|
Technical
Data
Technical
Properties
 n
|
Technical Properties
|
Properties |
Standard |
Units |
PTFE |
PFA |
FEP |
ETFE |
PVDF |
PP |
|
Mechanical |
| Density |
DIN 53479 |
g/cm3 |
2.15 |
2.15 |
2.15 |
1.70 |
1.78 |
0.90 |
| Tensile strength |
DIN 53455 |
N/mm2 |
20-40 |
24-30 |
21-28 |
44 |
40-60 |
33 |
| Elongation at break |
DIN 53455 |
% |
140-400 |
300 |
240-350 |
200 |
20-80 |
20-800 |
| Tensile
modulus |
DIN
53457 |
N/mm2 |
350-750 |
280 |
350-500 |
900-1300 |
2400 |
1100-1300 |
| Flexural modulus |
ASTM
D790 |
N/mm2 |
500 |
620-670 |
650-670 |
1300 |
2250 |
|
| Flexural stress |
DIN 53452 |
N/mm2 |
5.6 |
18 |
18 |
>12 |
74 |
47 |
| Impact strength |
ASTM
D256 |
J/m |
189 |
no
break |
no
break |
no
break |
|
|
| Hardness
shore'D' |
DIN
53505 |
|
55 |
55 |
55 |
75 |
78 |
73 |
| Coefficient of friction, dynamic |
ASTM
D1894 |
<3m/min |
0.1 |
0.2 |
0.2 |
0.23 |
|
|
| Abrasion
resistance |
DIN
53754 |
mm3/1000
u |
400 |
|
3.5 |
|
2.8-5.7 |
150-200 |
|
Thermal
|
| Linear thermal
expansion coefficient |
ASTM
D696 |
10^-5K^-1 |
12-20 |
14 |
9-11 |
8-12 |
12.8 |
15 |
| Upper permanent
service temp. limit |
|
deg.
C |
260 |
260 |
205 |
155 |
150 |
100 |
| Lower permanent
service temp. limit |
|
deg.
C |
-200 |
-190 |
-190 |
-190 |
-40 |
-15 |
| Vicat-point B |
DIN
53460/B |
deg.
C |
130-140 |
74 |
70 |
|
142 |
102 |
| Thermal conductivity |
DIN
52612 |
W/mK |
0.24 |
0.19 |
0.25 |
0.23 |
0.19 |
0.22 |
| Specific heat capacity |
|
kJ/kg
K |
1.0 |
|
1.12 |
1.95 |
0.96 |
1.7 |
| Melting point |
DIN
53736 |
deg.
C |
-- |
305 |
275 |
270 |
178 |
165 |
| Oxygen index |
ASTM
D2863 |
% |
95 |
95 |
95 |
30 |
43.7 |
|
| Fire class |
UL
94 |
|
V-0 |
V-0 |
V-0 |
V-0 |
V-0 |
HB/V-2 |
|
Electrical |
| Surface
resistivity |
DIN
53482 |
ohm |
>10^17 |
>10^18 |
>10^16 |
5X10^14 |
>10^13 |
10^13 |
| Volume
resistivity |
DIN
53482 |
ohm
.cm |
>10^18 |
>10^18 |
>10^16 |
>10^16 |
5X10^14 |
>10^17 |
|
Dielectric strength (foil. 0.2-0.25 mm) |
ASTM
D149 |
kV/mm |
>20 |
>80 |
83 |
>80 |
30-60 |
75 |
| Dielectric constant (10^6Hz) |
ASTM
D150 |
|
2.1 |
2.1 |
2.1 |
2.6 |
7.5 |
2.3 |
| Dielectric factor (10^6Hz) |
ASTM
D150 |
|
>0.0003 |
0.0001 |
0.0006 |
0.005 |
0.185 |
<0.001 |
|
General
|
| Weather resistance |
Florida
exposure |
years
unaffected |
20 |
20 |
10 |
15 |
|
|
|
