Rough Surface Geomembrane
Product Description
Rough Surface Geomembrane
Product Introduction：
Rough surface geomembrane is polyethylene geomembrane produced on the basis of blow molding production process, through technical innovation of production equipment, via nitrogen roughing, water roughing or spraying process. HDPE rough surface geomembrane is a new type of impermeable material. Single rough surface and double rough surface geomembrane have the functions of increasing friction coefficient and anti-slip, which can be applied to vertical impermeable steep slopes and improve engineering stability. Rough surface improves the friction performance of the geomembrane surface. Compared with the smooth geomembrane of the same specification, the rough surface geomembrane is rough, and when laying the film, the film and the base surface will form a small hollow layer, which can enhance the anti-friction and friction resistance of the film. It is generally used in projects requiring a large slope friction coefficient.
Performance Characteristics：
It has excellent temperature adaptability, extensibility, weather resistance and good aging resistance,chemical corrosion resistance and environmental stress cracking resistance.
Function And Use：
It is mainly used in landfills, sewage and waste liquid treatment, water conservancy and environmental protection, tailings pond projects, or waste residue disposal sites as anti-seepage materials.
Technical Indicators：
Rough high density polyethylene geomembrane for environmental protection (GB/T17643-2011 GH-2T1.GH-2T2 type technical index)
| Item | Unit | Technical data | ||||||
| Thickness | mm | 0.75 | 1.0 | 1.25 | 1.5 | 2.0 | 2.5 | 3.0 |
| Density | g/cm³ | ≥0.940 | ||||||
| Roughness height | mm | ≥0.25 | ||||||
| Tensile stress At yield(MD/TD) | N/mm | ≥11 | ≥15 | ≥18 | ≥22 | ≥29 | ≥37 | ≥44 |
| Breaking strength(MD/TD) | N/mm | ≥8 | ≥10 | ≥13 | ≥16 | ≥21 | ≥26 | ≥32 |
| Yield elongation(MD/TD) | % | ≥12 | ||||||
| Elongation at break(MD/TD) | % | ≥100 | ||||||
| Strength at tear(right-angle Tear)(MD/TD) | N | ≥93 | ≥125 | ≥160 | ≥190 | ≥250 | ≥315 | ≥375 |
| Antipunture strength | N | ≥200 | ≥270 | ≥335 | ≥400 | ≥535 | ≥670 | ≥800 |
| Tensile load stress cracking | h | ≥300 | ||||||
| Carbon black content | % | 2.0-3.0 | ||||||
| Carbon black distribute | / | In 10 date,3 degree no more than 1,4 and 5 degree not allowed | ||||||
| (OIT)Antioxidation time | min | ≥100 normal pressure oxidation time | ||||||
| ≥400 high pressure oxidation time | ||||||||
| 85℃Heat anti-aging | % | ≥55 | ||||||
| Uvioresistant | % | ≥50 | ||||||
| Thickness limit deviation | % | -10 | ||||||