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Geomembrane is made of polyethylene and other polymer materials through blow molding process, its main function is to prevent liquid leakage and gas volatilization. According to the different types of raw materials, it is divided into low density polyethylene (LDPE) geomembrane, high density polyethylene (HDPE) geomembrane and EVA geomembrane.
Project | variety | LDPE | HDPE | EVA | |
Ⅰ | Ⅱ | ||||
Tensile strength（Longitudinal and Transverse）/Mpa | ≥14 | ≥17 | ≥25 | ≥18 | |
Elongation （Longitudinal and transverse）% | ≥400 | ≥450 | ≥550 | ≥600 | |
Tangential breaking strength （Longitudinal and Transverse）N/mm | ≥50 | ≥80 | ≥110 | ≥90 | |
WVPI（g，cm/cm²，spa） | ＜1.0×10 -16 | ||||
temperature range O90(O95)℃ | -70~+70 | ||||
ESCR F20H | ≥1500 | ||||
200℃ OIT Min | ≥20 | ||||
