Geomembrane is a kind of geosynthetic material made of plastic particles and other additives, which has excellent impermeability. It is mainly made of polyethylene, polypropylene, vinyl acetate and other polymer materials, is a kind of polymer chemical flexible material, has the characteristics of small specific gravity, strong extensibility, good deformation ability, corrosion resistance, low temperature resistance, and anti-freezing properties.
The application of geomembrane is very wide, mainly used in waterproof and impermeable projects, such as sewage pollution prevention and control, solid waste treatment and disposal, physical pollution prevention and control, pollution site restoration and so on. In environmental protection special seepage prevention projects, geomembrane is used in watercourse seepage prevention, chemical sewage tank seepage prevention, aquaculture tank seepage prevention and other fields. In addition, geomembrane is also used for landfill reservoir seepage prevention, oil wellhead sewage seepage prevention and so on.
The physical properties of geomembrane include good corrosion resistance, barrier property, tensile strength and fracture ductility, which make it play an important role in various geoengineering. In terms of chemical properties, the geomembrane has good acid and alkali resistance, oil resistance and salt resistance, which ensures its reliability and durability in complex environments. In terms of mechanical properties, geomembrane has high tensile strength and fracture ductility, which promotes its wide application in construction projects such as roads, Bridges and tunnels.