The geomembrane is a kind of waterproof barrier material, which takes the high-molecular polymer as the basic material. Mainly divided into: Low density polyethylene (LDPE) geomembrane, high density polyethylene (HDPE) geomembrane and EVA geomembrane. 1, complete in specifications of width and thickness. 2 has excellent resistance to environmental stress cracking and excellent resistance to chemical corrosion. 3, excellent resistance to chemical corrosion. 4 has a larger using temperature range and a longer service life. 5, used in the refuse landfill, tailings storage yard, channel seepage-proofing, dam seepage-proofing and subway projects, etc.. Physical mechanical properties of geomembrane Varieties index item LDPE geomembrane HDPE geomembrane EVA ordinary type environment friendly type tensile?strength (vertical and horizontal) (MPa) ≥14 ≥17 ≥25 ≥18 breaking elongation rate (vertical and horizontal) (%) ≥400 ≥400 ≥550 right angle tear strength vertical and horizontal) (N/mm) ≥50 ≥80 ≥110 ≥90 water vapor penetration coefficiency (g.cm/cm.s.pa) ) ≤1.0x10-16 ≤1.0x10-16 ≤1.0x10-16 ≤1.0x10-16 using temperature range +70℃～-70℃ +70℃～-70℃ +70℃～-70℃ +70℃～-70℃ environmental stress cracking resistance (F20.H) - - ≥1500 - 200℃ oxidation induction time (min) ) - - ≥20 -
