | |||||||||
（a） standard OIT | D3895 | Note (8) 50 | ||||||||
(b) Retention of high pressure OIT after 1600 hours (9) | D5885 | % | ||||||||
Product Applications:
1. Water conservancy engineering
Reservoir, dam, and channel anti-seepage: Geomembrane can reduce leakage losses by more than 90% and extend the service life of the project. For example, after laying HDPE geomembrane in small reservoirs, the effective storage capacity is increased by more than 30%.
Slope protection engineering: to prevent soil erosion on slope surfaces, improve stability, commonly used for river management and dam reinforcement.
2. Environmental engineering
Landfill anti-seepage: Geomembranes are laid at the bottom and side walls to prevent soil and groundwater pollution caused by leachate and protect ecological safety.
Sewage treatment plant anti-seepage: prevent sewage leakage and avoid secondary pollution.
3. Mining Engineering
Tailings pond and storage yard anti-seepage: prevent the leakage of heavy metals and chemicals in the tailings slurry, and protect the surrounding environment.
Lining of washing and sedimentation tanks: Improve resource recovery efficiency and reduce water waste.
4. Transportation facilities
Highway and railway foundation reinforcement: Enhance the bearing capacity of the foundation and prevent settlement and deformation.
Tunnel and subway waterproofing: As a waterproof layer, it resists groundwater erosion and ensures structural safety.
5. Agriculture and Aquaculture
Reservoir and reservoir anti-seepage: improve water resource utilization and reduce evaporation losses.
Lining of aquaculture ponds and fish ponds: to prevent water pollution, increase aquaculture density and yield.
6. Municipal engineering
Basement and roof waterproofing: replacing traditional waterproofing materials, with simple construction and strong durability.
Artificial lakes and golf course ponds for anti-seepage: maintain the stability of landscape water bodies and reduce the frequency of water replenishment.
Geomembranes, with their characteristics of anti-seepage, corrosion resistance, aging resistance, and high strength, have become core materials in fields such as water conservancy, environmental protection, and mining. Its advantages of low cost, fast construction, and strong adaptability not only improve the quality of engineering, but also promote the green transformation of engineering technology. With the advancement of polymer material technology, the performance of geomembranes will be further optimized, providing a more reliable solution for global infrastructure construction.
