Technical specifications and test data
 

Inspection items

Unit of measurement

Standard requirements

detection result

1

Appearance quality

/

/

qualified

2

Width deviation

mm

±10

-2

3

Thickness deviation of upper covering layer

mm

Not less than6.65

7.00

4

Thickness deviation of the lower cover

mm

Not less than2.80

3.10

5

Longitudinal full thickness tensile strength

N/mm

Not less than450

465

6

Transverse full thickness tensile strength

N/mm

Not less than100

145

7

Full thickness longitudinal reference force elongation

%

Not less than1.0

0.7

8

Full thickness longitudinal elongation

%

Not less than3.0

3.7

9

Covering a burning resistant experimental high temperature burning depth

mm

Not less than0.5

0.3

10

Ten high temperature burning depth

mm

Not less than0.1

-0.4

11

Minimum tensile strength of 125 c * 168h after hot air aging

mpa

5

12

12

Decrease in tensile strength

%

40

25

13

The lowest value of elongation at break

%

180

450

14

The elongation rate decreased

%

55

34

15

Average value of adhesion strength between layers at normal temperature and under normal temperature

N/mm

Not less than6.0

18.6

16

Minimum vertical distribution

N/mm

4.0

18.0

17

Coverage layer < 3mm: the longitudinal mean value of the covering layer and the cloth layer

N/mm

Not less than6.0

16.8

18

Longitudinal minimum value between the covering layer and the cloth layer

N/mm

4.0

16.4

19

Covering layer > 3mm: the longitudinal mean value of the covering layer and the cloth layer

20

Longitudinal minimum value between the covering layer and the cloth layer

N/mm

4.0

16.8

21

High temperature 160

N/mm

Not less than3.0

6.2

22

Minimum vertical distribution

N/mm

2.0

4.3

23

Coverage layer < 3mm: the longitudinal mean value of the covering layer and the cloth layer

N/mm

Not less than3.0

4.8

24

Longitudinal minimum value between the covering layer and the cloth layer

N/mm

2.0

4.4

25

Covering layer > 3mm: the longitudinal mean value of the covering layer and the cloth layer

N/mm

Not less than3.0

5.6

26

Longitudinal minimum value between the covering layer and the cloth layer

N/mm

2.0

5.1