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| |
Vivak Technical Data
| |
Typical
values
|
Units
|
Test
method
|
| Physical |
|
|
|
| Density |
1.27
|
g/cm³
|
DIN
53479
|
| Moisture
absorption: |
|
|
|
| -
23°C, 24h immersion (3 mm) |
0.2
|
%
|
|
| Index
of refraction n D at 20°C |
1.57
|
|
DIN
53491
|
| Light
transmittance (2 mm sheet) |
88
|
%
|
DIN
5036
|
|
|
|
|
| Mechanical |
|
|
|
| Tensile
stress at yield |
50
|
N/mm²
|
DIN
53455 (1)
|
| Elongation
at yield |
5
|
%
|
DIN
53455 (1)
|
| Tensile
strength |
26
|
N/mm²
|
DIN
53455 (1)
|
| Elongation
at break |
>100
|
%
|
DIN
53455 (1)
|
| Tensile
modulus of elasticity |
2050
|
N/mm²
|
DIN
53457 (2)
|
| Limiting
flexural stress |
77-83
|
N/mm²
|
DIN
53452
|
|
Impact
strength:
|
|
|
|
| -
Charpy unnotched |
no
break
|
J/m²
|
DIN
53453
|
| -
Charpy notched |
16
|
J/m²
|
DIN
53453
|
| -
Izod notched (4 mm) |
90
|
J/m
|
ASTM
D256
|
| Instrumented
impact (4 mm) at F max |
28
|
J
|
ASTM
D3763
|
| Rockwell
hardness |
R104-R117
|
rating
|
ASTM
D785
|
|
|
|
|
| Thermal |
|
|
|
| Glass
transition temperature |
81
|
°C
|
|
| Thermal
conductivity (l) |
0.32
|
W/m°C
|
DIN
52612
|
| Coeff.
of linear thermal expansion |
0.050
|
mm/m°C
|
|
| Heat
deflection temperature under load acc. to SO/R75 |
DIN
53461
|
| -
method A: 1.81 N/mm 2 |
63
|
°C
|
|
| -
method B: 0.45 N/mm 2 |
70
|
°C
|
|
| Max.
service temperature in air (3) |
65
|
°C
|
|
| Min.
service temperature |
-40
|
°C
|
|
|
|
|
|
| Electrical |
|
|
|
| Dielectric
strength (4) |
20
|
Kv/mm
|
IEC
243-1
|
| Volume
resistivity |
1015
|
Ohm.cm
|
DIN
53482
|
| Surface
resistivity |
1016
|
Ohm
|
DIN
53482
|
| Dielectric
constant at 10³ Hz |
2.6
|
-
|
DIN
53483
|
| Dielectric
constant at 106 Hz |
2.4
|
-
|
DIN
53483
|
| Dissipation
factor at 10³ Hz |
0.005
|
-
|
DIN
53483
|
| Dissipation
factor at 106 Hz |
0.020
|
-
|
DIN
53483
|
|
|
|
|
| Flame |
|
|
|
| Oxygen
index |
26
|
%
|
ASTM
D2863
|
| Flammability
(3 mm sheet) |
V-2
(6)
|
rating
|
UL 94
|
| Glow
wire test (2 & 3 mm) |
850
|
°C
|
IEC695-2-1
|
| Germany |
|
|
|
| -
0.5 to 8 mm sheet |
B1
|
rating
|
DIN
4102/part1
|
| -
4 mm sheet |
S4/SR2/ST1
|
rating
|
DIN
5510 DIN
|
|
- 5
& 6 mm sheet
|
S4/SR2/ST2
|
rating
|
5510
|
| |
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