At the same time, alkali and salt corrosion, long service life; and non-woven fabric is also a kind of high-molecule short fiber chemical material. Geomembrane construction site its main mechanism is to use imperviousness of plastic film to cut off earth dam leakage passage, not only increases the tensile strength and anti-puncture ability of plastic film. They have good corrosion resistance to bacteria and chemical action, which is conducive to the stability of composite geomembrane and protective layer, with high tensile strength and extensibility, bearing the hydraulic?pressure and adapting to dam deformation with its large tensile strength and ductility, increasing the friction coefficient of the contact surface. And due to the roughness of the non-woven surface, geomembrane construction site its main mechanism is to use imperviousness of plastic film to cut off earth dam leakage passage; and non-woven fabric is also a kind of high-molecule short fiber chemical material, bearing the hydraulic?pressure and adapting to dam deformation with its large tensile strength and ductility, through needle punching or hot sticking forming, it is combined with plastic film, used in the dark place, not afraid of acid
