HDPE composite HDPE film is also called high-density polyethylene film, HDPE geomembrane film, HDPE impermeable film, HDPE film is a plastic coil composed of HDPE, and its HDPE is a non-polar thermoplastic resin with high crystallinity. The appearance 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. Certain types of chemicals cause chemical corrosion, such as corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride)

1. HDPE geomembrane is a flexible waterproof material with a high anti-seepage coefficient (1x10-17 cm/s);
2. HDPE geomembrane has good heat resistance and cold resistance, and its use environment temperature is high temperature 110 ℃, low temperature -70 ℃;
3. HDPE geomembrane has good chemical stability and can resist the corrosion of strong acids, alkalis and oils, which is a good anticorrosive material;
4. HDPE geomembrane has a very high tensile strength, so that it has a high tensile strength to meet the needs of high-standard engineering projects;
5. HDPE geomembrane has strong weather resistance, strong anti-aging properties, and can be used for a long time to keep the original performance;
6. The overall performance of HDPE geomembrane, HDPE geomembrane has strong tensile strength and elongation at break, so that HDPE geomembrane can be used in a variety of harsh geological and climatic conditions. Adapt to geological uneven settlement and strong strain;
7. HDPE geomembrane uses high-quality primary plastics and carbon black particles without any preservatives. HDPE has been used in my country to replace PVC as a raw material for food packaging bags and plastic wrap.

Special environmental protection measures such as landfills, sewage treatment plants, power plant tailings treatment, chemical plants, fertilizer plants, sugar plant sewage tailings treatment, non-ferrous metallurgy, sulfuric acid ponds, tailings treatment, subways, basements, tunnels, roofing linings, etc. Seepage (dedicated); horizontal, vertical seepage prevention of reservoirs, canals, and dams; seepage prevention of seawater, fresh water, and farms.

The geomembrane should not be dragged or dragged during transportation to avoid sharp objects being punctured.
1. It should extend from the bottom to the high position, do not pull too tightly, and leave a margin of 1.50% to prepare for partial sinking and stretching. Taking into account the actual situation of this project, the laying order of slope is from top to bottom;
2. The two adjacent longitudinal joints should not be on a horizontal line, and should be staggered by more than 1m from each other;
3. The longitudinal joint should be more than 1.50m away from the dam foot and the bent foot, and should be set on a plane;
4. First slope and then bottom;
5. When laying the slope, the direction of the film should be basically parallel to the maximum slope line.