LDPE Geomembrane

0.75mm

1.0mm

1.25mm

1.5mm

2.0mm

2.5mm

3.0mm

1

Density

(g/cm2)

0.939

2

Tensile properties

Yield strength

(N/mm)

11

15

18

22

29

37

44

Break strength

(N/mm)

20

27

33

40

53

67

80

Yield Elongation

12%

Break Elongation

≥450

3

Tear resistance/N

93

125

156

187

249

311

374

4

Puncture resistance/N

240

320

400

480

640

800

960

5

Stress Crack resistance/h

≥1500

6

Carbon black

Carbon black content/%

2.0-3.0

Carbon black dispersion

Carbon black dispersion(only near spherical) for 10 different views 9 in categories 1 or 2 and 1 in category 3

7

Oxidation induction time

Standard OIT/min

100

High pressure OIT/min

400

8

 Oven aging at 85℃

Standard OIT-% retained after 90 days

55

High pressure OIT-% retained after 90 days

80

9

UV resistance

Standard OIT retained after 1600hrs

50

High pressure OIT retained after 1600hrs

50

10

Low temperature impact brittle property at -70℃

11

Permeability

G.cm/(cm2).Pa

≤1.0×10^-13

12

Dimensional stability

±2

1

Weight variation%

-5 

2

Thickness,mm,≥

0.8

1.2

1.6

2.2

2.8

3.4

4.2

5.5

6.8

3

Width variation,%,m

-0.5

4

Breaking strength,KN/m,≥

4.5

7.5

10

15

20

25

30

40

50

MD/CD

5

Breaking elongation,%

40-80  MD/CD 

6

CBR Mullen Burst Strength,KN,≥

0.8

1.6

1.9

2.9

3.9

5.3

6.4

7.9

8.5

7

Seive size O₉₀,mm

0.05-0.2

8

Vertical Permeability coefficient,cm/s

K×(10^-1-10^-3)

K=1.0-9.9

9

Tear strength,KN,≥

0.14

0.21

0.28

0.42

0.56

0.70

0.82

1.1

1.25

MD/CD