The main function of geomembranes in landfills is to prevent the infiltration of leachate into groundwater, thereby avoiding pollution of groundwater sources.

The environment of landfill sites is complex, and geomembranes need to have high tensile strength and tear resistance to resist the pressure of soil or garbage during the landfill process.

Leachate contains various harmful chemicals, so geomembranes need to have strong corrosion resistance to cope with erosion in different chemical environments.

In addition, landfills are usually open-air piles, and geomembranes need to have strong UV resistance to extend their service life.

Reservoirs and dams are constantly exposed to water environments, and geomembranes need to have high durability, be able to withstand long-term immersion in water, and maintain anti-seepage performance.

Due to the possible influence of external pressure on the bottom of the reservoir and the embankment area, geomembranes need to have strong tensile strength and compressive strength to ensure that they are not damaged.