hdpe geomebrane with Column point

Number

value

test value

0.75mm

1.00mm

1.25mm

1.50mm

2.oomm

2.50mm

3.00mm

1

Density/(g/cm2)

0.939

2

Tensile propeties

Yield strength/(N/mm)

11

15

18

22

29

37

44

Break strength/(N/mm)

8

10

13

16

21

26

32

Yield elongation/%

12

Break elongation/%

100

3

Tear resistance/N

93

125

156

187

249

311

374

4

Puncture/N

200

267

333

400

534

667

800

5

Stress crack tesistance/h

300

6

Carbon black

Carbon black content/%

2.0-3.0

Carbon black dispersion

Carbon black dispersion for 10 different views 9 in categories 1 or 2 and in category 3

7

Oxidative induction time

Standard OIT

100

High pressure OIT

400

8

Oven aging at 8.5.C

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 for some of antioxidants in the UV exposed samples

High pressure OIT retained after 1600 hrs

50

10

Low tempreture impact brittle property at-70.C

PASS