We are one of the largest firms in industry, involved in manufacturing and exporting a comprehensive range of HDPE Geo Membranes. We use best grade raw materials and sophisticated technologies in fabrication of these membranes, which are procured from genuine and certified vendors of the industry.
Benefits of Polypropylene HDPE:
Flexibility
Resistance to low temperatures
Long term UV stability
a .the different color geomembrane
Item | Index | |||||||
Thickness mm | 0.75 | 1.00 | 1.25 | 1.50 | 2.00 | 2.50 | 3.00 | |
1 | Density g/cm3 | >=0.940 | ||||||
2 | Tensile yield strength(longitudinal and transverse)N/mm | >=11 | >=15 | >=18 | >=22 | >=29 | >=37 | >=44 |
3 | Tensile strength at break(longitudinal and transverse)N/mm | >=20 | >=27 | >=33 | >=40 | >=53 | >=67 | >=80 |
4 | Yield elongation(longitudinal and transverse)% | >=12 | ||||||
5 | Elongation at break(longitudinal and transverse)% | >=700 | ||||||
6 | Right angle tear load(longitudinal and transverse)N | >=93 | >=125 | >=160 | >=190 | >=250 | >=315 | >=375 |
7 | Anti puncture strengthN | >=240 | >=320 | >=400 | >=480 | >=640 | >=800 | >=960 |
8 | Tensile load stress cracking(Incision constant load extension method) | 300 | ||||||
9 | Carbon black content% | 2.0~3.0 | ||||||
10 | Carbon black dispersion | In 10 dates, level 3 shall no more than 1, level 4 and level 5 is not allowed | ||||||
11 | Oxidation induction time(OIT)min | Oxidation induction time under normal pressure>=100 | ||||||
Oxidation induction time under high pressure>=400 | ||||||||
12 | 85℃ heat aging(OIT Rretention rate after 90 days under normal pressure)% | >=55 | ||||||
13a | Anti-UV(OIT Rretention rate after 1600h Ultraviolet radiation) | >=50 | ||||||
Note: If the thickness specification not listed in the table, its technical index shall be according to interpolation method | ||||||||
You can choose each one to test of OIT Rretention rate under normal pressure or high pressure of No.11 and 13 listed in the table |