HDPE | LDPE | EVA | PVC | |||
conventional type | environment friendly | |||||
tensile strength MPa | ≥17 | ≥25 | ≥14 | Longitudinal 15 / horizontal 13 | ||
elongation at break% | ≥450 | ≥550 | ≥400 | Longitudinal 220 / horizontal 200 | ||
Right-angle tear strength is N/mm | ≥80 | ≥110 | ≥50 | / | ||
Carbon Black content of% | ≥2 | / | ||||
tear strength MPa | / | ≥40 | ||||
Size change rate (vertical / horizontal)% | / | ≤5 | ||||
Osmotic coefficient, cm/s | / | ≤10~11 | ||||
Environmental stress cracking F20.h | ≥1500 | / | / | |||
Oxidation induction time was min at 200℃ | ≥20 | / | / | |||
Water vapor permeability coefficient, g.cm/(cm2.s.Pa) | ≤1.0x10-13 | / |