Superficie rugosa con doble superficie de HDPE Geomembrana

Number

Value

Test value

1.75mm

1.0mm

1.25mm

1.5mm

2.0mm

2.5mm

3.0mm

1

Min Density/(g/cm2)

0.939

2

Tensile properties

Yield strength / (N/mm)

11

15

18

22

29

37

44

Break strength / (N/mm)

8

10

13

16

21

16

32

Yield elongation /%  

12

Break elongation /%

100

3

Tear resistance /N 

93

125

156

187

249

311

374

4

Puncture resistance /N    

200

267

333

400

534

667

800

5

Stress crack resistance /h

300

6

Carbon black

Carbon black content /%

2.0~3.0

Carbon black dispersion

Carbon black dispersion(only near spherical agglomerates) for 10 different views 9 in categories 1or2and1 in category3

7

Oxidative induction time (OIT) 

Standard OIT-% retained after 90 days OIT/min 

100

High pressure OIT-% retained after 90 days 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 1600 hrs /%   

Not recommended since the high temperature of the Std-OIT test produces an unrealistic result for some of the antioxidants in the UV exposed samples

High pressure OIT retained after 1600 hrs /%  

50

10

Low temperature impact brittle property at -70℃

pass

11

Permeability g.cm/(cm2).Pa

≤1.0X

12

Dimensional stability /%  Dimensional stability%

±2