HDPE geomembrane for oil tank of chemical plantGeomembrane Introduction:
Geomembrane is a kind of waterproof material with basic raw material of high molecular polymer Produced by blow molding or extrusion calendaring process.
It is mainly divided into HDPE geomembrane ,LDPE geomembrane, LLDPE Geomembrane, PVC Geomembrane,EVA geomembrance, and all kinds of composite geomembranes.
Geomembrane Breif Specifications
Geomembrane Product List |
Type |
Thickness |
Width |
Raw material |
HDPE geomembrane smooth surface |
0.3mm -2.5mm |
1m to 8m,normal 5.8m |
HDPE |
HDPE geomembrane with textured surfaace |
0.75mm-2.5mm |
HDPE |
HDPE anti-skid point geomembrane |
1.0mm-2.5mm |
HDPE |
LDPE geomembrane |
0.3mm-2.5mm |
LDPE |
LLDPE geomembrane |
0.3mm-2.5mm |
LLDPE |
EVA geomembrane |
0.5mm-3.0mm |
1m to 2m,normal 1.9m |
EVA |
PVC geomembrane |
0.6mm-3.0mm |
PVC
|
Geomembrane Performance:
1, Excellent physical and mechanical performance, high tearing resistance;good deformation adaptability, high puncture resistance;
2, High aging resistance, high UV resistance, anti-acid & alkali;
3, Excellent low & high temperature resistance, innocuous, long life span;
4, Perfect water proof performance, seepage and humidity resistance.
Geomembrane Application:
1,Prevent leakage disposal in landfill or waste water or waste dregs disposing field.
2,River bank, lake dam, mine remainings, reservoir, tunnel. Liquid storage pool(pit, mine)
3,Preventing leakage in subway, basement, tunnel, hole. Anti-salt leskage in roadbed and other groundsill.
4,The plane direction laying of dam, the vertical direction laying for groundsill, used in the construction fence and waste material field.
5,Used in seawater of freshwater feed field.
6,Used in groundsill of road, highway, railway and waterproof layer of swelling clay and wet collapsed loess.
7,Preventing leakage on rooftop
Geomembrane Packing Detailed:
1,0.5MM: width 5.8MXlength100M per roll, 66rolls,38280M2/20'gp
2,0.75MM:width 5.8MXlength 50M per roll,80rolls,23200M2/20'gp
3,1.0MM: width 5.8m*length 50m per roll, 66rolls,19140M2/20'gp
4,1.5MM: width 5.8m*length 50m per roll, 40rolls,11600M2/20'gp
5,2.0MM:width 5.8m*length 50m per roll, 30rolls,8700M2/20'gp
Geomembrane Quanlity Control:
HDPE Geomembrane Technical specifications
1) GH standard
| NO. |
Item |
Index |
| GH-HDPE |
| GH-1 |
GH-2 |
| 1 |
The tensile strength Mpa |
≥ 17 |
≥ 25 |
| 2 |
The percentage of breaking elongation rate % |
≥ 450 |
≥ 550 |
| 3 |
Right-angle tear strength N/mm |
≥ 80 |
≥ 110 |
| 4 |
Carbon black content 13% |
≥ 2 |
| 5 |
Environmental stress cracking resistance F 20h |
- |
≥ 1500 |
| 6 |
Oxidative induction time at 200 ºC min |
- |
≥ 20 |
| 7 |
The permeability coefficient of water vapor |
≤ 1.0 × 10 -13 |
| gcm/(cmsPa) |
| 8 |
The impact and embrittlement property in low-temperature at 70 ºC below zero |
pass the detection |
| 9 |
Dimensional stability percentage % |
± 3 |
2) ASTM D Standard
| No. |
Properties |
Test Method |
Test Value |
| 1 |
Thickness(mm) |
ASTM D5199 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| 2 |
Density (g/cm2) |
ASTM D1505 |
0.939 |
| 3 |
Tensile Propeties |
|
|
| Yield Strength(N/mm) |
ASTM D6693 |
7 |
11 |
15 |
18 |
22 |
29 |
37 |
44 |
| Break Strength(N/mm) |
13 |
20 |
27 |
33 |
40 |
53 |
67 |
80 |
| Yield Elongation % |
Type IV |
12 |
| Break Elongation % |
700 |
| 4 |
Tear Resistance/N |
ASTM D1004 |
62 |
93 |
125 |
156 |
187 |
249 |
311 |
374 |
| 5 |
Puncture Resistance/N |
ASTM D4833 |
160 |
240 |
320 |
400 |
480 |
640 |
800 |
960 |
| 6 |
Stress Crack resistance/hr |
ASTM D5397
(App.) |
300 |
| 7 |
Carbon Black |
|
| Carbon Black Content % |
ASTM D1603 |
2.0-3.0 |
| Carbon Black Dispersion |
ASTM D5596 |
Carbon black dispersion(only near spherical agglomerates)
for 10 different views 9 in categories 1 or 2 and 1 in category 3 |
| 8 |
Oxidative Induction Time(OIT) |
|
| Standard OIT/min |
ASTM D3895 |
100 |
| High Pressure OIT/min |
ASTM D5885 |
400 |
| 9 |
Oven Aging at 85°C |
|
| Standard OIT-% retained after 90 days |
ASTM D3895 |
55 |
| High pressure OIT-% retained after 90 days |
ASTM D5885 |
80 |
| 10 |
UV Resistance |
|
Standard OIT retained
after 1600 hrs |
ASTM D3895 |
50 |
High pressure OIT retained
after 1600 hrs |
ASTM D5885 |
50 |
| 11 |
Low tempreture impact
brittle property at -70°C |
_ |
Pass |
| 12 |
Permeability g·cm/(cm2)·Pa |
_ |
≤1.0×10-13 |
| 13 |
Dimensional Stability/% |
_ |
±2 |
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